{"id":3745,"date":"2026-06-24T07:01:40","date_gmt":"2026-06-24T07:01:40","guid":{"rendered":"https:\/\/ycpcbs.com\/?page_id=3745"},"modified":"2026-08-10T02:21:30","modified_gmt":"2026-08-10T02:21:30","slug":"double-sided-fr4-pcb","status":"publish","type":"page","link":"https:\/\/ycpcbs.com\/it\/double-sided-fr4-pcb\/","title":{"rendered":"Double-sided FR4 PCB"},"content":{"rendered":"<style>\n    html { scroll-behavior: smooth; }\n    body { font-family: Inter, sans-serif; }\n    .glass-card {\n      background: rgba(255, 255, 255, 0.84);\n      backdrop-filter: blur(14px);\n      border: 1px solid rgba(52, 199, 89, 0.12);\n    }\n    .hero-gradient {\n      background:\n        radial-gradient(circle at top right, rgba(52, 199, 89, 0.16), transparent 42%),\n        radial-gradient(circle at bottom left, rgba(52, 199, 89, 0.08), transparent 42%);\n    }\n    .green-glow { box-shadow: 0 24px 80px rgba(52, 199, 89, 0.18); }\n    @keyframes float {\n      0% { transform: translateY(0); }\n      50% { transform: translateY(-12px); }\n      100% { transform: translateY(0); }\n    }\n    .animate-float { animation: float 6s ease-in-out infinite; }\n    .image-card,\n    .photo-block {\n      position: relative;\n      overflow: hidden;\n      background: #f8fafc;\n      border: 1px solid rgba(15, 23, 42, 0.08);\n    }\n    .image-card { border-radius: 1.25rem; }\n    .photo-block { border-radius: 1.5rem; }\n    .image-card img,\n    .photo-block img {\n      width: 100%;\n      height: 100%;\n      object-fit: cover;\n      display: block;\n      transition: transform 0.5s ease;\n    }\n    .image-card:hover img,\n    .photo-block:hover img { transform: scale(1.04); }\n    .image-tag {\n      position: absolute;\n      left: 1rem;\n      top: 1rem;\n      z-index: 10;\n      padding: 0.35rem 0.75rem;\n      border-radius: 999px;\n      background: rgba(52, 199, 89, 0.95);\n      color: #fff;\n      font-size: 0.75rem;\n      font-weight: 700;\n      box-shadow: 0 10px 25px rgba(15, 23, 42, 0.15);\n    }\n    .photo-caption {\n      position: absolute;\n      left: 1rem;\n      right: 1rem;\n      bottom: 1rem;\n      z-index: 10;\n      padding: 1rem;\n      border-radius: 1rem;\n      background: rgba(255, 255, 255, 0.86);\n      backdrop-filter: blur(12px);\n      border: 1px solid rgba(52, 199, 89, 0.12);\n    }\n    .photo-caption-dark {\n      background: rgba(10, 10, 10, 0.74);\n      border: 1px solid rgba(255, 255, 255, 0.12);\n      color: #fff;\n    }\n    .table-wrap {\n      scrollbar-width: thin;\n      scrollbar-color: #34C759 #f1f5f9;\n    }\n    .product-table th { white-space: nowrap; }\n    .product-table td { vertical-align: middle; }\n    \n    \n    \n    \n    \n    \n    .cert-mini-logo {\n      max-height: 40px;\n      max-width: 100%;\n      object-fit: contain;\n    }\n  \n\n\/* YC PCB Unified Contact Popup *\/\n#ycpcbsFloatQuote{\n  position:fixed;\n  right:24px;\n  bottom:24px;\n  z-index:9998;\n  display:inline-flex;\n  align-items:center;\n  justify-content:center;\n  gap:8px;\n  min-height:50px;\n  padding:13px 22px;\n  border:0;\n  border-radius:999px;\n  background:#34C759;\n  color:#ffffff!important;\n  text-decoration:none!important;\n  font-size:15px;\n  font-weight:800;\n  cursor:pointer;\n  box-shadow:0 14px 32px rgba(52,199,89,.34);\n  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;\n}\n#ycpcbsFloatQuote:hover{\n  background:#28a745;\n  transform:translateY(-2px);\n  box-shadow:0 18px 38px rgba(52,199,89,.38);\n}\n.ycpcbs-contact-popup{\n  display:none;\n  position:fixed;\n  inset:0;\n  z-index:99999;\n  align-items:center;\n  justify-content:center;\n  padding:20px;\n  background:rgba(15,23,42,.68);\n  backdrop-filter:blur(6px);\n  -webkit-backdrop-filter:blur(6px);\n}\n.ycpcbs-contact-popup:target{display:flex}\n.ycpcbs-popup-dialog{\n  position:relative;\n  width:min(560px,100%);\n  max-height:calc(100vh - 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Solder mask options include standard colors and high-reflectance white or green for LED applications. Board forming includes CNC milling, V-Cut routing, tab routing, and custom mould operations. Optional end-to-end PCBA integration is available for BOM sourcing, SMT, DIP, functional testing, and final packing.\n        <\/p>\n\n        <div class=\"grid grid-cols-1 sm:grid-cols-3 gap-3 mb-7 max-w-2xl mx-auto lg:mx-0\">\n          <div class=\"bg-white border border-slate-200 rounded-2xl p-4\">\n            <div class=\"text-lg font-bold text-neutral-950\">3-5 Days<\/div>\n            <div class=\"text-xs text-slate-500\">Prototype delivery after file approval<\/div>\n          <\/div>\n          <div class=\"bg-white border border-slate-200 rounded-2xl p-4\">\n            <div class=\"text-lg font-bold text-neutral-950\">PTH Vias<\/div>\n            <div class=\"text-xs text-slate-500\">Plated <a href=\"\/pcb-assembly\/\" style=\"font-weight:bold;color:var(--e-global-color-primary,#0058e6);text-decoration:underline;\">through-hole<\/a> interconnection<\/div>\n          <\/div>\n          <div class=\"bg-white border border-slate-200 rounded-2xl p-4\">\n            <div class=\"text-lg font-bold text-neutral-950\">ISO \/ UL \/ RoHS<\/div>\n            <div class=\"text-xs text-slate-500\">Compliance documentation support<\/div>\n          <\/div>\n        <\/div>\n\n        <!-- Hero Certification Strip -->\n        <div class=\"grid grid-cols-2 sm:grid-cols-4 gap-3 mb-8 max-w-3xl mx-auto lg:mx-0\">\n          <div class=\"bg-white border border-slate-200 rounded-2xl p-4 text-center\">\n            <div class=\"h-10 mb-3 flex items-center justify-center\">\n              <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/ISO-9001.png\" alt=\"ISO 9001 certification logo placeholder\" class=\"cert-mini-logo\" \/>\n            <\/div>\n            <div class=\"text-xs font-bold text-neutral-950\">ISO 9001<\/div>\n            <div class=\"text-[11px] text-slate-500\">Quality System<\/div>\n          <\/div>\n\n          <div class=\"bg-white border border-slate-200 rounded-2xl p-4 text-center\">\n            <div class=\"h-10 mb-3 flex items-center justify-center\">\n              <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/UL.png\" alt=\"UL documentation support logo placeholder\" class=\"cert-mini-logo\" \/>\n            <\/div>\n            <div class=\"text-xs font-bold text-neutral-950\">UL Support<\/div>\n            <div class=\"text-[11px] text-slate-500\">PCB Compliance<\/div>\n          <\/div>\n\n          <div class=\"bg-white border border-slate-200 rounded-2xl p-4 text-center\">\n            <div class=\"h-10 mb-3 flex items-center justify-center\">\n              <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/Rohs.png\" alt=\"RoHS compliance logo placeholder\" class=\"cert-mini-logo\" \/>\n            <\/div>\n            <div class=\"text-xs font-bold text-neutral-950\">RoHS<\/div>\n            <div class=\"text-[11px] text-slate-500\">Material Compliance<\/div>\n          <\/div>\n\n          <div class=\"bg-primary text-white rounded-2xl p-4 text-center\">\n            <div class=\"text-lg font-bold\">100%<\/div>\n            <div class=\"text-xs font-semibold\">AOI + E-Test<\/div>\n            <div class=\"text-[11px] text-white\/75 mt-1\">Before Packing<\/div>\n          <\/div>\n        <\/div>\n\n        <div class=\"flex flex-col sm:flex-row items-center justify-center lg:justify-start gap-4\">\n      \n<a href=\"#comparison-table\" class=\"px-8 py-4 bg-primary hover:bg-primary-dark text-white !text-white rounded-xl font-semibold transition-all shadow-lg shadow-primary\/20 flex items-center gap-2 group\">\n  <span class=\"text-white !text-white\">Compare Specifications<\/span>\n  <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"h-5 w-5 text-white !text-white group-hover:translate-x-1 transition-transform\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\">\n    <path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M13 7l5 5m0 0l-5 5m5-5H6\"><\/path>\n  <\/svg>\n<\/a>\n\n\n\n          <button type=\"button\" data-product=\"Double Sided FR4 PCB\" class=\"quote-open px-8 py-4 bg-white border border-slate-200 hover:border-primary text-neutral-950 rounded-xl font-semibold transition-all\" onclick=\"openInquiry()\">\n            Upload Gerber for Quote\n          <\/button>\n        <\/div>\n\n        <div class=\"mt-8 grid grid-cols-1 sm:grid-cols-2 gap-3 max-w-2xl mx-auto lg:mx-0 text-sm\">\n          <div class=\"p-4 bg-white border border-slate-200 rounded-2xl\">\n            <strong class=\"text-neutral-950\">Standard Production:<\/strong>\n            <span class=\"text-slate-500\"> 7-12 working days after file approval and payment.<\/span>\n          <\/div>\n          <div class=\"p-4 bg-white border border-slate-200 rounded-2xl\">\n            <strong class=\"text-neutral-950\">Expedited Production:<\/strong>\n            <span class=\"text-slate-500\"> Available upon request after technical review.<\/span>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <!-- Right Visual Area -->\n      <div class=\"relative hidden lg:block\">\n        <div class=\"relative z-10 animate-float\">\n          <div class=\"absolute -inset-4 bg-primary\/20 blur-3xl rounded-full\"><\/div>\n\n          <div class=\"glass-card p-3 rounded-[2rem] shadow-2xl green-glow relative\">\n            \n            <div class=\"image-card h-[460px] rounded-[1.6rem] overflow-hidden\">\n              <span class=\"image-tag\">2-Layer FR4 PCB<\/span>\n              <img decoding=\"async\"\n                src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/green-FR4-PCB.jpg\"\n                alt=\"Custom 2-layer double sided FR4 PCB product photo\"\n                loading=\"lazy\"\n                class=\"w-full h-full object-cover object-center\"\n              \/>\n            <\/div>\n\n            <!-- Compact Info Strip Under Image -->\n            <div class=\"mt-3 grid grid-cols-3 gap-3\">\n              <div class=\"bg-white rounded-2xl border border-slate-100 p-4 text-center\">\n                <div class=\"text-sm font-bold text-neutral-950\">FR4<\/div>\n                <div class=\"text-[11px] text-slate-500 mt-1\">Base Material<\/div>\n              <\/div>\n\n              <div class=\"bg-white rounded-2xl border border-slate-100 p-4 text-center\">\n                <div class=\"text-sm font-bold text-neutral-950\">2 Layers<\/div>\n                <div class=\"text-[11px] text-slate-500 mt-1\">PTH Routing<\/div>\n              <\/div>\n\n              <div class=\"bg-white rounded-2xl border border-slate-100 p-4 text-center\">\n                <div class=\"text-sm font-bold text-neutral-950\">E-Test<\/div>\n                <div class=\"text-[11px] text-slate-500 mt-1\">Before Packing<\/div>\n              <\/div>\n            <\/div>\n\n            <div class=\"mt-3 bg-white rounded-2xl border border-slate-100 px-5 py-4\">\n              <h3 class=\"font-bold text-neutral-950 text-lg leading-tight mb-1\">\n                Custom Double Sided FR4 PCB Manufacturing\n              <\/h3>\n              <p class=\"text-sm text-slate-600 leading-snug\">\n                Suitable for LED drivers, control boards, connector PCBs, power modules, and PCBA projects.\n              <\/p>\n            <\/div>\n\n          <\/div>\n        <\/div>\n      <\/div>\n\n    <\/div>\n  <\/div>\n<\/section>\n\n\n    <!-- Procurement Summary -->\n    <section class=\"bg-neutral-950 text-white py-8\">\n      <div class=\"container mx-auto px-6\">\n<div class=\"grid grid-cols-1 md:grid-cols-5 gap-4\">\n  <div class=\"p-5 rounded-2xl bg-primary text-white border border-primary shadow-sm\">\n    <div class=\"text-white\/80 font-bold text-sm mb-1\">Layer \/ Material<\/div>\n    <div class=\"font-semibold text-white\">2-Layer FR4<\/div>\n  <\/div>\n\n  <div class=\"p-5 rounded-2xl bg-primary text-white border border-primary shadow-sm\">\n    <div class=\"text-white\/80 font-bold text-sm mb-1\">Via Structure<\/div>\n    <div class=\"font-semibold text-white\">PTH \/ Plated Through-Hole<\/div>\n  <\/div>\n\n  <div class=\"p-5 rounded-2xl bg-primary text-white border border-primary shadow-sm\">\n    <div class=\"text-white\/80 font-bold text-sm mb-1\">Trace \/ Space<\/div>\n    <div class=\"font-semibold text-white\">0.15 \/ 0.15 mm Standard<\/div>\n  <\/div>\n\n  <div class=\"p-5 rounded-2xl bg-primary text-white border border-primary shadow-sm\">\n    <div class=\"text-white\/80 font-bold text-sm mb-1\">Surface Finish<\/div>\n    <div class=\"font-semibold text-white\">OSP \/ HASL \/ ENIG<\/div>\n  <\/div>\n\n  <div class=\"p-5 rounded-2xl bg-primary text-white border border-primary shadow-sm\">\n    <div class=\"text-white\/80 font-bold text-sm mb-1\">Outline<\/div>\n    <div class=\"font-semibold text-white\">Individual \/ Panel \/ V-Cut \/ Mould<\/div>\n  <\/div>\n<\/div>\n\n\n      <\/div>\n    <\/section>\n\n    <!-- Product Catalog -->\n    <section id=\"product-catalog\" class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"flex flex-col lg:flex-row lg:items-end lg:justify-between gap-8 mb-12\">\n          <div class=\"max-w-3xl\">\n            <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n              Product Catalog\n            <\/div>\n\n            <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n              Double Sided FR4 PCB Product Options\n            <\/h2>\n\n            <p class=\"text-slate-600 leading-relaxed\">\n              Select by application, solder mask, via requirement, surface finish, golden finger design, forming method, and PCBA requirement. Each item can be quoted from Gerber files, drawings, BOM, or reference samples.\n            <\/p>\n          <\/div>\n\n          <div class=\"flex flex-col sm:flex-row gap-3\">\n            <a href=\"#comparison-table\" class=\"px-6 py-3 rounded-xl bg-white border border-slate-200 hover:border-primary font-semibold text-neutral-950 transition-all text-center\">\n              Compare Parameters\n            <\/a>\n            <button type=\"button\" data-product=\"Double Sided FR4 PCB Catalog\" class=\"quote-open px-6 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">\n              Request RFQ\n            <\/button>\n          <\/div>\n        <\/div>\n\n        <div class=\"grid grid-cols-1 md:grid-cols-2 xl:grid-cols-3 gap-6\">\n\n          <!-- Standard -->\n          <article class=\"bg-white rounded-3xl border border-slate-200 hover:border-primary\/40 hover:shadow-xl transition-all overflow-hidden\">\n            <div class=\"p-4\">\n              <div class=\"image-card h-56\">\n                <span class=\"image-tag\">Standard 2-Layer<\/span>\n                <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/07\/Double-sided-FR4-immersion-gold1.jpg\" alt=\"Standard double sided FR4 PCB product photo\" loading=\"lazy\" \/>\n              <\/div>\n            <\/div>\n\n            <div class=\"p-6 pt-2\">\n              <div class=\"text-xs font-bold text-primary uppercase tracking-wider mb-2\">YC-DF4-001<\/div>\n              <h3 class=\"text-xl font-bold text-neutral-950 mb-3\">Standard Double Sided FR4 PCB<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed mb-5\">\n                General 2-layer FR4 PCB with plated through-hole vias for control boards, sensor boards, interface modules, power boards, and consumer electronics.\n              <\/p>\n\n              <div class=\"grid grid-cols-2 gap-3 text-sm mb-5\">\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Layer<\/span><strong>2-Layer<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Via<\/span><strong>PTH<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Copper<\/span><strong>1-3oz<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Finish<\/span><strong>HASL \/ OSP \/ ENIG<\/strong><\/div>\n              <\/div>\n\n              <div class=\"p-4 rounded-2xl bg-primary-light border border-primary\/20 mb-5\">\n                <div class=\"text-sm font-bold text-neutral-950 mb-3\">Engineering Review Scope<\/div>\n                <ul class=\"space-y-2 text-sm text-slate-700 leading-relaxed\">\n                  <li>\u2022 Gerber and drill file completeness review<\/li>\n                  <li>\u2022 Annular ring, PTH via, and finished hole tolerance check<\/li>\n                  <li>\u2022 Copper clearance and solder mask bridge evaluation<\/li>\n                  <li>\u2022 Panelization method: individual, V-Cut, or tab routing<\/li>\n                <\/ul>\n              <\/div>\n\n              <button type=\"button\" data-product=\"Standard Double Sided FR4 PCB\" class=\"quote-open w-full px-5 py-3 bg-primary hover:bg-primary-dark text-white rounded-xl font-semibold transition-all\" onclick=\"openInquiry()\">\n                Quote This Product\n              <\/button>\n            <\/div>\n          <\/article>\n\n          <!-- Industrial Control -->\n          <article class=\"bg-white rounded-3xl border border-slate-200 hover:border-primary\/40 hover:shadow-xl transition-all overflow-hidden\">\n            <div class=\"p-4\">\n              <div class=\"image-card h-56\">\n                <span class=\"image-tag\">Industrial Control<\/span>\n                <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/07\/4-layer-FR4-PCB.jpg\" alt=\"Industrial control double layer FR4 PCB product photo\" loading=\"lazy\" \/>\n              <\/div>\n            <\/div>\n\n            <div class=\"p-6 pt-2\">\n              <div class=\"text-xs font-bold text-primary uppercase tracking-wider mb-2\">YC-DF4-IC<\/div>\n              <h3 class=\"text-xl font-bold text-neutral-950 mb-3\">Industrial Control Double Layer FR4 PCB<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed mb-5\">\n                2-layer FR4 PCB for relay control, IO modules, sensor interfaces, machine control boards, terminal boards, and switching control circuits.\n              <\/p>\n\n              <div class=\"grid grid-cols-2 gap-3 text-sm mb-5\">\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Material<\/span><strong>FR4<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Copper<\/span><strong>1-3oz<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Mask<\/span><strong>Green \/ Custom<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Forming<\/span><strong>CNC + V-Cut<\/strong><\/div>\n              <\/div>\n\n              <div class=\"p-4 rounded-2xl bg-primary-light border border-primary\/20 mb-5\">\n                <div class=\"text-sm font-bold text-neutral-950 mb-3\">Engineering Review Scope<\/div>\n                <ul class=\"space-y-2 text-sm text-slate-700 leading-relaxed\">\n                  <li>\u2022 High-current trace routing and copper clearance validation<\/li>\n                  <li>\u2022 Terminal pad design for insertion force and soldering reliability<\/li>\n                  \n                  \n                  \n                <\/ul>\n              <\/div>\n\n              <button type=\"button\" data-product=\"Industrial Control Double Layer FR4 PCB\" class=\"quote-open w-full px-5 py-3 bg-primary hover:bg-primary-dark text-white rounded-xl font-semibold transition-all\" onclick=\"openInquiry()\">\n                Quote This Product\n              <\/button>\n            <\/div>\n          <\/article>\n\n          <!-- Golden Finger -->\n          <article class=\"bg-white rounded-3xl border border-slate-200 hover:border-primary\/40 hover:shadow-xl transition-all overflow-hidden\">\n            <div class=\"p-4\">\n              <div class=\"image-card h-56\">\n                <span class=\"image-tag\">Golden Finger<\/span>\n                <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/03\/ENIG-PCB.png\" alt=\"Golden finger double layer FR4 PCB product photo\" loading=\"lazy\" \/>\n              <\/div>\n            <\/div>\n\n            <div class=\"p-6 pt-2\">\n              <div class=\"text-xs font-bold text-primary uppercase tracking-wider mb-2\">YC-DF4-GF<\/div>\n              <h3 class=\"text-xl font-bold text-neutral-950 mb-3\">Golden Finger Double Layer FR4 PCB<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed mb-5\">\n                2-layer FR4 PCB with golden finger edge connector for plug-in modules, control cards, communication boards, and connector interface boards.\n              <\/p>\n\n              <div class=\"grid grid-cols-2 gap-3 text-sm mb-5\">\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Type<\/span><strong>Golden Finger<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Layer<\/span><strong>2-Layer FR4<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Finish<\/span><strong>ENIG \/ Gold<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Forming<\/span><strong>CNC Milling<\/strong><\/div>\n              <\/div>\n\n              <div class=\"p-4 rounded-2xl bg-primary-light border border-primary\/20 mb-5\">\n                <div class=\"text-sm font-bold text-neutral-950 mb-3\">Golden Finger Review Scope<\/div>\n                <ul class=\"space-y-2 text-sm text-slate-700 leading-relaxed\">\n                  <li>\u2022 Edge bevel angle verification<\/li>\n                  <li>\u2022 Finger pitch and connector tolerance review<\/li>\n                  <li>\u2022 Gold plating thickness validation based on connector use requirements<\/li>\n                  \n                  \n                <\/ul>\n              <\/div>\n\n              <button type=\"button\" data-product=\"Golden Finger Double Layer FR4 PCB\" class=\"quote-open w-full px-5 py-3 bg-primary hover:bg-primary-dark text-white rounded-xl font-semibold transition-all\" onclick=\"openInquiry()\">\n                Quote This Product\n              <\/button>\n            <\/div>\n          <\/article>\n\n          <!-- LED FR4 -->\n          <article class=\"bg-white rounded-3xl border border-slate-200 hover:border-primary\/40 hover:shadow-xl transition-all overflow-hidden\">\n            <div class=\"p-4\">\n              <div class=\"image-card h-56\">\n                <span class=\"image-tag\">LED Control<\/span>\n                <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/2-LED-Tube-light-SMT-PCB-scaled.webp\" alt=\"Double sided LED FR4 PCB product photo\" loading=\"lazy\" \/>\n              <\/div>\n            <\/div>\n\n            <div class=\"p-6 pt-2\">\n              <div class=\"text-xs font-bold text-primary uppercase tracking-wider mb-2\">YC-DF4-LED<\/div>\n              <h3 class=\"text-xl font-bold text-neutral-950 mb-3\">Double Sided LED FR4 PCB<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed mb-5\">\n                Double sided FR4 PCB for LED control circuits, LED driver modules, lighting interfaces, and mixed LED electronic assemblies.\n              <\/p>\n\n              <div class=\"grid grid-cols-2 gap-3 text-sm mb-5\">\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Mask<\/span><strong>White Ink<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Finish<\/span><strong>OSP \/ HASL \/ ENIG<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Form<\/span><strong>Panel \/ V-Cut<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Service<\/span><strong>PCB \/ PCBA<\/strong><\/div>\n              <\/div>\n\n              <div class=\"p-4 rounded-2xl bg-primary-light border border-primary\/20 mb-5\">\n                <div class=\"text-sm font-bold text-neutral-950 mb-3\">LED Application Review Scope<\/div>\n                <ul class=\"space-y-2 text-sm text-slate-700 leading-relaxed\">\n                  <li>\u2022 High-reflectance solder mask for LED photometric performance<\/li>\n                  <li>\u2022 LED polarity and solder pad verification<\/li>\n                  <li>\u2022 Thermal copper area and current path review<\/li>\n                  \n                <\/ul>\n              <\/div>\n\n              <button type=\"button\" data-product=\"Double Sided LED FR4 PCB\" class=\"quote-open w-full px-5 py-3 bg-primary hover:bg-primary-dark text-white rounded-xl font-semibold transition-all\" onclick=\"openInquiry()\">\n                Quote This Product\n              <\/button>\n            <\/div>\n          <\/article>\n\n          <!-- Communication -->\n          <article class=\"bg-white rounded-3xl border border-slate-200 hover:border-primary\/40 hover:shadow-xl transition-all overflow-hidden\">\n            <div class=\"p-4\">\n              <div class=\"image-card h-56\">\n                <span class=\"image-tag\">Communication<\/span>\n                <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/14Edge-Connector-Gold-Plated-PCB-scaled.webp\" alt=\"Communication electronics double sided FR4 PCB product photo\" loading=\"lazy\" \/>\n              <\/div>\n            <\/div>\n\n            <div class=\"p-6 pt-2\">\n              <div class=\"text-xs font-bold text-primary uppercase tracking-wider mb-2\">YC-DF4-COM<\/div>\n              <h3 class=\"text-xl font-bold text-neutral-950 mb-3\">Communication Electronics FR4 PCB<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed mb-5\">\n                Double sided FR4 PCB for communication interface boards, signal modules, adapter boards, and low-to-medium complexity electronic products.\n              <\/p>\n\n              <div class=\"grid grid-cols-2 gap-3 text-sm mb-5\">\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Layer<\/span><strong>2L \/ 4L Option<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Finish<\/span><strong>OSP \/ ENIG<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Review<\/span><strong>Signal Path<\/strong><\/div>\n                <div class=\"p-3 bg-slate-50 rounded-xl\"><span class=\"block text-slate-500\">Service<\/span><strong>PCB \/ PCBA<\/strong><\/div>\n              <\/div>\n\n              <div class=\"p-4 rounded-2xl bg-primary-light border border-primary\/20 mb-5\">\n                <div class=\"text-sm font-bold text-neutral-950 mb-3\">Signal Design Review Scope<\/div>\n                <ul class=\"space-y-2 text-sm text-slate-700 leading-relaxed\">\n                  \n                  \n                  <li>\u2022 Routing density assessment for 2-layer versus 4-layer conversion<\/li>\n                  <li>\u2022 Surface finish selection for SMT pad reliability and storage stability<\/li>\n                <\/ul>\n              <\/div>\n\n              <button type=\"button\" data-product=\"Communication Electronics FR4 PCB\" class=\"quote-open w-full px-5 py-3 bg-primary hover:bg-primary-dark text-white rounded-xl font-semibold transition-all\" onclick=\"openInquiry()\">\n                Quote This Product\n              <\/button>\n            <\/div>\n          <\/article>\n\n          <!-- PCBA -->\n        \n<article class=\"bg-white text-neutral-950 rounded-3xl border border-slate-200 hover:shadow-xl hover:shadow-primary\/10 transition-all overflow-hidden\">\n  <div class=\"p-4\">\n    <div class=\"image-card h-56\">\n      <span class=\"image-tag\">PCB + PCBA<\/span>\n      <img decoding=\"async\" \n        src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/5Automotive-PCB-Assembly-with-surface-Mount-SMT-Through-Hole-DIP-scaled.webp\" \n        alt=\"Double sided FR4 PCB assembly product photo\" \n        loading=\"lazy\" \n      \/>\n    <\/div>\n  <\/div>\n\n  <div class=\"p-6 pt-2\">\n    <div class=\"text-xs font-bold text-primary uppercase tracking-wider mb-2\">\n      YC-DF4-PCBA\n    <\/div>\n\n    <h3 class=\"text-xl font-bold text-neutral-950 mb-3\">\n      Double Sided FR4 PCB Assembly\n    <\/h3>\n\n    <p class=\"text-sm text-slate-600 leading-relaxed mb-5\">\n      Double sided PCB fabrication plus component sourcing, SMT, DIP, functional testing, and packing for finished electronic boards.\n    <\/p>\n\n    <div class=\"grid grid-cols-2 gap-3 text-sm mb-5\">\n      <div class=\"p-3 bg-slate-50 border border-slate-100 rounded-xl\">\n        <span class=\"block text-slate-500\">Files<\/span>\n        <strong class=\"text-neutral-950\">Gerber + BOM<\/strong>\n      <\/div>\n\n      <div class=\"p-3 bg-slate-50 border border-slate-100 rounded-xl\">\n        <span class=\"block text-slate-500\">Assembly<\/span>\n        <strong class=\"text-neutral-950\">SMT \/ DIP<\/strong>\n      <\/div>\n\n      <div class=\"p-3 bg-slate-50 border border-slate-100 rounded-xl\">\n        <span class=\"block text-slate-500\">Testing<\/span>\n        <strong class=\"text-neutral-950\">FCT \/ Visual<\/strong>\n      <\/div>\n\n      <div class=\"p-3 bg-slate-50 border border-slate-100 rounded-xl\">\n        <span class=\"block text-slate-500\">Packing<\/span>\n        <strong class=\"text-neutral-950\">Custom<\/strong>\n      <\/div>\n    <\/div>\n\n<div class=\"p-4 rounded-2xl bg-primary-light border border-primary\/20 mb-5\">\n  <div class=\"text-sm font-bold text-neutral-950 mb-3\">\n    PCBA Review Scope\n  <\/div>\n\n  <ul class=\"space-y-2 text-sm text-slate-700 leading-relaxed\">\n    <li>\u2022 BOM validation and component sourcing feasibility<\/li>\n    <li>\u2022 SMT \/ DIP process sequence review<\/li>\n    <li>\u2022 Functional testing and packing method confirmation<\/li>\n  <\/ul>\n<\/div>\n\n <button \n      type=\"button\" \n      data-product=\"Double Sided FR4 PCB Assembly\" \n      class=\"quote-open w-full px-5 py-3 bg-primary hover:bg-primary-dark text-white !text-white rounded-xl font-semibold transition-all\"\n     onclick=\"openInquiry()\">\n      Quote This Product\n    <\/button>\n  <\/div>\n<\/article>\n\n\n\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Product Photo Gallery -->\n    <section class=\"py-24 bg-white\">\n      <style>\n  .photo-block-clean {\n    overflow: hidden;\n    border-radius: 1.5rem;\n    background: #ffffff;\n    border: 1px solid #e2e8f0;\n    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);\n  }\n\n  .photo-block-clean .photo-image {\n    height: 260px;\n    overflow: hidden;\n    background: #f8fafc;\n  }\n\n  .photo-block-clean .photo-image img {\n    width: 100%;\n    height: 100%;\n    object-fit: cover;\n    display: block;\n  }\n\n  .photo-block-clean .photo-caption-clean {\n    position: static;\n    background: #ffffff;\n    padding: 20px;\n    border-top: 1px solid #f1f5f9;\n  }\n\n  @media (max-width: 768px) {\n    .photo-block-clean .photo-image {\n      height: 240px;\n    }\n  }\n<\/style>\n\n<div class=\"container mx-auto px-6\">\n  <div class=\"flex flex-col lg:flex-row lg:items-end lg:justify-between gap-8 mb-12\">\n    <div class=\"max-w-3xl\">\n      <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n        Product Photos\n      <\/div>\n\n      <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n        Double Sided FR4 PCB Image Gallery\n      <\/h2>\n\n      \n    <\/div>\n\n    <button\n      type=\"button\"\n      data-product=\"Double Sided FR4 PCB Photo Gallery\"\n      class=\"quote-open px-6 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\"\n     onclick=\"openInquiry()\">\n      Request Similar PCB\n    <\/button>\n  <\/div>\n\n  <div class=\"grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6\">\n    <div class=\"photo-block-clean\">\n      <div class=\"photo-image\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/02\/green-pcb-board-10.jpg\"\n          alt=\"Standard green double sided FR4 PCB product photo\"\n          loading=\"lazy\"\n        \/>\n      <\/div>\n\n      <div class=\"photo-caption-clean\">\n        <h3 class=\"font-bold text-neutral-950 mb-1\">\n          Standard 2-Layer FR4 PCB\n        <\/h3>\n        <p class=\"text-sm text-slate-600\">\n          Green solder mask, PTH vias, HASL \/ OSP \/ ENIG options.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"photo-block-clean\">\n      <div class=\"photo-image\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/10Gold-Finger-16-Layer-PCB-scaled.webp\"\n          alt=\"Golden finger double sided FR4 PCB product photo\"\n          loading=\"lazy\"\n        \/>\n      <\/div>\n\n      <div class=\"photo-caption-clean\">\n        <h3 class=\"font-bold text-neutral-950 mb-1\">\n          Golden Finger FR4 PCB\n        <\/h3>\n        <p class=\"text-sm text-slate-600\">\n          Edge connector board with ENIG or gold finger process.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"photo-block-clean\">\n      <div class=\"photo-image\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/\u9ad8\u5bfc\u70ed-V\u7a7f-\u94dd\u57fa\u677f\u3002-scaled.webp\"\n          alt=\"White solder mask double sided LED FR4 PCB product photo\"\n          loading=\"lazy\"\n        \/>\n      <\/div>\n\n      <div class=\"photo-caption-clean\">\n        <h3 class=\"font-bold text-neutral-950 mb-1\">\n          White LED FR4 PCB\n        <\/h3>\n        <p class=\"text-sm text-slate-600\">\n          High-reflectance solder mask for LED control and lighting modules.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"photo-block-clean\">\n      <div class=\"photo-image\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/01\/circuit-board-8.jpg\"\n          alt=\"Double sided FR4 PCB assembly product photo\"\n          loading=\"lazy\"\n        \/>\n      <\/div>\n\n      <div class=\"photo-caption-clean\">\n        <h3 class=\"font-bold text-neutral-950 mb-1\">\n          Double Sided FR4 PCBA\n        <\/h3>\n        <p class=\"text-sm text-slate-600\">\n          PCB fabrication plus SMT, DIP, functional testing, and packing.\n        <\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n    <\/section>\n\n    <!-- Comparison Table -->\n    <section id=\"comparison-table\" class=\"py-24 bg-white\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"max-w-3xl mb-12\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Procurement Table\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            Compare Double Sided FR4 PCB Parameters\n          <\/h2>\n\n          <p class=\"text-slate-600 leading-relaxed\">\n            This table is designed for engineering buyers. It shows product type, material, via structure, solder mask, finish, forming method, lead time, MOQ, and quote entry in one view.\n          <\/p>\n        <\/div>\n\n        <div class=\"bg-white rounded-[2rem] border border-slate-200 shadow-xl overflow-hidden\">\n          <div class=\"overflow-x-auto table-wrap\">\n            <table class=\"product-table min-w-[1780px] w-full text-left\">\n              <thead class=\"bg-slate-50 border-b border-slate-200\">\n                <tr>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Image<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Product \/ Part No.<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Base \/ Type<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Layer<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Via \/ Hole<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Copper<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Trace \/ Space<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Solder Mask<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Surface Finish<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Forming<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Lead Time<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">MOQ<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Typical Application<\/th>\n                  <th class=\"px-5 py-4 text-xs font-bold uppercase tracking-wider text-slate-500 text-right\">Quote<\/th>\n                <\/tr>\n              <\/thead>\n\n              <tbody class=\"divide-y divide-slate-200\">\n                <tr class=\"hover:bg-primary-light\/30 transition-colors\">\n                  <td class=\"px-5 py-5\"><div class=\"image-card w-28 h-24\"><img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/07\/Double-sided-FR4\u53cc\u9762-FR4.jpg\" alt=\"Standard double sided FR4 PCB thumbnail\" loading=\"lazy\" \/><\/div><\/td>\n                  <td class=\"px-5 py-5\"><div class=\"font-bold text-neutral-950\">Standard Double Sided FR4 PCB<\/div><div class=\"text-sm text-primary font-semibold mt-1\">YC-DF4-001<\/div><div class=\"text-xs text-slate-400 mt-1\">General 2-layer PCB<\/div><\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Double layer FR4<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">2L<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">PTH \/ 0.30mm mechanical drill reference<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1-3oz<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">0.15mm trace \/ 0.15mm space standard; finer geometries reviewed per design complexity<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Green \/ Blue \/ Black \/ Red<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">OSP, HASL, ENIG<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">CNC Milling + V-Cut \/ Mould<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">3-5 working days<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1 pcs<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Control boards, modules, consumer electronics<\/td>\n                  <td class=\"px-5 py-5 text-right\"><button type=\"button\" data-product=\"Standard Double Sided FR4 PCB\" class=\"quote-open px-5 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">Quote<\/button><\/td>\n                <\/tr>\n\n                <tr class=\"hover:bg-primary-light\/30 transition-colors\">\n                  <td class=\"px-5 py-5\"><div class=\"image-card w-28 h-24\"><img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/9Double-Sided-Aluminum-Substrate-scaled.webp\" alt=\"Industrial control double layer FR4 PCB thumbnail\" loading=\"lazy\" \/><\/div><\/td>\n                  <td class=\"px-5 py-5\"><div class=\"font-bold text-neutral-950\">Industrial Control Double Layer FR4 PCB<\/div><div class=\"text-sm text-primary font-semibold mt-1\">YC-DF4-IC<\/div><div class=\"text-xs text-slate-400 mt-1\">Industrial control series<\/div><\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Double layer FR4<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">2L<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">PTH \/ terminal holes<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1-3oz<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Per Gerber and engineering review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Green \/ Custom<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">OSP, HASL, ENIG<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">CNC Milling + V-Cut \/ Mould<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">3-5 working days<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1 pcs <\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Relay boards, IO modules, industrial control<\/td>\n                  <td class=\"px-5 py-5 text-right\"><button type=\"button\" data-product=\"Industrial Control Double Layer FR4 PCB\" class=\"quote-open px-5 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">Quote<\/button><\/td>\n                <\/tr>\n\n                <tr class=\"hover:bg-primary-light\/30 transition-colors\">\n                  <td class=\"px-5 py-5\"><div class=\"image-card w-28 h-24\"><img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/01\/circuit-board-19.jpg\" alt=\"Golden finger double layer FR4 PCB thumbnail\" loading=\"lazy\" \/><\/div><\/td>\n                  <td class=\"px-5 py-5\"><div class=\"font-bold text-neutral-950\">Golden Finger Double Layer FR4 PCB<\/div><div class=\"text-sm text-primary font-semibold mt-1\">YC-DF4-GF<\/div><div class=\"text-xs text-slate-400 mt-1\">Edge connector PCB<\/div><\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Double layer FR4 \/ Golden finger<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">2L<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">PTH \/ edge connector design<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1-2oz<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Per connector pitch and engineering review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Green \/ Black<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">ENIG \/ gold finger process<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">CNC Milling \/ Edge bevel<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">3-5 working days<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1 pcs<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Plug-in modules, interface boards, control cards<\/td>\n                  <td class=\"px-5 py-5 text-right\"><button type=\"button\" data-product=\"Golden Finger Double Layer FR4 PCB\" class=\"quote-open px-5 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">Quote<\/button><\/td>\n                <\/tr>\n\n                <tr class=\"hover:bg-primary-light\/30 transition-colors\">\n                  <td class=\"px-5 py-5\"><div class=\"image-card w-28 h-24\"><img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/13Impedance-Control-8oz-Copper-30-Layer-PCB-scaled.webp\" alt=\"Double sided LED FR4 PCB thumbnail\" loading=\"lazy\" \/><\/div><\/td>\n                  <td class=\"px-5 py-5\"><div class=\"font-bold text-neutral-950\">Double Sided LED FR4 PCB<\/div><div class=\"text-sm text-primary font-semibold mt-1\">YC-DF4-LED<\/div><div class=\"text-xs text-slate-400 mt-1\">LED control \/ LED driver board<\/div><\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Double layer FR4<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">2L<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">PTH<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1-2oz<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">0.15mm trace \/ 0.15mm space standard; finer geometries reviewed per design complexity<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">High-reflectance white \/ silver ink<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">OSP, HASL, ENIG<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">CNC Milling + V-Cut \/ Mould<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">3-5 working days<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1 pcs <\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">LED driver, lighting control, LED module<\/td>\n                  <td class=\"px-5 py-5 text-right\"><button type=\"button\" data-product=\"Double Sided LED FR4 PCB\" class=\"quote-open px-5 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">Quote<\/button><\/td>\n                <\/tr>\n\n                <tr class=\"hover:bg-primary-light\/30 transition-colors\">\n                  <td class=\"px-5 py-5\"><div class=\"image-card w-28 h-24\"><img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/04\/\u53cc\u9762FR4.jpg\" alt=\"Communication electronics FR4 PCB thumbnail\" loading=\"lazy\" \/><\/div><\/td>\n                  <td class=\"px-5 py-5\"><div class=\"font-bold text-neutral-950\">Communication Electronics FR4 PCB<\/div><div class=\"text-sm text-primary font-semibold mt-1\">YC-DF4-COM<\/div><div class=\"text-xs text-slate-400 mt-1\">Communication interface board<\/div><\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Double layer FR4 \/ 4L option<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">2L \/ 4L review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">PTH \/ signal via<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1oz typical<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Per Gerber and engineering review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Green \/ Black<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">OSP \/ ENIG<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">CNC Milling \/ Panel<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">3-5 working days<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1 pcs<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Interface board, signal module, adapter board<\/td>\n                  <td class=\"px-5 py-5 text-right\"><button type=\"button\" data-product=\"Communication Electronics FR4 PCB\" class=\"quote-open px-5 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">Quote<\/button><\/td>\n                <\/tr>\n\n                <tr class=\"hover:bg-primary-light\/30 transition-colors\">\n                  <td class=\"px-5 py-5\"><div class=\"image-card w-28 h-24\"><img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2024\/12\/PCB-Board-32.jpg\" alt=\"Double sided FR4 PCB assembly thumbnail\" loading=\"lazy\" \/><\/div><\/td>\n                  <td class=\"px-5 py-5\"><div class=\"font-bold text-neutral-950\">Double Sided FR4 PCB Assembly<\/div><div class=\"text-sm text-primary font-semibold mt-1\">YC-DF4-PCBA<\/div><div class=\"text-xs text-slate-400 mt-1\">PCB + BOM + Assembly + Test<\/div><\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">FR4 PCB \/ PCBA<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">2L<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Per Gerber and engineering review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Per Gerber and engineering review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Per Gerber and engineering review<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Custom<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">OSP, HASL, ENIG<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Panel \/ Finished board<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">By BOM + quantity<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">1 pcs<\/td>\n                  <td class=\"px-5 py-5 text-slate-700\">Finished control boards, LED PCBA, sensor PCBA<\/td>\n                  <td class=\"px-5 py-5 text-right\"><button type=\"button\" data-product=\"Double Sided FR4 PCB Assembly\" class=\"quote-open px-5 py-3 rounded-xl bg-primary hover:bg-primary-dark text-white font-semibold transition-all\" onclick=\"openInquiry()\">Quote<\/button><\/td>\n                <\/tr>\n              <\/tbody>\n            <\/table>\n          <\/div>\n\n          <div class=\"px-6 py-4 bg-slate-50 border-t border-slate-200 text-sm text-slate-500 flex flex-col md:flex-row md:items-center md:justify-between gap-3\">\n            <p>\n              Final capability depends on board thickness, copper weight, drill density, via structure, solder mask bridge, surface finish, and panel design.\n            <\/p>\n            <button type=\"button\" data-product=\"Custom Double Sided FR4 PCB Requirement\" class=\"quote-open text-primary font-bold hover:underline text-left md:text-right\" onclick=\"openInquiry()\">\n              Send custom requirement \u2192\n            <\/button>\n          <\/div>\n        <\/div>\n\n        <!-- Process Limit Notes -->\n        <div class=\"mt-6 p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n          <h3 class=\"font-heading text-2xl font-bold text-neutral-950 mb-4\">\n            Process Limit Notes for Double Sided FR4 PCB\n          <\/h3>\n\n          <div class=\"grid grid-cols-1 md:grid-cols-3 gap-5 text-sm text-slate-600 leading-relaxed\">\n            <div>\n              <div class=\"font-bold text-neutral-950 mb-2\">Plated Through Holes<\/div>\n              <p>\n                Double sided FR4 PCB uses plated through holes to connect top and bottom copper layers. Drill size, annular ring, copper plating, and via clearance are reviewed during DFM preparation.\n              <\/p>\n            <\/div>\n\n            <div>\n              <div class=\"font-bold text-neutral-950 mb-2\">Trace \/ Space<\/div>\n              <p>\n                0.15 \/ 0.15mm is the standard reference for stable production. Smaller values or dense routing should be reviewed based on copper weight, solder mask bridge, and etching compensation.\n              <\/p>\n            <\/div>\n\n            <div>\n              <div class=\"font-bold text-neutral-950 mb-2\">Golden Finger<\/div>\n              <p>\n                Golden finger boards require additional review of bevel angle, edge connector tolerance, pad pitch, surface finish, and insertion durability requirements.\n              <\/p>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Engineering Limits Table -->\n    <section class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"max-w-3xl mb-12\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Engineering Limits\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            2-Layer FR4 PCB Design Capability Reference\n          <\/h2>\n\n          <p class=\"text-slate-600 leading-relaxed\">\n            The following values are reference ranges for quotation screening. Final manufacturability depends on copper weight, board thickness, via density, solder mask bridge, hole tolerance, and surface finish.\n          <\/p>\n        <\/div>\n\n        <div class=\"bg-white rounded-[2rem] border border-slate-200 shadow-xl overflow-hidden\">\n          <div class=\"overflow-x-auto\">\n            <table class=\"min-w-[980px] w-full text-left\">\n              <thead class=\"bg-slate-50 border-b border-slate-200\">\n                <tr>\n                  <th class=\"px-6 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Parameter<\/th>\n                  <th class=\"px-6 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Standard Capability<\/th>\n                  <th class=\"px-6 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Advanced \/ Review Required<\/th>\n                  <th class=\"px-6 py-4 text-xs font-bold uppercase tracking-wider text-slate-500\">Engineering Note<\/th>\n                <\/tr>\n              <\/thead>\n              <tbody class=\"divide-y divide-slate-200\">\n                <tr>\n                  <td class=\"px-6 py-5 font-semibold text-neutral-950\">Min Trace \/ Space<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">0.15 \/ 0.15 mm<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Below 0.15 mm by review<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Affected by copper weight and etching compensation.<\/td>\n                <\/tr>\n                <tr>\n                  <td class=\"px-6 py-5 font-semibold text-neutral-950\">Mechanical Drill<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">0.30 mm reference<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Smaller holes by review<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Finished hole tolerance and plating reliability must be checked.<\/td>\n                <\/tr>\n                <tr>\n                  <td class=\"px-6 py-5 font-semibold text-neutral-950\">Board Thickness<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">0.6 - 2.4 mm common range<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">0.4 - 3.2 mm by review<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Thin and thick boards require additional process confirmation.<\/td>\n                <\/tr>\n                <tr>\n                  <td class=\"px-6 py-5 font-semibold text-neutral-950\">Copper Weight<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">1oz standard<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">2oz \/ 3oz by design review<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Heavy copper affects trace spacing and etching tolerance.<\/td>\n                <\/tr>\n                <tr>\n                  <td class=\"px-6 py-5 font-semibold text-neutral-950\">Surface Finish<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">HASL \/ OSP<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">ENIG \/ golden finger<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">ENIG is preferred for flat SMT pads or connector applications.<\/td>\n                <\/tr>\n                <tr>\n                  <td class=\"px-6 py-5 font-semibold text-neutral-950\">Panelization<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Individual \/ V-Cut \/ tab routing<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Custom mould forming by review<\/td>\n                  <td class=\"px-6 py-5 text-slate-700\">Panel design affects SMT efficiency, yield, and shipment safety.<\/td>\n                <\/tr>\n              <\/tbody>\n            <\/table>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Manufacturing Capability -->\n    <section class=\"py-24 bg-white\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"grid grid-cols-1 lg:grid-cols-2 gap-14 items-center\">\n\n          <div>\n            <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n              Manufacturing Capability\n            <\/div>\n\n            <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-6\">\n              2-Layer FR4 PCB Production from Gerber and Drill Files.\n            <\/h2>\n\n            <p class=\"text-slate-600 leading-relaxed mb-6\">\n              Double sided FR4 production requires controlled laminate selection, accurate drilling, reliable through-hole plating, top-bottom registration, solder mask alignment, surface finish stability, electrical net testing, and final visual inspection.\n            <\/p>\n\n            <p class=\"text-slate-600 leading-relaxed mb-8\">\n              YC PCB supports standard double sided FR4 PCB, industrial control boards, golden finger boards, LED FR4 control boards, communication interface boards, and double sided PCBA production.\n            <\/p>\n\n            <div class=\"grid grid-cols-2 gap-4\">\n              <div class=\"p-5 bg-white rounded-2xl border border-slate-200\">\n                <div class=\"text-2xl font-bold text-neutral-950\">PTH<\/div>\n                <div class=\"text-sm text-slate-500 mt-1\">Plated Through-Hole Vias<\/div>\n              <\/div>\n              <div class=\"p-5 bg-white rounded-2xl border border-slate-200\">\n                <div class=\"text-2xl font-bold text-neutral-950\">0.15mm<\/div>\n                <div class=\"text-sm text-slate-500 mt-1\">Trace \/ Space Reference<\/div>\n              <\/div>\n              <div class=\"p-5 bg-white rounded-2xl border border-slate-200\">\n                <div class=\"text-2xl font-bold text-neutral-950\">0.30mm<\/div>\n                <div class=\"text-sm text-slate-500 mt-1\">Mechanical Drill Reference<\/div>\n              <\/div>\n              <div class=\"p-5 bg-white rounded-2xl border border-slate-200\">\n                <div class=\"text-2xl font-bold text-neutral-950\">100%<\/div>\n                <div class=\"text-sm text-slate-500 mt-1\">Electrical Test Available<\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n\n          <div class=\"glass-card rounded-[2rem] p-8 shadow-xl green-glow\">\n            <h3 class=\"font-heading text-3xl font-bold text-neutral-950 mb-8\">General Capability Range<\/h3>\n\n            <div class=\"space-y-1\">\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">PCB Type<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">Double Sided FR4 PCB<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Layer Count<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">2 Layers<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Material<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">FR4 \/ FR4 Epoxy Laminate<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Board Thickness<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">0.4mm - 3.2mm standard FR4<\/span>\n              <\/div>\n              <div class=\"py-4 border-b border-slate-200\">\n                <div class=\"text-sm text-slate-500 mb-2\">Thickness Note<\/div>\n                <p class=\"text-sm text-slate-600 leading-relaxed\">\n                  Thickness selection depends on copper weight, via diameter, finished hole tolerance, and mechanical strength requirements. Consult engineering for specifications below 0.6mm or above 2.4mm.\n                <\/p>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Copper Thickness<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">1oz - 3oz<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Solder Mask<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">Green, White, Black, Blue, Red, High-Reflectance Ink<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Surface Finish<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">OSP, HASL, Lead-Free HASL, ENIG<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4 border-b border-slate-200\">\n                <span class=\"text-slate-500\">Forming<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">CNC Milling, V-Cut, Tab Routing, Mould Forming<\/span>\n              <\/div>\n              <div class=\"flex justify-between gap-6 py-4\">\n                <span class=\"text-slate-500\">Optional Service<\/span>\n                <span class=\"font-semibold text-neutral-950 text-right\">SMT, DIP, FCT, Packing<\/span>\n              <\/div>\n            <\/div>\n          <\/div>\n\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Delivery Capability Proof -->\n    <section class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"grid grid-cols-1 lg:grid-cols-2 gap-14 items-center\">\n          <div>\n            <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n              Delivery Capability\n            <\/div>\n\n            <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-6\">\n              Prototype and Batch Delivery Timeline\n            <\/h2>\n\n            <p class=\"text-slate-600 leading-relaxed mb-6\">\n              Lead time is confirmed after Gerber review, material availability check, surface finish confirmation, and payment release. Prototype delivery and batch production are managed through separate scheduling workflows.\n            <\/p>\n\n            \n          <\/div>\n\n          <div class=\"grid grid-cols-1 sm:grid-cols-2 gap-5\">\n            <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n              <div class=\"text-3xl font-bold text-primary mb-2\">3-5 Days<\/div>\n              <h3 class=\"font-bold text-neutral-950 mb-2\">Prototype Delivery<\/h3>\n              <p class=\"text-sm text-slate-600\">For approved 2-layer FR4 designs using standard materials and available production capacity.<\/p>\n            <\/div>\n\n            <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n              <div class=\"text-3xl font-bold text-primary mb-2\">7-12 Days<\/div>\n              <h3 class=\"font-bold text-neutral-950 mb-2\">Batch Production<\/h3>\n              <p class=\"text-sm text-slate-600\">Typical range after file approval, payment release, and confirmed production route.<\/p>\n            <\/div>\n\n            <div class=\"photo-block h-64 sm:col-span-2\">\n              <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/DHL-\u53d1\u8d27.png\" alt=\"PCB shipping and packing photo placeholder\" loading=\"lazy\" \/>\n              <div class=\"photo-caption\">\n                <h3 class=\"font-bold text-neutral-950 mb-1\">Recent Shipping Record<\/h3>\n                \n              <\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Workshop & Process Images -->\n    <section class=\"py-24 bg-white\">\n      <section class=\"py-24 bg-white\">\n  <div class=\"container mx-auto px-6\">\n    <div class=\"text-center max-w-3xl mx-auto mb-16\">\n      <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n        Manufacturing Process\n      <\/div>\n\n      <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n        Production Images for Double Sided FR4 PCB\n      <\/h2>\n\n      \n    <\/div>\n\n    <div class=\"grid grid-cols-1 md:grid-cols-3 gap-6 items-stretch\">\n\n      <!-- Image 1 -->\n      <div class=\"photo-block h-[360px] md:h-[420px]\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/2\uff0ccutting-machine-scaled.webp\"\n          alt=\"PCB manufacturing workshop for double sided FR4 PCB production\"\n          loading=\"lazy\"\n          class=\"w-full h-full object-cover object-center\"\n        \/>\n\n        <div class=\"photo-caption small-caption\">\n          \n          <h3 class=\"font-bold text-neutral-950 text-xl mb-2\">\n            PCB Production Line\n          <\/h3>\n          <p class=\"text-sm text-slate-600\">\n            Real factory photo of drilling, or routing workshop.\n          <\/p>\n        <\/div>\n      <\/div>\n\n      <!-- Image 2 -->\n      <div class=\"photo-block h-[360px] md:h-[420px]\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/20\uff0cdrilling-machine-scaled.webp\"\n          alt=\"PCB drilling process for double sided FR4 PCB\"\n          loading=\"lazy\"\n          class=\"w-full h-full object-cover object-center\"\n        \/>\n\n        <div class=\"photo-caption small-caption\">\n          <h3 class=\"font-bold text-neutral-950 text-xl mb-2\">\n            Drilling & PTH\n          <\/h3>\n          <p class=\"text-sm text-slate-600\">\n            Mechanical drilling and plated through-hole preparation.\n          <\/p>\n        <\/div>\n      <\/div>\n\n      <!-- Image 3 -->\n      <div class=\"photo-block h-[360px] md:h-[420px]\">\n        <img decoding=\"async\"\n          src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/18\uff0cCNC-machine--scaled.webp\"\n          alt=\"PCB routing and V-Cut forming process\"\n          loading=\"lazy\"\n          class=\"w-full h-full object-cover object-center\"\n        \/>\n\n        <div class=\"photo-caption small-caption\">\n          <h3 class=\"font-bold text-neutral-950 text-xl mb-2\">\n            Routing & V-Cut\n          <\/h3>\n          <p class=\"text-sm text-slate-600\">\n            CNC milling, V-Cut, tab routing, and custom panel forming.\n          <\/p>\n        <\/div>\n      <\/div>\n\n    <\/div>\n  <\/div>\n<\/section>\n    <\/section>\n\n    <!-- DFM Review -->\n    <section class=\"py-24 bg-white\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"grid grid-cols-1 lg:grid-cols-2 gap-14 items-center\">\n          <div>\n            <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n              Engineering Review\n            <\/div>\n\n            <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-6\">\n              Pre-Production Design for Manufacturability Review\n            <\/h2>\n\n            <p class=\"text-slate-600 leading-relaxed mb-6\">\n              DFM review is part of the standard quotation and production preparation process. Before fabrication, our engineering team reviews Gerber files, drill files, via structures, annular rings, copper spacing, solder mask clearance, panelization method, surface finish, and assembly-related risks.\n            <\/p>\n\n            <p class=\"text-slate-600 leading-relaxed\">\n              If design modification, stack-up adjustment, golden finger requirement, or assembly engineering support is needed, we will confirm details before proceeding.\n            <\/p>\n          <\/div>\n\n          <div class=\"grid grid-cols-1 sm:grid-cols-2 gap-5\">\n            <div class=\"p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n              <div class=\"text-2xl font-bold text-primary mb-2\">Within 2h<\/div>\n              <h3 class=\"font-bold text-neutral-950 mb-2\">DFM Feedback<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed\">\n                Typical response time after receiving complete Gerber and drill files.\n              <\/p>\n            <\/div>\n\n            <div class=\"p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n              <div class=\"text-2xl font-bold text-primary mb-2\">PTH Check<\/div>\n              <h3 class=\"font-bold text-neutral-950 mb-2\">Via and Drill Review<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed\">\n                Drill size, annular ring, via clearance, slot holes, and plated through-hole reliability can be reviewed.\n              <\/p>\n            <\/div>\n\n            <div class=\"p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n              <div class=\"text-2xl font-bold text-primary mb-2\">Panel Check<\/div>\n              <h3 class=\"font-bold text-neutral-950 mb-2\">V-Cut \/ Routing Review<\/h3>\n              <p class=\"text-sm text-slate-600 leading-relaxed\">\n                Board outline, V-Cut, tab routing, tooling holes, and breakaway design can be checked before production.\n              <\/p>\n            <\/div>\n\n            <div class=\"p-6 rounded-3xl bg-primary text-white relative overflow-hidden\">\n              <div class=\"relative z-10\">\n                <div class=\"text-2xl font-bold mb-2\">PCBA Review<\/div>\n                <h3 class=\"font-bold mb-2\">Assembly Check<\/h3>\n                <p class=\"text-sm text-white\/85 leading-relaxed\">\n                  BOM, polarity, package, SMT\/DIP process, test method, and packing requirement can be reviewed when assembly is required.\n                <\/p>\n              <\/div>\n              <div class=\"absolute -right-10 -bottom-10 w-32 h-32 bg-white\/20 rounded-full blur-2xl\"><\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- DFM Report Sample -->\n    <section class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"grid grid-cols-1 lg:grid-cols-2 gap-14 items-center\">\n          <div>\n            <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n              DFM Report Example\n            <\/div>\n\n            <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-6\">\n              What Buyers Receive After DFM Review\n            <\/h2>\n\n            <p class=\"text-slate-600 leading-relaxed mb-6\">\n              A DFM review helps identify manufacturability risks before production release. The review can include hole size risk, annular ring issues, solder mask bridge concerns, copper clearance, panelization suggestions, and surface finish recommendations.\n            <\/p>\n\n            \n          <\/div>\n\n          <div class=\"bg-white rounded-[2rem] border border-slate-200 shadow-xl overflow-hidden\">\n            <div class=\"image-card h-[520px] rounded-none border-0\">\n              <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/\u5de5\u7a0b\u5e08\u5ba1\u6838\u8d44\u6599.jpg\" alt=\"DFM report sample screenshot placeholder\" loading=\"lazy\" \/>\n            <\/div>\n            <div class=\"p-6\">\n              <h3 class=\"font-bold text-neutral-950 mb-3\">Sample DFM Review Items<\/h3>\n              <ul class=\"space-y-2 text-sm text-slate-600\">\n                <li>\u2022 Gerber and drill file completeness<\/li>\n                <li>\u2022 Minimum trace \/ spacing review<\/li>\n                <li>\u2022 Annular ring and PTH via risk<\/li>\n                <li>\u2022 Solder mask bridge and opening check<\/li>\n                <li>\u2022 Panelization and routing suggestion<\/li>\n                <li>\u2022 Cost-impact note when process changes are required<\/li>\n              <\/ul>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Quality Inspection Images -->\n    <style>\n  #qc-light-section .photo-caption-light {\n    background: rgba(255, 255, 255, 0.92);\n    color: #0f172a;\n    backdrop-filter: blur(10px);\n    border: 1px solid rgba(226, 232, 240, 0.9);\n  }\n\n  #qc-light-section .photo-caption-light h3 {\n    color: #0f172a;\n  }\n<\/style>\n\n<section id=\"qc-light-section\" class=\"py-24 bg-gradient-to-br from-emerald-50 via-white to-slate-50 text-neutral-950 relative overflow-hidden\">\n  <div class=\"absolute inset-0 bg-grid-pattern opacity-20\"><\/div>\n  <div class=\"absolute top-0 right-0 w-96 h-96 bg-emerald-200\/40 rounded-full blur-3xl\"><\/div>\n  <div class=\"absolute -bottom-32 -left-32 w-96 h-96 bg-primary\/10 rounded-full blur-3xl\"><\/div>\n\n  <div class=\"container mx-auto px-6 relative z-10\">\n    <div class=\"grid grid-cols-1 lg:grid-cols-2 gap-14 items-center\">\n      <div>\n        <div class=\"inline-flex px-4 py-2 rounded-full bg-emerald-100 text-primary font-semibold text-sm mb-6\">\n          Inspection Photos\n        <\/div>\n\n        <h2 class=\"font-heading text-4xl md:text-5xl font-bold mb-6 text-neutral-950\">\n          Visual Proof of PCB Quality Control\n        <\/h2>\n\n        <div class=\"grid grid-cols-1 sm:grid-cols-2 gap-4\">\n          <div class=\"p-5 rounded-2xl bg-white\/80 border border-emerald-100 shadow-sm\">\n            <h3 class=\"font-bold mb-2 text-neutral-950\">Automated Optical Inspection<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Verifies circuit pattern integrity, solder mask alignment, open\/short risk, and defect classification according to IPC-A-600 Class 2 acceptance references.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-5 rounded-2xl bg-white\/80 border border-emerald-100 shadow-sm\">\n            <h3 class=\"font-bold mb-2 text-neutral-950\">Electrical Test<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Net continuity and isolation are verified before packing. Test coverage depends on Gerber netlist, tooling method, and order quantity.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-5 rounded-2xl bg-white\/80 border border-emerald-100 shadow-sm\">\n            <h3 class=\"font-bold mb-2 text-neutral-950\">Visual Inspection<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Reviews solder mask, surface finish, outline, board cleanliness, and final appearance.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-5 rounded-2xl bg-white\/80 border border-emerald-100 shadow-sm\">\n            <h3 class=\"font-bold mb-2 text-neutral-950\">Final Packing<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Finished boards are packed according to shipping requirements, quantity, and customer packaging notes.\n            <\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"grid grid-cols-2 gap-5\">\n        <div class=\"photo-block h-72\">\n          <img decoding=\"async\"\n            src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/8\uff0cAOI--scaled.webp\"\n            alt=\"AOI inspection for double sided FR4 PCB\"\n            loading=\"lazy\"\n          \/>\n          <div class=\"photo-caption photo-caption-light\">\n            <h3 class=\"font-bold mb-1\">AOI Inspection<\/h3>\n          <\/div>\n        <\/div>\n\n        <div class=\"photo-block h-72 mt-10\">\n          <img decoding=\"async\"\n            src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/02\/E-test-1.jpg\"\n            alt=\"Electrical testing for double sided FR4 PCB\"\n            loading=\"lazy\"\n          \/>\n          <div class=\"photo-caption photo-caption-light\">\n            <h3 class=\"font-bold mb-1\">Electrical Test<\/h3>\n          <\/div>\n        <\/div>\n\n        <div class=\"photo-block h-72\">\n          <img decoding=\"async\"\n            src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/09\/23\uff0cFQC-scaled.webp\"\n            alt=\"PCB microscope inspection for FR4 PCB\"\n            loading=\"lazy\"\n          \/>\n          <div class=\"photo-caption photo-caption-light\">\n            <h3 class=\"font-bold mb-1\">Microscope Check<\/h3>\n          <\/div>\n        <\/div>\n\n        <div class=\"photo-block h-72 mt-10\">\n          <img decoding=\"async\"\n            src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2025\/08\/PCB-\u5305\u88c56-2.webp\"\n            alt=\"Finished double sided FR4 PCB packing\"\n            loading=\"lazy\"\n          \/>\n          <div class=\"photo-caption photo-caption-light\">\n            <h3 class=\"font-bold mb-1\">Final Packing<\/h3>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n    <!-- Certification Image Proof -->\n    <section class=\"py-24 bg-white\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"text-center max-w-3xl mx-auto mb-16\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Certification Proof\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            Certification and Compliance Documentation\n          <\/h2>\n\n          \n        <\/div>\n\n        <div class=\"grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6\">\n  <div class=\"bg-gradient-to-br from-emerald-50 via-white to-slate-50 rounded-3xl border border-emerald-100 overflow-hidden hover:shadow-xl transition-all\">\n    <div class=\"p-5 bg-emerald-50\/70 flex items-center justify-center\">\n      <img decoding=\"async\"\n        class=\"max-h-64 w-auto max-w-full object-contain rounded-2xl border border-emerald-100 bg-white\"\n        src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/ISO-9001.png\"\n        alt=\"ISO 9001 certificate image placeholder\"\n        loading=\"lazy\"\n      \/>\n    <\/div>\n\n    <div class=\"p-6\">\n      <h3 class=\"font-bold text-neutral-950 mb-2\">\n        ISO 9001 Quality Management\n      <\/h3>\n      <p class=\"text-sm text-slate-600 leading-relaxed\">\n        Quality management documentation for production workflow, process control, inspection records, and corrective action handling.\n      <\/p>\n    <\/div>\n  <\/div>\n\n  <div class=\"bg-gradient-to-br from-emerald-50 via-white to-slate-50 rounded-3xl border border-emerald-100 overflow-hidden hover:shadow-xl transition-all\">\n    <div class=\"p-5 bg-emerald-50\/70 flex items-center justify-center\">\n      <img decoding=\"async\"\n        class=\"max-h-64 w-auto max-w-full object-contain rounded-2xl border border-emerald-100 bg-white\"\n        src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/UL.png\"\n        alt=\"UL certificate image placeholder\"\n        loading=\"lazy\"\n      \/>\n    <\/div>\n\n    <div class=\"p-6\">\n      <h3 class=\"font-bold text-neutral-950 mb-2\">\n        UL Documentation Support\n      <\/h3>\n      <p class=\"text-sm text-slate-600 leading-relaxed\">\n        UL-related documentation can be provided according to project, material, laminate, and customer compliance requirements.\n      <\/p>\n    <\/div>\n  <\/div>\n\n  <div class=\"bg-gradient-to-br from-emerald-50 via-white to-slate-50 rounded-3xl border border-emerald-100 overflow-hidden hover:shadow-xl transition-all\">\n    <div class=\"p-5 bg-emerald-50\/70 flex items-center justify-center\">\n      <img decoding=\"async\"\n        class=\"max-h-64 w-auto max-w-full object-contain rounded-2xl border border-emerald-100 bg-white\"\n        src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/06\/Rohs.png\"\n        alt=\"RoHS compliance certificate image placeholder\"\n        loading=\"lazy\"\n      \/>\n    <\/div>\n\n    <div class=\"p-6\">\n      <h3 class=\"font-bold text-neutral-950 mb-2\">\n        RoHS Compliance\n      <\/h3>\n      <p class=\"text-sm text-slate-600 leading-relaxed\">\n        RoHS compliance files and material-related documents can be prepared when required for export or customer approval.\n      <\/p>\n    <\/div>\n  <\/div>\n\n  <div class=\"bg-gradient-to-br from-emerald-50 via-white to-slate-50 rounded-3xl border border-emerald-100 overflow-hidden hover:shadow-xl transition-all\">\n    <div class=\"p-5 bg-emerald-50\/70 flex items-center justify-center\">\n      <img decoding=\"async\"\n        class=\"max-h-64 w-auto max-w-full object-contain rounded-2xl border border-emerald-100 bg-white\"\n        src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/ipc.png\"\n        alt=\"PCB inspection report image placeholder\"\n        loading=\"lazy\"\n      \/>\n    <\/div>\n\n    <div class=\"p-6\">\n      <h3 class=\"font-bold text-neutral-950 mb-2\">\n        IPC Inspection Reference\n      <\/h3>\n      <p class=\"text-sm text-slate-600 leading-relaxed\">\n        Bare PCB appearance can be reviewed according to IPC-A-600 Class 2 acceptance references. PCBA workmanship can be reviewed under IPC-A-610 requirements when applicable.\n      <\/p>\n    <\/div>\n  <\/div>\n<\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Quality Documents -->\n    \n\n    <!-- Applications -->\n    <section class=\"py-24 bg-white\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"text-center max-w-3xl mx-auto mb-16\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Engineering Applications\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            Typical Use Cases for Double Sided FR4 PCB\n          <\/h2>\n\n          <p class=\"text-slate-600 leading-relaxed\">\n            Double sided FR4 PCB is selected when the design needs routing on both sides, plated through-hole interconnection, higher component density, or more stable signal and power routing than a single sided PCB.\n          <\/p>\n        <\/div>\n\n        <div class=\"grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6\">\n          <div class=\"p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Industrial Control Boards<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed mb-4\">\n              Typical configuration: 2-layer FR4, 1-3oz copper, PTH vias, terminal holes, green solder mask, HASL or ENIG finish.\n            <\/p>\n            <div class=\"text-xs font-bold text-primary\">Reliability-priority application<\/div>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Golden Finger Connector Boards<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed mb-4\">\n              Typical review points: finger pitch, bevel angle, gold finish, finished board thickness, insertion direction, and connector tolerance.\n            <\/p>\n            <div class=\"text-xs font-bold text-primary\">Connector-priority application<\/div>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-slate-50 border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">LED Driver \/ Control PCBs<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed mb-4\">\n              Typical configuration: high-reflectance solder mask option, PTH vias, panel delivery, OSP \/ HASL \/ ENIG finish, optional SMT assembly.\n            <\/p>\n            <div class=\"text-xs font-bold text-primary\">LED electronics application<\/div>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-gradient-to-br from-emerald-50 via-white to-slate-50 border border-emerald-100 text-neutral-950 relative overflow-hidden\">\n  <div class=\"relative z-10\">\n    <h3 class=\"font-bold mb-3 text-neutral-950\">\n      Communication Interface Boards\n    <\/h3>\n\n    <p class=\"text-sm text-slate-600 leading-relaxed mb-4\">\n      Typical review points: signal path, routing density, ground return, connector location, surface finish, and whether 4-layer FR4 is required.\n    <\/p>\n\n    <div class=\"text-xs font-bold text-primary\">\n  Signal-routing application\n<\/div>\n  <\/div>\n\n  <div class=\"absolute -right-10 -bottom-10 w-32 h-32 bg-emerald-200\/40 rounded-full blur-2xl\"><\/div>\n<\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Application Image Grid -->\n    <section class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"text-center max-w-3xl mx-auto mb-16\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Application Photos\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            Application Scenes for Double Sided FR4 PCB\n          <\/h2>\n\n          \n        <\/div>\n\n        <div class=\"grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6\">\n          <div class=\"photo-block h-80\">\n            <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/Industrial-Control.png\" alt=\"Double sided FR4 PCB used in industrial control boards\" loading=\"lazy\" \/>\n            <div class=\"photo-caption\">\n              <h3 class=\"font-bold text-neutral-950 mb-1\">Industrial Control<\/h3>\n              <p class=\"text-sm text-slate-600\">Relay boards, IO modules, terminal boards, and sensor interfaces.<\/p>\n            <\/div>\n          <\/div>\n\n          <div class=\"photo-block h-80\">\n            <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/LED-Driver-Modules.png\" alt=\"Double sided FR4 PCB used in LED driver modules\" loading=\"lazy\" \/>\n            <div class=\"photo-caption\">\n              <h3 class=\"font-bold text-neutral-950 mb-1\">LED Driver Modules<\/h3>\n              <p class=\"text-sm text-slate-600\">Lighting control boards, LED driver PCBs, and LED electronic modules.<\/p>\n            <\/div>\n          <\/div>\n\n          <div class=\"photo-block h-80\">\n            <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/Communication-Electronics.png\" alt=\"Double sided FR4 PCB used in communication electronics\" loading=\"lazy\" \/>\n            <div class=\"photo-caption\">\n              <h3 class=\"font-bold text-neutral-950 mb-1\">Communication Electronics<\/h3>\n              <p class=\"text-sm text-slate-600\">Interface boards, adapter boards, signal modules, and communication devices.<\/p>\n            <\/div>\n          <\/div>\n\n          <div class=\"photo-block h-80\">\n            <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/Golden-Finger-Modules.png\" alt=\"Golden finger double sided FR4 PCB used in plug-in modules\" loading=\"lazy\" \/>\n            <div class=\"photo-caption\">\n              <h3 class=\"font-bold text-neutral-950 mb-1\">Golden Finger Modules<\/h3>\n              <p class=\"text-sm text-slate-600\">Plug-in modules, control cards, and connector interface boards.<\/p>\n            <\/div>\n          <\/div>\n\n          <div class=\"photo-block h-80\">\n            <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/Power-Supply-Boards.png\" alt=\"Double sided FR4 PCB used in power supply boards\" loading=\"lazy\" \/>\n            <div class=\"photo-caption\">\n              <h3 class=\"font-bold text-neutral-950 mb-1\">Power Supply Boards<\/h3>\n              <p class=\"text-sm text-slate-600\">Power adapter PCBs, control power boards, and electronic power modules.<\/p>\n            <\/div>\n          <\/div>\n\n          <div class=\"photo-block h-80\">\n            <img decoding=\"async\" src=\"https:\/\/ycpcbs.com\/wp-content\/uploads\/2026\/05\/Finished-PCBA.png\" alt=\"Double sided FR4 PCB assembly for electronic control products\" loading=\"lazy\" \/>\n            <div class=\"photo-caption\">\n              <h3 class=\"font-bold text-neutral-950 mb-1\">Finished PCBA<\/h3>\n              <p class=\"text-sm text-slate-600\">SMT, DIP, functional testing, and finished electronic control boards.<\/p>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Related Product Families -->\n    <section class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"text-center max-w-3xl mx-auto mb-16\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Related Product Families\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            FR4, Aluminum, Copper Substrate, and LED PCBA Solutions\n          <\/h2>\n\n          <p class=\"text-slate-600 leading-relaxed\">\n            For LED lighting and industrial electronics, YC Electronic can also support aluminum PCB, copper substrate PCB, 4-layer FR4 PCB, and LED light PCBA projects.\n          <\/p>\n        <\/div>\n\n        <div class=\"grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6\">\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">FR4 PCB Series<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Single layer FR4, double layer FR4, golden finger FR4, and communication series 4-layer FR4 PCB.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Aluminum PCB Series<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              1060 \/ 5052 aluminum substrate boards with 1W-8W <a href=\"\/aluminum-pcb\/\" style=\"font-weight:bold;color:var(--e-global-color-primary,#0058e6);text-decoration:underline;\">thermal conductivity<\/a> options for LED lighting and high-power modules.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Copper Substrate PCB<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Purple copper substrate boards with high thermal conductivity for flashlight, projector, stage light, and high-power LED applications.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-primary text-white relative overflow-hidden\">\n            <div class=\"relative z-10\">\n              <h3 class=\"font-bold mb-3\">LED Light PCBA<\/h3>\n              <p class=\"text-sm text-white\/85 leading-relaxed\">\n                Aluminum \/ FR4 PCB with component sourcing, SMT, DIP, functional testing, and packing for LED lighting products.\n              <\/p>\n            <\/div>\n            <div class=\"absolute -right-10 -bottom-10 w-32 h-32 bg-white\/20 rounded-full blur-2xl\"><\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Cost & Lead Time -->\n    <section class=\"py-24 bg-white\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"grid grid-cols-1 lg:grid-cols-2 gap-14 items-start\">\n          <div>\n            <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n              Pricing Drivers\n            <\/div>\n\n            <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-6\">\n              Gerber-Based Pricing for Double Sided FR4 PCB\n            <\/h2>\n\n            <p class=\"text-slate-600 leading-relaxed mb-6\">\n              Double sided FR4 PCB pricing is calculated from the Gerber file, drill file, board size, surface finish, copper weight, panel utilization, production quantity, and assembly requirement.\n            <\/p>\n\n            <p class=\"text-slate-600 leading-relaxed\">\n              The following factors usually have the strongest impact on the final quotation.\n            <\/p>\n          <\/div>\n\n          <div class=\"space-y-4\">\n            <div class=\"p-5 rounded-2xl bg-slate-50 border border-slate-200\">\n              <div class=\"font-bold text-neutral-950 mb-1\">1. Board Size & Panel Utilization<\/div>\n              <p class=\"text-sm text-slate-600\">The strongest pricing driver. Better panel utilization reduces material waste and unit cost.<\/p>\n            <\/div>\n\n            <div class=\"p-5 rounded-2xl bg-slate-50 border border-slate-200\">\n              <div class=\"font-bold text-neutral-950 mb-1\">2. Drill Count & Via Density<\/div>\n              <p class=\"text-sm text-slate-600\">Higher drill count increases drilling time, plating load, and inspection complexity.<\/p>\n            <\/div>\n\n            <div class=\"p-5 rounded-2xl bg-slate-50 border border-slate-200\">\n              <div class=\"font-bold text-neutral-950 mb-1\">3. Surface Finish<\/div>\n              <p class=\"text-sm text-slate-600\">HASL is the baseline cost option. ENIG is selected when pad flatness, storage stability, or golden finger requirements are important.<\/p>\n            <\/div>\n\n            <div class=\"p-5 rounded-2xl bg-slate-50 border border-slate-200\">\n              <div class=\"font-bold text-neutral-950 mb-1\">4. Copper Weight<\/div>\n              <p class=\"text-sm text-slate-600\">1oz is the common baseline. 2oz and 3oz copper increase material cost and etching control requirements.<\/p>\n            <\/div>\n\n            <div class=\"p-5 rounded-2xl bg-primary text-white relative overflow-hidden\">\n              <div class=\"relative z-10\">\n                <div class=\"font-bold mb-1\">5. Quantity<\/div>\n                <p class=\"text-sm text-white\/85\">Prototype, pilot run, and batch production are quoted separately. Volume pricing improves after panel and process conditions are stable.<\/p>\n              <\/div>\n              <div class=\"absolute -right-10 -bottom-10 w-32 h-32 bg-white\/20 rounded-full blur-2xl\"><\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Commercial Terms -->\n    <section class=\"py-24 bg-slate-50\">\n      <div class=\"container mx-auto px-6\">\n        <div class=\"text-center max-w-3xl mx-auto mb-16\">\n          <div class=\"inline-flex px-4 py-2 rounded-full bg-primary-light text-primary font-semibold text-sm mb-6\">\n            Commercial Terms\n          <\/div>\n\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-5\">\n            Procurement, Logistics, and Delivery Support\n          <\/h2>\n\n          <p class=\"text-slate-600 leading-relaxed\">\n            For international PCB buyers, quotation is not only about unit price. Delivery documents, payment terms, inspection records, logistics options, and after-sales handling are also part of the purchasing decision.\n          <\/p>\n        <\/div>\n\n        <div class=\"grid grid-cols-1 md:grid-cols-2 lg:grid-cols-5 gap-6\">\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Payment Terms<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Standard terms are T\/T before production release. For repeat customers or larger production programs, payment schedule can be reviewed based on order history, credit status, and project value.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">International Logistics<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              DHL, UPS, FedEx, air freight, and sea freight can be reviewed according to order quantity, delivery country, packing volume, and buyer requirements.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Shipping Documents<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Commercial invoice, packing list, and shipping information can be provided. RoHS or compliance documents can be prepared when required.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-white border border-slate-200\">\n            <h3 class=\"font-bold text-neutral-950 mb-3\">Inspection Records<\/h3>\n            <p class=\"text-sm text-slate-600 leading-relaxed\">\n              Electrical test record, visual inspection result, and production notes can be provided based on order requirement.\n            <\/p>\n          <\/div>\n\n          <div class=\"p-6 rounded-3xl bg-primary text-white relative overflow-hidden\">\n            <div class=\"relative z-10\">\n              <h3 class=\"font-bold mb-3\">After-Sales Handling<\/h3>\n              <p class=\"text-sm text-white\/85 leading-relaxed\">\n                Quality issues are reviewed based on files, photos, batch records, and inspection results. Replacement or corrective action can be discussed case by case.\n              <\/p>\n            <\/div>\n            <div class=\"absolute -right-10 -bottom-10 w-32 h-32 bg-white\/20 rounded-full blur-2xl\"><\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <!-- Final CTA -->\n    <section class=\"py-24 relative overflow-hidden bg-white\">\n      <div class=\"absolute inset-0 hero-gradient bg-grid-pattern\"><\/div>\n\n      <div class=\"container mx-auto px-6 text-center relative z-10\">\n        <div class=\"max-w-4xl mx-auto glass-card p-10 md:p-20 rounded-[3rem] shadow-2xl relative border-slate-100\">\n          <h2 class=\"font-heading text-4xl md:text-5xl font-bold text-neutral-950 mb-6\">\n            Request a Custom 2-Layer FR4 PCB Quote\n          <\/h2>\n\n          <p class=\"text-lg text-slate-600 mb-10 max-w-2xl mx-auto leading-relaxed\">\n            Send Gerber files, board size, quantity, copper weight, solder mask color, surface finish, via requirement, panelization method, and PCBA files if assembly is required.\n          <\/p>\n\n          <div class=\"flex flex-col sm:flex-row justify-center items-center gap-6\">\n            <button type=\"button\" data-product=\"Custom Double Sided FR4 PCB\" class=\"quote-open w-full sm:w-auto px-10 py-5 bg-primary hover:bg-primary-dark text-white rounded-2xl font-bold transition-all shadow-xl shadow-primary\/30\" onclick=\"openInquiry()\">\n              Open RFQ Form\n            <\/button>\n\n            <a href=\"mailto:sales@ycelectronic.com\" class=\"w-full sm:w-auto px-10 py-5 bg-white border border-slate-200 hover:border-primary text-neutral-950 rounded-2xl font-bold transition-all\">\n              Email Sales Team\n            <\/a>\n          <\/div>\n\n          <div class=\"mt-12 flex flex-wrap justify-center gap-8 text-sm text-slate-400\">\n            <span>\u2713 DFM Review Included in Preparation<\/span>\n            <span>\u2713 Prototype & Batch Orders<\/span>\n            <span>\u2713 PCB + PCBA Support<\/span>\n          <\/div>\n\n          <div class=\"mt-10 pt-8 border-t border-slate-200 text-sm text-slate-500\">\n            <p>\n              Email:\n              <a href=\"mailto:sales@ycelectronic.com\" class=\"text-primary font-semibold hover:underline\">sales@ycelectronic.com<\/a>\n              <span class=\"mx-2 text-slate-300\">|<\/span>\n              Website:\n              <a href=\"https:\/\/ycpcbs.com\/\" class=\"text-primary font-semibold hover:underline\">ycpcbs.com<\/a>\n            <\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/section>\n\n  <\/main>\n\n<!-- YC PCB Floating Quote Button -->\n<a\n  id=\"ycpcbsFloatQuote\"\n  href=\"#ycpcbs-contact-popup\"\n  aria-label=\"Get Free Quote\"\n>\n  \ud83d\udce9 Get Free Quote\n<\/a>\n\n<!-- YC PCB Unified Contact Popup -->\n<div class=\"ycpcbs-contact-popup\" id=\"ycpcbs-contact-popup\">\n  <div\n    class=\"ycpcbs-popup-dialog\"\n    role=\"dialog\"\n    aria-modal=\"true\"\n    aria-labelledby=\"ycpcbs-popup-title\"\n  >\n    <a class=\"ycpcbs-popup-close\" href=\"#\" aria-label=\"Close contact form\">\u00d7<\/a>\n\n    <div class=\"ycpcbs-popup-head\">\n      <div style=\"display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:#eaf9ee;color:#28a745;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;\">\n        Quick Project Inquiry\n      <\/div>\n      <h3 id=\"ycpcbs-popup-title\">Send Your Double Sided FR4 PCB Requirements<\/h3>\n      <p>\n        Tell us what you need. For Gerber files, drill data, BOM, pick-and-place files,\n        drawings, golden finger details or other attachments, email them directly to\n        sales@ycelectronic.com after submitting this form.\n      <\/p>\n    <\/div>\n\n    <form\n      id=\"ycpcbs-contact-form\"\n      data-endpoint=\"https:\/\/ycpcbs.com\/wp-json\/zeroy\/v1\/submissions\"\n    >\n      <div class=\"ycpcbs-popup-field\">\n        <label for=\"ycpcbs-name\">Name<\/label>\n        <input id=\"ycpcbs-name\" name=\"name\" type=\"text\" placeholder=\"Your name\" required>\n      <\/div>\n\n      <div class=\"ycpcbs-popup-field\">\n        <label for=\"ycpcbs-phone\">Email \/ WhatsApp \/ Phone<\/label>\n        <input id=\"ycpcbs-phone\" name=\"phone\" type=\"text\" placeholder=\"Email, WhatsApp or phone number\" required>\n      <\/div>\n\n      <div class=\"ycpcbs-popup-field\">\n        <label for=\"ycpcbs-message\">Project Requirements<\/label>\n        <textarea\n          id=\"ycpcbs-message\"\n          name=\"message\"\n          placeholder=\"Please include board size, thickness, copper weight, solder mask color, surface finish, quantity, via \/ hole requirements, golden finger needs, panelization, PCBA requirements and target delivery time.\"\n          required\n        ><\/textarea>\n      <\/div>\n\n      <input\n        type=\"text\"\n        name=\"_zeroy_hp\"\n        value=\"\"\n        tabindex=\"-1\"\n        autocomplete=\"off\"\n        aria-hidden=\"true\"\n        style=\"display:none !important;\"\n      >\n\n      <input\n        type=\"hidden\"\n        name=\"_zeroy_redirect\"\n        value=\"https:\/\/ycpcbs.com\/thank-you-2\/\"\n      >\n\n      <button class=\"ycpcbs-popup-submit\" type=\"submit\">\n        Send Project Requirements\n      <\/button>\n\n      <div class=\"ycpcbs-popup-note\">\n        Need to send Gerber, BOM or drawings?\n        <a href=\"mailto:sales@ycelectronic.com\">sales@ycelectronic.com<\/a>\n      <\/div>\n    <\/form>\n  <\/div>\n<\/div>\n\n<script>\ndocument.addEventListener('DOMContentLoaded', function () {\n  window.openInquiry = function () {\n    window.location.hash = 'ycpcbs-contact-popup';\n  };\n\n  window.closeInquiry = function () {\n    if (window.location.hash === '#ycpcbs-contact-popup') {\n      history.replaceState(null, '', window.location.pathname + window.location.search);\n    }\n  };\n\n  const form = document.getElementById('ycpcbs-contact-form');\n  if (!form) return;\n\n  form.addEventListener('submit', async function (event) {\n    event.preventDefault();\n\n    const submitButton = form.querySelector('[type=\"submit\"]');\n    const originalButtonText = submitButton ? submitButton.textContent : '';\n\n    if (submitButton) {\n      submitButton.disabled = true;\n      submitButton.textContent = 'Sending...';\n    }\n\n    try {\n      const endpoint =\n        form.dataset.endpoint ||\n        'https:\/\/ycpcbs.com\/wp-json\/zeroy\/v1\/submissions';\n\n      const formData = new FormData(form);\n\n      const response = await fetch(endpoint, {\n        method: 'POST',\n        body: formData\n      });\n\n      let result = null;\n\n      try {\n        result = await response.json();\n      } catch (jsonError) {\n        throw new Error('Invalid response from the submission service.');\n      }\n\n      if (result && result.success === true) {\n        window.location.href = 'https:\/\/ycpcbs.com\/thank-you-2\/';\n        return;\n      }\n\n      throw new Error(\n        (result && result.data && result.data.message) ||\n        (result && result.message) ||\n        'Submission failed.'\n      );\n\n    } catch (error) {\n      console.error('Zeroy submission error:', error);\n\n      alert(\n        'Submission failed. Please try again or email your project to sales@ycelectronic.com.'\n      );\n\n      if (submitButton) {\n        submitButton.disabled = false;\n        submitButton.textContent = originalButtonText;\n      }\n    }\n  });\n});\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Custom 2-Layer FR4 PCB Manufacturing Double Sided FR4 PCB 3-5 Day Prototype Delivery. YC PCB manufactures custom 2-layer FR4 printed circuit boards from Gerber files for industrial control, LED driver modules, golden finger connector boards, communication electronics, power boards, and assembled PCBA projects. Supported surface finishes include OSP, HASL, lead-free HASL, and ENIG. Solder mask [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_zeroy_edited":true,"_zeroy_last_edited":"2026-08-10 07:54:46","footnotes":""},"class_list":["post-3745","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/pages\/3745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/comments?post=3745"}],"version-history":[{"count":3,"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/pages\/3745\/revisions"}],"predecessor-version":[{"id":4213,"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/pages\/3745\/revisions\/4213"}],"wp:attachment":[{"href":"https:\/\/ycpcbs.com\/it\/wp-json\/wp\/v2\/media?parent=3745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}