{"id":12630,"date":"2025-09-02T11:58:58","date_gmt":"2025-09-02T03:58:58","guid":{"rendered":"https:\/\/www.bestpcbs.com\/blog\/?p=12630"},"modified":"2025-09-02T14:26:12","modified_gmt":"2025-09-02T06:26:12","slug":"pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/","title":{"rendered":"PCB Directory Types: FR4, FPC, Ceramic &amp; Metal Core PCB"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#What_Is_PCB_Directory\" >What Is PCB Directory?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#What_Are_Types_of_PCB_Directory\" >What Are Types of PCB Directory?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#FR4_PCB_Directory\" >FR4 PCB Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#FPC_PCB_Directory\" >FPC PCB Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#Ceramic_PCB_Directory\" >Ceramic PCB Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#Metal_Core_PCB_Directory\" >Metal Core PCB Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#Our_Prototyping_Lead_Time\" >Our Prototyping Lead Time<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/#Our_Quality_Certifications\" >Our Quality Certifications<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"yzp-no-index\"><\/div>\n<p>Would you like to know what types of<strong> <\/strong><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/\" title=\"\"><strong>PCB directory<\/strong> <\/a>are? Let&#8217;s explore FR4, Flexible, ceramic and metal core PCB directories through this blog together.<\/p>\n\n\n\n<p>At EBest Circuit (Best Technology), we can provide you service:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Competitive Price &amp; Premium Quality<\/strong>&#8211; Maximize your budget with cost-effective PCBs that meet stringent quality standards.<\/li>\n\n\n\n<li><strong>24 Hours Rapid Prototyping<\/strong>&#8211; Accelerates product development cycles.<\/li>\n\n\n\n<li><strong>Free \u200cDFM (Design for Manufacturability\u200c) Support<\/strong> -Prevents manufacturing errors before production.<\/li>\n\n\n\n<li><strong>Full Turnkey Solution<\/strong>-handle PCB fabrication to assembly, saving vendor coordination time cost and production cost.<\/li>\n<\/ul>\n\n\n\n<p>Feel free to contact us if you have any inquiry for <strong><a href=\"https:\/\/www.bestpcbs.com\/products\/FR4-pcb.htm\" title=\"\">FR4 PCB<\/a><\/strong>, FPC PCB, ceramic PCB and MCPCB: <strong><a href=\"mailto:sales@bestpcbs.com\">sales@bestpcbs.com<\/a><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_PCB_Directory\"><\/span>What Is PCB Directory?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/09\/pcb-directory-types-fr4-fpc-ceramic-metal-core-pcb\/\" title=\"\">PCB Directory<\/a><\/strong> is a professional online service platform dedicated to the global printed circuit board (PCB) industry. It aggregates resources from manufacturers, assembly providers, and design service firms, facilitating efficient supplier matching through parameter-based categorization (e.g., material type, layer count, thickness) and geographic filters. The platform supports specialized requirements such as flexible PCB and <strong><a href=\"https:\/\/www.bestpcbs.com\/products\/ceramic-pcb.htm\" title=\"\">ceramic PCB<\/a><\/strong>, streamlining supply chain collaboration in electronics manufacturing and serving as a critical industry information hub.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/main-1.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/main-1.jpg\" alt=\"What Is PCB Directory?\" class=\"wp-image-12633\" style=\"width:840px;height:auto\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_Types_of_PCB_Directory\"><\/span>What Are Types of PCB Directory?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Base Material Categories<\/strong><\/p>\n\n\n\n<p>1. <strong>FR4 PCB Directory<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Core Material:<\/strong> Fiberglass-reinforced epoxy composite.<\/li>\n\n\n\n<li><strong>Parameters: <\/strong>Tg 130-180\u2103, DK 4.2-4.8.<\/li>\n\n\n\n<li><strong>Applications: <\/strong>Consumer electronics mainboards, industrial control systems.<\/li>\n<\/ul>\n\n\n\n<p><strong>2. Flexible PCB (FPC) Directory<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Core Material:<\/strong> Polyimide (PI) or polyester film.<\/li>\n\n\n\n<li><strong>Technical Features: <\/strong>Bend radius \u22641mm, &gt;100,000 flex cycles.<\/li>\n\n\n\n<li><strong>Applications: <\/strong>Foldable smartphones, medical endoscopy devices.<\/li>\n<\/ul>\n\n\n\n<p><strong>3. Ceramic PCB Directory<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Material Systems:<\/strong> Al\u2082O\u2083 (96%), AlN, BeO.<\/li>\n\n\n\n<li><strong>Thermal Performance: <\/strong>AlN 170-230W\/m\u00b7K &gt; Al\u2082O\u2083 24-28W\/m\u00b7K.<\/li>\n\n\n\n<li><strong>Applications: <\/strong>High-power LED modules, aerospace radar systems.<\/li>\n<\/ul>\n\n\n\n<p><strong>4. Metal Core PCB(MCPCB) Directory<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural Types: <\/strong>Aluminum-backed (MCPCB), Copper-backed (IMS).<\/li>\n\n\n\n<li><strong>Thermal Management: <\/strong>Thermal resistance as low as 0.5\u2103\/W.<\/li>\n\n\n\n<li><strong>Applications: <\/strong>Automotive headlamp drivers, photovoltaic inverters.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FR4_PCB_Directory\"><\/span>FR4 PCB Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single Layer PCB<\/strong><\/li>\n\n\n\n<li><strong>2 Layers PCB<\/strong><\/li>\n\n\n\n<li><strong>Multi-Layer PCB<\/strong><\/li>\n\n\n\n<li><strong>Heavy Copper PCB<\/strong><\/li>\n\n\n\n<li><strong>Bus Bar PCB<\/strong><\/li>\n\n\n\n<li><strong>Extra Thin PCB<\/strong><\/li>\n\n\n\n<li><strong>High Tg PCB<\/strong><\/li>\n\n\n\n<li><strong>HDI PCB<\/strong><\/li>\n\n\n\n<li><strong>RF Board<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>Our FR4 PCB capabilities:<\/strong><\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Item<\/strong><\/td><td><strong>Capabilities<\/strong><\/td><\/tr><tr><td>Layer Count<\/td><td>1 &#8211; 32 Layers<\/td><\/tr><tr><td>Max Board Dimension<\/td><td>2424&#8243; (610610mm)<\/td><\/tr><tr><td>Min Board Thickness<\/td><td>0.15mm<\/td><\/tr><tr><td>Max Board Thickness<\/td><td>6.0mm &#8211; 8.0mm<\/td><\/tr><tr><td>Copper Thickness<\/td><td>Outer Layer: 1oz~30oz, Inner Layer: 0.5oz~30oz<\/td><\/tr><tr><td>Min Line Width\/Line Space<\/td><td>Normal: 4\/4mil (0.10mm); HDI: 3\/3mil (0.076mm)<\/td><\/tr><tr><td>Min Hole Diameter<\/td><td>Normal: 8mil (0.20mm); HDI: 4mil (0.10mm)<\/td><\/tr><tr><td>Min Punch Hole Diameter<\/td><td>0.1&#8243; (2.5mm)<\/td><\/tr><tr><td>Min Hole Spacing<\/td><td>12mil (0.3mm)<\/td><\/tr><tr><td>Min PAD Ring(Single)<\/td><td>3mil (0.075mm)<\/td><\/tr><tr><td>PTH Wall Thickness<\/td><td>Normal: 0.59mil (15um); HDI: 0.48mil (12um)<\/td><\/tr><tr><td>Min Solder PAD Diameter<\/td><td>Normal: 14mil (0.35mm); HDI: 10mil (0.25mm)<\/td><\/tr><tr><td>Min Solder mask Bridge<\/td><td>Normal: 8mil (0.2mm); HDI: 6mil (0.15mm)<\/td><\/tr><tr><td>Min BAG PAD Margin<\/td><td>5mil (0.125mm)<\/td><\/tr><tr><td>PTH\/NPTH Diameter Tolerance<\/td><td>PTH: \u00b13mil (0.075mm); NPTH: \u00b12mil (0.05mm)<\/td><\/tr><tr><td>Hole Position Deviation<\/td><td>\u00b12mil (0.05mm)<\/td><\/tr><tr><td>Outline Tolerance<\/td><td>CNC: \u00b16mil (0.15mm); Die Punch: \u00b14mil (0.1mm); Precision Die: \u00b12mil (0.05mm)<\/td><\/tr><tr><td>Impedance Controlled<\/td><td>Value&gt;50ohm: \u00b110%; Value\u226450ohm: \u00b15ohm<\/td><\/tr><tr><td>Max Aspect Ratio<\/td><td>0.334027778<\/td><\/tr><tr><td>Surface Treatment<\/td><td>ENIG, Flash Gold, Hard Gold Finger, Gold Plating(50mil), Gold finger, Selected Gold plating, ENEPIG, ENIPIG; HAL, HASL(LF), OSP, Silver Immersion, Tin Immersion<\/td><\/tr><tr><td>Solder mask Color<\/td><td>Green\/White\/Black\/Yellow\/Blue\/Red<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FPC_PCB_Directory\"><\/span>FPC PCB Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single Sided Flexible Circuits<\/strong><\/li>\n\n\n\n<li><strong>Double Sided Flexible Circuits<\/strong><\/li>\n\n\n\n<li><strong>Multilayer Flexible Circuits<\/strong><\/li>\n\n\n\n<li><strong>\u200cFFC(Flat Flexible Cable\u200c)<\/strong><\/li>\n\n\n\n<li><strong>Dual Access Flexible Circuits<\/strong><\/li>\n\n\n\n<li><strong>Rigid-Flex Circuits<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>Our FPC PCB capabilities<\/strong>:<\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Item<\/strong><\/td><td><strong>Capabilities<\/strong><\/td><\/tr><tr><td>Layers Count<\/td><td>1-10L<\/td><\/tr><tr><td>Max Board Dimension<\/td><td>1L:500*2000mm; 2L:250*1380mm<\/td><\/tr><tr><td>Conductor Thickness<\/td><td>1\/3 OZ (12 um) &#8211; 4OZ (140um)<\/td><\/tr><tr><td>Min Line Width\/Line Space<\/td><td>2\/2mil<\/td><\/tr><tr><td>Min Hole Spacing<\/td><td>NPTH:16mil; PTH:20mil<\/td><\/tr><tr><td>Hole Position Deviation<\/td><td>\u00b14mil (0.10mm)<\/td><\/tr><tr><td rowspan=\"2\">Outline Tolerance<\/td><td>Laser: +0.15mm\/-0.05mm;<\/td><\/tr><tr><td>Die Punch: +0.10\/-0.20 mm<\/td><\/tr><tr><td>Surface Treatment<\/td><td>ENIG(Au 4u&#8221;), Hard Gold Plating (Au 50u&#8221;), Immersion Silver, Immersion Tin, OSP, ENEPIG<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/3.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/3.png\" alt=\"FPC PCB Directory\" class=\"wp-image-12634\"\/><\/a><\/figure>\n\n\n\n<p><strong>Our rigid-flex circuits capabilities:<\/strong><\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong><strong>Item<\/strong><\/strong><\/td><td><strong>Capabilities<\/strong><\/td><\/tr><tr><td>Layers Count<\/td><td>2-50L<\/td><\/tr><tr><td>Max Board Dimension<\/td><td>500 \u00d7 500mm<\/td><\/tr><tr><td>Conductor Thickness<\/td><td>0.5oz (18\u03bcm) &#8211; 2oz (70\u03bcm)<\/td><\/tr><tr><td>Board Thickness<\/td><td>0.3mm \u2013 4.0mm<\/td><\/tr><tr><td>Min Line Width\/Line Space<\/td><td>4\/4mil<\/td><\/tr><tr><td>Min Hole Spacing<\/td><td>NPTH: 16mil; PTH: 20mil<\/td><\/tr><tr><td>Min Solder Mask Bridge<\/td><td>8mil<\/td><\/tr><tr><td>Impedance Controlled<\/td><td>\u00b110% (&gt;50\u03a9); \u00b15\u03a9 (\u226450\u03a9)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/5.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/5.png\" alt=\"Rigid-Flex Circuits\" class=\"wp-image-12638\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ceramic_PCB_Directory\"><\/span>Ceramic PCB Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Thick Film Ceramic PCB<\/strong><\/li>\n\n\n\n<li><strong>Thin Film Ceramic PCB<\/strong><\/li>\n\n\n\n<li><strong>DBC Ceramic PCB<\/strong><\/li>\n\n\n\n<li><strong>DPC Ceramic PCB<\/strong><\/li>\n\n\n\n<li><strong>AMB Ceramic PCB<\/strong><\/li>\n\n\n\n<li><strong>LTCC PCB<\/strong><\/li>\n\n\n\n<li><strong>HTCC PCB<\/strong><\/li>\n<\/ul>\n\n\n\n<p id=\"block-eb6d6974-7ca9-44ec-892c-78e169306d5b\"><strong>Our ceramic PCB capabilities:<\/strong><\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Item<\/strong><\/td><td><strong>Capabilities<\/strong><\/td><\/tr><tr><td rowspan=\"3\">Layer Count&nbsp;&nbsp;&nbsp;&nbsp;<\/td><td>1-6L (Thick Film)<\/td><\/tr><tr><td>1-2L (DBC\/DPC\/AMB)<\/td><\/tr><tr><td>4-64L (LTCC\/HTCC)<\/td><\/tr><tr><td>Substrate Material<\/td><td>Al\u2082O\u2083, AlN, BeO, ZrO\u2082, Si\u2083N\u2084<\/td><\/tr><tr><td rowspan=\"3\">Conductor Thickness<\/td><td>Copper: 0.035-0.30mm<\/td><\/tr><tr><td>AgPd: 10-20\u03bcm<\/td><\/tr><tr><td>Au: 6-10\u03bcm<\/td><\/tr><tr><td>Working Temperature<\/td><td>-50\u2103 to 800\u2103<\/td><\/tr><tr><td>Bonded Resistors<\/td><td>\u00b10.5% Tolerance<\/td><\/tr><tr><td>PTH Diameter Tolerance<\/td><td>\u00b14mil (0.1mm)<\/td><\/tr><tr><td>NPTH Diameter Tolerance<\/td><td>\u00b12mil (0.05mm)<\/td><\/tr><tr><td>Outline Tolerance<\/td><td>Laser: +0.20\/-0.05mm<\/td><\/tr><tr><td rowspan=\"3\">Max Board Size<\/td><td>Thick Film: 200\u00d7200mm<\/td><\/tr><tr><td>DBC\/DCB: 138\u00d7178mm<\/td><\/tr><tr><td>DPC: 138\u00d7190mm AMB: 114\u00d7114mm<\/td><\/tr><tr><td>Min Board Thickness<\/td><td>0.25mm-0.40mm<\/td><\/tr><tr><td rowspan=\"2\">Min Hole Spacing<\/td><td>NPTH: 16mil (0.30mm)<\/td><\/tr><tr><td>PTH: 20mil (0.5mm)<\/td><\/tr><tr><td>Hole Vias Tolerance<\/td><td>\u00b14mil (0.1mm)<\/td><\/tr><tr><td>Cutting Tolerance<\/td><td>Laser: +0.2\/-0.05mm<\/td><\/tr><tr><td>Mold<\/td><td>+0.25\/-0.20mm<\/td><\/tr><tr><td>Line Width\/Space Tolerance<\/td><td>\u00b15mil (0.125mm), \u00b11mil (0.025mm)<\/td><\/tr><tr><td>Surface Treatment<\/td><td>AgPd, AuPd, Mn\/Ni (Thick Film), OSP, Nickel Plating, ENIG, ENEPIG<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/4-1.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/4-1.png\" alt=\"Ceramic PCB Directory\" class=\"wp-image-12636\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Metal_Core_PCB_Directory\"><\/span>Metal Core PCB Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Aluminum Base PCB<\/strong><\/li>\n\n\n\n<li><strong>Copper Base PCB<\/strong><\/li>\n\n\n\n<li><strong>COB PCB<\/strong><\/li>\n\n\n\n<li><strong>SinkPAD PCB<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Our MCPCB capabilities:<\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Item<\/strong><\/td><td><strong>Capabilities<\/strong><\/td><\/tr><tr><td>Layer Count<\/td><td>1-10L<\/td><\/tr><tr><td>Max Board Dimension<\/td><td>610\u00d71625mm<\/td><\/tr><tr><td>Conductor Thickness<\/td><td>0.5oz &#8211; 10oz<\/td><\/tr><tr><td>Min Line Width\/Line Space<\/td><td>4\/4mil<\/td><\/tr><tr><td>Wall Copper Thickness<\/td><td>Normal: 0.59mil; HDI: 0.48mil<\/td><\/tr><tr><td>Special Hole Types<\/td><td>Counterbore hole, Countersunk hole, Blind, Buried, Vias<\/td><\/tr><tr><td>Max Aspect Ratio<\/td><td>10:1<\/td><\/tr><tr><td>Min Board Thickness<\/td><td>0.8mm<\/td><\/tr><tr><td>Max Board Thickness<\/td><td>5.0mm<\/td><\/tr><tr><td>Min Hole Diameter<\/td><td>0.8mm<\/td><\/tr><tr><td>Min Hole Spacing<\/td><td>1mm<\/td><\/tr><tr><td>Min Solder mask Bridge<\/td><td>0.15mm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/1-1.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/09\/1-1.png\" alt=\"Metal Core PCB Directory\" class=\"wp-image-12637\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Our_Prototyping_Lead_Time\"><\/span>Our Prototyping Lead Time<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Lead time for FR4 PCB prototyping<\/strong><\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Layers<\/strong><\/td><td><strong>Normal Service<\/strong><\/td><td><strong>Fastest Service<\/strong><\/td><\/tr><tr><td>1<\/td><td>7 Days<\/td><td>24 H<\/td><\/tr><tr><td>2<\/td><td>8 Days<\/td><td>24 H<\/td><\/tr><tr><td>4<\/td><td>10 Days<\/td><td>48 H<\/td><\/tr><tr><td>6<\/td><td>10 Days<\/td><td>72 H<\/td><\/tr><tr><td>8<\/td><td>12 Days<\/td><td>72 H<\/td><\/tr><tr><td>\u226510<\/td><td>TBD<\/td><td>TBD<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Lead time for MCPCB prototyping<\/strong><\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Layers<\/strong><\/td><td><strong>Normal Service<\/strong><\/td><td><strong>Fastest Service<\/strong><\/td><\/tr><tr><td>1<\/td><td>4 Days<\/td><td>24 H<\/td><\/tr><tr><td>2<\/td><td>14 Days<\/td><td>168 H<\/td><\/tr><tr><td>4<\/td><td>21 Days<\/td><td>TBD<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Lead time for FPC, Rigid- Flex &amp; Ceramic PCB Prototyping<\/strong><\/p>\n\n\n\n<style>\n#content tr td {\n    border-top: 1px solid black;\n}\n<\/style>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Items<\/strong><\/td><td><strong>Normal Service<\/strong><\/td><td><strong>Fastest Service<\/strong><\/td><\/tr><tr><td>FPC<\/td><td>48-72 H<\/td><td>24 H<\/td><\/tr><tr><td rowspan=\"2\">Rigid- Flex<\/td><td>2 Weeks for 4L<\/td><td>1.5 Weeks for 4L<\/td><\/tr><tr><td>&gt;4L: TBD<\/td><td>&gt;4L: TBD<\/td><\/tr><tr><td>Ceramic<\/td><td>3 Weeks<\/td><td>2 Weeks<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Our_Quality_Certifications\"><\/span>Our Quality Certifications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ISO9001:2015<\/strong><\/li>\n\n\n\n<li><strong>ISO13485:2016<\/strong><\/li>\n\n\n\n<li><strong>REACH<\/strong><\/li>\n\n\n\n<li><strong>RoHS<\/strong><\/li>\n\n\n\n<li><strong>IATF16949<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Attaches is our FR4 PCB prototype video for your reference:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"FR4 PCB Prototype with Depth Control Manucturing Process\" width=\"450\" height=\"253\" src=\"https:\/\/www.youtube.com\/embed\/E_cEi2_FPpk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Welcome to contact us if you need any help for FR4 PCB, FPC PCB, ceramic PCB and MCPCB : <strong><a href=\"mailto:sales@bestpcbs.com\">sales@bestpcbs.com<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Would you like to know what types of PCB directory are? Let&#8217;s explore FR4, Flexible, ceramic and metal core PCB directories through this blog together. At EBest Circuit (Best Technology), we can provide you service: Feel free to contact us if you have any inquiry for FR4 PCB, FPC PCB, ceramic PCB and MCPCB: sales@bestpcbs.com. [&hellip;]<\/p>\n","protected":false},"author":33247,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[175,174,21,165,167,160],"tags":[2081,47,2080],"class_list":["post-12630","post","type-post","status-publish","format-standard","hentry","category-best-pcb","category-bestpcb","category-ceramic-pcb","category-fr4-pcb","category-mcpcb","category-metal-core-pcb","tag-fpc-pcb","tag-fr4-pcb","tag-pcb-directory"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/12630","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/users\/33247"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/comments?post=12630"}],"version-history":[{"count":8,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/12630\/revisions"}],"predecessor-version":[{"id":12649,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/12630\/revisions\/12649"}],"wp:attachment":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/media?parent=12630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/categories?post=12630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/tags?post=12630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}