{"id":10911,"date":"2025-07-23T17:37:51","date_gmt":"2025-07-23T09:37:51","guid":{"rendered":"https:\/\/www.bestpcbs.com\/blog\/?p=10911"},"modified":"2025-07-23T17:39:14","modified_gmt":"2025-07-23T09:39:14","slug":"20-oz-copper-pcb-design-guideline-for-high-current","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/","title":{"rendered":"20 oz Copper PCB Design Guideline for High Current"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#What_Is_a_20_oz_Copper_PCB\" >What Is a 20 oz Copper PCB?<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#How_Thick_Is_20_oz_Copper_PCB\" >How Thick Is 20 oz Copper PCB?<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#20_oz_Copper_PCB_Specifications\" >20 oz Copper PCB Specifications<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#Benefits_of_20_oz_Copper_Base_PCB\" >Benefits of 20 oz Copper Base PCB<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#When_to_Use_20_oz_of_Copper_PCB\" >When to Use 20 oz of Copper PCB?<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#What_Is_Difference_between_16_oz_and_20_oz_Copper_PCB\" >What Is Difference between 16 oz and 20 oz Copper PCB?<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#How_to_Design_20_oz_Copper_PCB_for_High_Current\" >How to Design 20 oz Copper PCB for High Current?<\/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\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/#Why_Choose_EBest_Circuit_Best_Technology_as_Your_Copper_PCB_Manufacturer\" >Why Choose EBest Circuit (Best Technology) as Your Copper PCB Manufacturer?<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"yzp-no-index\"><\/div>\n<p>How to design<a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/\" title=\"\"> <strong>20 oz copper PCB<\/strong><\/a> for high current? Let&#8217;s explore thickness, specifications, benefits, application and design guideline for 20 oz copper PCB.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">Are you worried about these problems?<\/mark><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">PCB circuits are prone to overload and burn in high current scenarios.<\/mark><\/strong><\/li>\n\n\n\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">The heat dissipation solution takes up space and is expensive.<\/mark><\/strong><\/li>\n\n\n\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">The yield rate of thick copper plate processing fluctuates greatly.<\/mark><\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">The services EBest Circuit (Best Technology) can provide:<\/mark><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">The 20oz ultra-thick copper foil design has a current carrying capacity that is 3 times that of conventional PCBs. It can stably carry 150A continuous current through thermal simulation verification<\/mark><\/strong>.<\/li>\n\n\n\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">The patented copper-based composite structure and built-in heat conduction channel realize PCB self-heating, saving 40% of the cost of peripheral heat dissipation components<\/mark><\/strong>.<\/li>\n\n\n\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">The unique step-by-step pressing process, combined with full-process quality control, ensures that the batch production yield rate is stable at more than 95%. <\/mark><\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#059bf8\" class=\"has-inline-color\">Welcome to contact EBest Circuit (Best Technology) if you have any inquiry for copper PCB: <a href=\"mailto:sales@bestpcbs.com\">sales@bestpcbs.com<\/a>.<\/mark><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_a_20_oz_Copper_PCB\"><\/span>What Is a 20 oz Copper PCB?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A <strong><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/\" title=\"\">20 oz copper PCB<\/a> <\/strong>utilizes a 700\u03bcm-thick copper layer (equivalent to 20 ounces per square foot), significantly exceeding standard copper weights to achieve exceptional electrical performance. This extreme copper thickness minimizes resistive losses (I\u00b2R heating) while enabling current handling capabilities exceeding hundreds of amperes, making it essential for high-power systems requiring stable operation under intense loads.<\/p>\n\n\n\n<p>Its substantial copper mass provides superior thermal conductivity (&gt;380 W\/m\u00b7K), efficiently dissipating heat toward heatsinks or enclosures to maintain operating temperatures within safe limits. Fabrication demands specialized processes like stepped lamination and high-temperature resins to prevent delamination, ensuring structural integrity during repeated thermal cycles. These boards serve critical roles in electric vehicle charging systems, industrial power converters, and energy distribution infrastructure where reliability under sustained high loads is non-negotiable.<\/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\/07\/main-35.jpg\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/main-35.jpg\" alt=\"What Is a 20 oz Copper PCB?\" class=\"wp-image-10965\" style=\"aspect-ratio:3\/2;object-fit:cover;width:840px;height:auto\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Thick_Is_20_oz_Copper_PCB\"><\/span>How Thick Is 20 oz Copper PCB?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The thickness of a 20 oz copper layer in a PCB is approximately <strong>700 micrometers (\u03bcm)<\/strong> . This measurement is derived from the industry standard where 1 ounce (oz) of copper per square foot equals roughly 35 \u03bcm in thickness, utilizing copper&#8217;s density and unit conversion principles.<br>Due to manufacturing tolerances, the actual copper thickness may vary by \u00b110%, resulting in a typical range of 630 \u03bcm to 770 \u03bcm for 20 oz copper PCBs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"20_oz_Copper_PCB_Specifications\"><\/span>20 oz Copper PCB Specifications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Parameter<\/strong><\/td><td><strong>Specification<\/strong><\/td><\/tr><tr><td>Copper Thickness<\/td><td>700\u03bcm (20 oz) \u00b110%<\/td><\/tr><tr><td>\u200cCurrent Capacity<\/td><td>100A+ continuous<\/td><\/tr><tr><td>Base Material<\/td><td>1-3mm thick copper core (99.95% purity)<\/td><\/tr><tr><td>\u200cThermal Conductivity<\/td><td>400W\/(m\u00b7K) (copper core)<\/td><\/tr><tr><td>Insulation Layer<\/td><td>50-100\u03bcm ceramic (Al\u2082O\u2083\/AlN), &gt;3kV breakdown<\/td><\/tr><tr><td>\u200cMin Trace Width<\/td><td>12mil (0.3mm)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Benefits_of_20_oz_Copper_Base_PCB\"><\/span>Benefits of 20 oz Copper Base PCB<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Extreme Current Handling <\/strong>\u2013 Supports 100A+ continuous current (3x standard PCBs), ideal for high-power applications like EV chargers and industrial inverters.<\/li>\n\n\n\n<li><strong>Superior Thermal Management<\/strong> \u2013 Copper core dissipates heat 60% faster than aluminum, reducing hotspots and extending component lifespan.<\/li>\n\n\n\n<li><strong>Space-Saving Design<\/strong> \u2013 Thick copper (700\u03bcm) allows narrower traces (12mil vs. 6mm for equivalent current), saving PCB area.<\/li>\n\n\n\n<li><strong>High Reliability <\/strong>\u2013 Resists thermal cycling fatigue, 3x longer lifespan in high-temperature environments vs. standard PCBs.<\/li>\n\n\n\n<li><strong>Lower Resistance<\/strong> \u2013 Pure copper base reduces conductive losses by 40%, improving energy efficiency.<\/li>\n\n\n\n<li><strong>High-Frequency Performance<\/strong> \u2013 Smooth copper surface (Ra&lt;0.5\u03bcm) minimizes signal loss for RF\/5G applications.<\/li>\n\n\n\n<li><strong>Mechanical Strength <\/strong>\u2013 Copper core prevents warping under heavy components (e.g., IGBT modules).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/1-13.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/1-13.png\" alt=\"Benefits of 20 oz Copper Base PCB\" class=\"wp-image-10966\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_to_Use_20_oz_of_Copper_PCB\"><\/span>When to Use 20 oz of Copper PCB?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Applications of <strong><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/\" title=\"\">20 oz copper PCB<\/a><\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>High-Power Electronics<\/strong> \u2013 Ideal for EV charging systems, industrial motor drives, and power converters requiring minimal resistance and efficient heat dissipation.<\/li>\n\n\n\n<li><strong>RF &amp; Telecommunications<\/strong> \u2013 Best for 5G base stations and satellite communication equipment where signal integrity and thermal stability are crucial.<\/li>\n\n\n\n<li><strong>Heavy-Duty Power Switching<\/strong> \u2013 Suitable for welding machines, server power supplies, and UPS systems handling extreme current surges.<\/li>\n\n\n\n<li><strong>High-Brightness LED Systems <\/strong>\u2013 Used in stadium lighting and industrial LED arrays where active cooling is necessary to maintain performance.<\/li>\n\n\n\n<li><strong>Automotive Power Modules<\/strong> \u2013 Optimal for EV inverters and battery management systems needing compact, high-current designs.<\/li>\n\n\n\n<li><strong>High-Temperature Industrial Equipment<\/strong> \u2013 Applied in machinery where prolonged thermal cycling and reliability are key factors.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/2-13.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/2-13.png\" alt=\"When to Use 20 oz of Copper PCB?\" class=\"wp-image-10967\" style=\"aspect-ratio:3\/2;object-fit:cover\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_Difference_between_16_oz_and_20_oz_Copper_PCB\"><\/span>What Is Difference between 16 oz and 20 oz Copper PCB?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Comparison Aspect<\/strong><\/td><td><strong>16 oz Copper PCB<\/strong><\/td><td><strong>20 oz Copper PCB<\/strong><\/td><\/tr><tr><td>\u200cCopper Thickness\u200c<\/td><td>~560 \u03bcm<\/td><td>~700 \u03bcm<\/td><\/tr><tr><td>\u200cCurrent Carrying Capacity\u200c (at same trace width)<\/td><td>Handles high currents (e.g., ~80A for 10mm width)<\/td><td>Handles high currents (e.g., ~80A for 10mm width)<\/td><\/tr><tr><td>\u200cThermal Management<\/td><td>Good heat dissipation, suitable for moderate-power apps<\/td><td>Superior heat spreading, minimizes hotspots by 15-20%<\/td><\/tr><tr><td>\u200cSpace Efficiency\u200c (trace width for same current)<\/td><td>Requires wider traces (e.g., 6mm for 30A)<\/td><td>Enables narrower traces (e.g., 4.8mm for 30A), saving PCB area<\/td><\/tr><tr><td>Manufacturing Cost &amp; Difficulty<\/td><td>Higher cost than standard PCBs, moderate etching challenges<\/td><td>Highest cost due to complex etching and material use<\/td><\/tr><tr><td>Applications<\/td><td>Industrial motor drives, UPS systems<\/td><td>EV fast chargers, server power supplies (&gt;500A surges)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Design_20_oz_Copper_PCB_for_High_Current\"><\/span>How to Design 20 oz Copper PCB for High Current?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/20-oz-copper-pcb-design-guideline-for-high-current\/\" title=\"\">20 oz Copper PCB design<\/a> guideline for High-Current<\/strong><\/p>\n\n\n\n<p><strong>1. Copper &amp; Trace Design<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Current Capacity: <\/strong>Use I = 0.048\u00d7\u0394T^0.44\u00d7(W\u00d7H)^0.725 (IPC-2221). 20 oz copper (700\u00b5m): 15mm width supports ~100A at \u0394T=30\u00b0C.<\/li>\n\n\n\n<li><strong>Trace Compensation:<\/strong> 2 oz: Add 0.2mm width; spacing \u22650.25mm;  4 oz: Critical traces \u22651.5mm wide; spacing \u22650.4mm.<\/li>\n\n\n\n<li><strong>Plane Layers: <\/strong>Use full-layer planes for currents &gt;30A (lower impedance, better heat spread).<\/li>\n<\/ul>\n\n\n\n<p><strong>2. Thermal Management<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Via Arrays: <\/strong>Place \u22650.3mm vias under power devices (pitch \u22641.5mm). Fill with thermal paste to connect to bottom copper, cutting thermal resistance by &gt;50%.<\/li>\n\n\n\n<li><strong>Exposed Copper:<\/strong> Remove solder mask for direct air cooling (2\u20133\u00d7 heat dissipation). Apply ENIG\/HASL for oxidation resistance.<\/li>\n\n\n\n<li><strong>Embedded Copper:<\/strong> For &gt;50A, embed 1.5mm copper blocks in FR4 layers (reduces local temps by \u226530\u00b0C).<\/li>\n<\/ul>\n\n\n\n<p><strong>3. Layer Stackup<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Multilayer Structure: <\/strong>&#8220;Sandwich&#8221; stackup (power layer \u2013 insulating layer \u2013 2 oz copper + 1mm aluminum). Inner layers use stepped copper (0.5\u20134 oz) to reduce Z-axis stress.<\/li>\n\n\n\n<li><strong>Prepreg: <\/strong>High-resin (e.g., 2116) for 85%+ fill. Board edges reinforced with epoxy slots (30% stronger).<\/li>\n<\/ul>\n\n\n\n<p><strong>4. Manufacturing<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Etching\/Plating: <\/strong>Use LDI for 3\/3mil traces; pulse plating for \u226525\u00b5m hole copper (uniformity &gt;90%).<\/li>\n\n\n\n<li><strong>Lamination:<\/strong> Pre-press 180\u00b0C\/40min\/15kg\/cm\u00b2; full press 200\u00b0C\/90min\/25kg\/cm\u00b2; cool \u22643\u00b0C\/min.<\/li>\n<\/ul>\n\n\n\n<p><strong>5. Safety &amp; Compliance<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Clearance: <\/strong>AC\/DC \u22656mm; creepage \u22658mm\/1000V (IEC 60664).<\/li>\n\n\n\n<li><strong>Protection: <\/strong>132\u00b0C TCO + current sensor; TVS diodes \u22645mm from connectors.<\/li>\n\n\n\n<li><strong>Isolation: <\/strong>Optocouplers\/transformers for AC-DC; primary-secondary spacing \u22658mm.<\/li>\n<\/ul>\n\n\n\n<p><strong>6. Verification<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Thermal Sim: <\/strong>ANSYS Icepak\/Simcenter for device temps (MOSFET Tj &lt;125\u00b0C). Current Density: SIwave maps; avoid &gt;500A\/cm\u00b2 (prevents electromigration).<\/li>\n\n\n\n<li><strong>Testing: <\/strong>Infrared scan for hotspots; key paths \u0394V &lt;2% (e.g., &lt;0.24V for 12V).<\/li>\n<\/ul>\n\n\n\n<p><strong>Client Design Tips:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cost vs. Performance:<\/strong> 20 oz suits 50A+ but needs via arrays\/aluminum.<\/li>\n\n\n\n<li><strong>Fabricator: <\/strong>Choose LDI\/pulse-plating vendors.<\/li>\n\n\n\n<li><strong>Lead Time:<\/strong> Add 3\u20135 days for custom stacks; confirm impedance upfront.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/3-16.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/3-16.png\" alt=\"How to Design 20 oz Copper PCB for High Current?\" class=\"wp-image-10968\" style=\"aspect-ratio:3\/2;object-fit:cover\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Choose_EBest_Circuit_Best_Technology_as_Your_Copper_PCB_Manufacturer\"><\/span>Why Choose EBest Circuit (Best Technology) as Your Copper PCB Manufacturer?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>24-hour rapid prototyping:<\/strong> shorten the R&amp;D cycle by 50% and accelerate product launch.<\/li>\n\n\n\n<li><strong>1 Piece MOQ &amp; Competitive Pricing <\/strong>\u2013 No hidden costs, offering the best value without compromising quality.<\/li>\n\n\n\n<li><strong>Thermal Solution Consulting: <\/strong>Free CFD simulation identifies optimal airflow paths.<\/li>\n\n\n\n<li><strong>Turnkey Solutions <\/strong>\u2013 Full-service PCB manufacturing from design to delivery, accelerating your product\u2019s time-to-market.<\/li>\n\n\n\n<li><strong>ISO 14001\/ISO 13485 certification: <\/strong>medical\/automotive customers are exempt from secondary testing, and compliance costs are reduced by 30%.<\/li>\n\n\n\n<li><strong>Free DFM (Design for Manufacturability) Analysis: <\/strong>Optimizes PCB layouts to reduce material waste, lower production costs, and avoid late-stage design revisions.<\/li>\n\n\n\n<li><strong>Rigorous quality control:<\/strong> directly reducing your maintenance costs by 40% while extending product lifespan.<\/li>\n<\/ul>\n\n\n\n<p>If you have any request for copper base PCB, welcome to contact us to get a free quote: <strong><a href=\"mailto:sales@bestpcbs.com\">sales@bestpcbs.com<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to design 20 oz copper PCB for high current? Let&#8217;s explore thickness, specifications, benefits, application and design guideline for 20 oz copper PCB. Are you worried about these problems? The services EBest Circuit (Best Technology) can provide: Welcome to contact EBest Circuit (Best Technology) if you have any inquiry for copper PCB: sales@bestpcbs.com. What [&hellip;]<\/p>\n","protected":false},"author":33247,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[175,174,167,160],"tags":[1816,141],"class_list":["post-10911","post","type-post","status-publish","format-standard","hentry","category-best-pcb","category-bestpcb","category-mcpcb","category-metal-core-pcb","tag-20-oz-copper-pcb","tag-copper-pcb"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/10911","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=10911"}],"version-history":[{"count":2,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/10911\/revisions"}],"predecessor-version":[{"id":10971,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/10911\/revisions\/10971"}],"wp:attachment":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/media?parent=10911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/categories?post=10911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/tags?post=10911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}