{"id":9992,"date":"2025-07-08T18:30:31","date_gmt":"2025-07-08T10:30:31","guid":{"rendered":"http:\/\/www.bestpcbs.com\/blog\/?p=9992"},"modified":"2025-07-16T11:03:21","modified_gmt":"2025-07-16T03:03:21","slug":"pcb-gold-finger-beveling-design-pcb-deisgn-guide","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/","title":{"rendered":"PCB Gold Finger Beveling Design, PCB Deisgn Guide"},"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\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#What_Is_a_Gold_Finger\" >What Is a Gold Finger?<\/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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#Types_of_Gold_Fingers_in_PCB\" >Types of Gold Fingers in 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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#How_Thick_Is_PCB_Gold_Finger_Plating\" >How Thick Is PCB Gold Finger Plating?<\/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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#What_Is_the_Process_of_Gold_Plating_in_PCB\" >What Is the Process of Gold Plating in 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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#What_Is_Gold_Finger_Beveling\" >What Is Gold Finger Beveling?<\/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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#Purpose_of_Gold_Finger_Beveling\" >Purpose of Gold Finger Beveling<\/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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#Gold_Finger_Beveling_Angle_Options\" >Gold Finger Beveling Angle Options<\/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\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#Considerations_of_Beveling_Angles\" >Considerations of Beveling Angles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#PCB_Gold_Fingers_Applications\" >PCB Gold Fingers Applications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#About_EBest_Circuit_Best_Technology\" >About EBest Circuit (Best Technology)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"yzp-no-index\"><\/div>\n<p><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/\" title=\"\">Gold fingers<\/a> are one of the most critical features in many circuit boards, especially those used in high-reliability connections. Whether you\u2019re building a test interface, designing a PCIe card, or creating an edge connector, understanding gold finger beveling and its plating design is essential for durability and smooth performance.<\/p>\n\n\n\n<p>Let\u2019s explore everything about PCB gold fingers, the beveling process, and how to choose the right beveling angle for your board design.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/PCB-Gold-Finger-Beveling.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/PCB-Gold-Finger-Beveling.png\" alt=\"PCB Gold Finger Beveling Design, PCB Deisgn Guide\" class=\"wp-image-9998\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_a_Gold_Finger\"><\/span>What Is a Gold Finger?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/\" title=\"\">PCB gold fingers<\/a> are the gold-plated connectors located along the edge of a printed circuit board. They serve as contact points when a PCB is inserted into a slot or connector, just like in RAM, GPU cards, or other modular systems. These fingers are plated with hard gold to ensure they can withstand repeated insertion and removal cycles without wearing out.<\/p>\n\n\n\n<p>They are called &#8220;fingers&#8221; because they look like narrow, elongated pads stretching along the PCB\u2019s edge, similar to the fingers of a hand. Each gold finger connects to a circuit trace inside the board. When the PCB is inserted into a slot, the metal contacts on the gold fingers align with the contacts inside the connector, allowing signals to pass through.<\/p>\n\n\n\n<p>The main reason gold is used is because it doesn\u2019t corrode easily. Gold provides high conductivity and can withstand many insertions without losing its shape or functionality. In critical environments\u2014like military, aerospace, or telecom\u2014this reliability is essential.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Types_of_Gold_Fingers_in_PCB\"><\/span>Types of Gold Fingers in PCB<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>PCB gold fingers can be divided into two types \u2013 graded gold fingers and staggered gold fingers.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/3F19A14E-8842-4ed1-A9B9-861CC8B3AC78.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/3F19A14E-8842-4ed1-A9B9-861CC8B3AC78.png\" alt=\"Types of Gold Fingers in PCB\" class=\"wp-image-10010\"\/><\/a><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Graded Gold Finger<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Graded gold fingers refer to a design where the fingers are plated with gold at varying lengths or staggered elevations. Instead of all the fingers being aligned in a straight line, some are slightly longer than others. This is not just a visual variation\u2014it serves a very specific purpose. Graded fingers are typically used in applications where controlled insertion sequencing is required. When the PCB is inserted into the slot, the longer fingers make contact first, followed by the shorter ones.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Staggered Gold Fingers<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Another design strategy is using long and short gold fingers\u2014also known as staggered gold fingers. This refers to gold fingers of different physical lengths on the same board edge, but typically without beveling or plating depth variation. This technique is commonly used in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PCIe hot-pluggable cards<\/li>\n\n\n\n<li>Industrial control systems with replaceable modules<\/li>\n\n\n\n<li>Burn-in or test fixtures requiring safe first-contact<\/li>\n<\/ul>\n\n\n\n<p>The lengths are designed based on the depth of the connector slot and how the PCB enters the socket. Sometimes only a few pins\u2014such as GND or VCC\u2014are made longer, while the rest remain short.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Thick_Is_PCB_Gold_Finger_Plating\"><\/span>How Thick Is PCB Gold Finger Plating?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The durability of gold fingers comes from their plating thickness. Not all gold fingers are created equal. The thickness of the plating affects both how well they perform and how long they last.<\/p>\n\n\n\n<p>The gold layer is not pure; it is electroplated hard gold, which includes a bit of cobalt to improve hardness and wear resistance. Here&#8217;s a breakdown of common thicknesses:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Application Type<\/strong><\/td><td><strong>Gold Plating Thickness (Hard Gold)<\/strong><\/td><\/tr><tr><td>Standard Consumer Devices<\/td><td>0.76\u03bcm (30\u03bcin)<\/td><\/tr><tr><td>Industrial or Light Insertion<\/td><td>1.27\u03bcm (50\u03bcin)<\/td><\/tr><tr><td>High-Durability Applications<\/td><td>2.54\u03bcm (100\u03bcin)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>In general, 50\u03bcin is the most common for boards that are plugged and unplugged many times. If the fingers are not meant to be removed often, thinner plating is usually fine. But when in doubt, thicker is better\u2014it provides stronger wear resistance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_the_Process_of_Gold_Plating_in_PCB\"><\/span>What Is the Process of Gold Plating in PCB?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Creating strong, reliable pcb gold fingers requires precision. The plating process is done after the rest of the board is fabricated and cleaned. The focus is to add a hard gold layer only to the fingers\u2014nowhere else. Here\u2019s how the PCB gold finger plating process works step-by-step:<\/p>\n\n\n\n<p><strong>1. Finger Area Isolation<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<p>First, the PCB is cleaned, and only the finger areas are exposed. The rest of the board is masked to prevent unwanted plating elsewhere.<\/p>\n\n\n\n<p><strong>2. Nickel Plating (Bottom layer)<\/strong><\/p>\n\n\n\n<p>A nickel layer (typically 3\u20136\u03bcm) is electroplated onto the copper finger base. Nickel improves gold adhesion and acts as a barrier to prevent copper from diffusing into the gold over time.<\/p>\n\n\n\n<p><strong>3. Gold Electroplating (Top Layer)<\/strong><\/p>\n\n\n\n<p>After nickel, a layer of hard gold is plated on top. This layer is usually between 30\u03bcin and 100\u03bcin depending on the application. The plating uses a current that drives gold ions onto the nickel surface.<\/p>\n\n\n\n<p><strong>4. Cleaning and Inspection<\/strong><\/p>\n\n\n\n<p>Once the plating is complete, the board is cleaned, and the gold fingers are inspected for uniformity, roughness, or any missing areas.<\/p>\n\n\n\n<p><strong>5. Beveling (If Required)<\/strong><\/p>\n\n\n\n<p>If beveling is needed, it is done after plating. The edge is shaped to allow easier insertion into connectors.<\/p>\n\n\n\n<p><strong>6. Final Finishing<\/strong><\/p>\n\n\n\n<p>The rest of the PCB receives its finish (e.g., ENIG, OSP, HASL), but gold fingers remain untouched.<\/p>\n\n\n\n<p>This plating method results in durable, smooth connectors that resist oxidation and mechanical wear.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_Gold_Finger_Beveling\"><\/span>What Is Gold Finger Beveling?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/07\/pcb-gold-finger-beveling-design-pcb-deisgn-guide\/\" title=\"\">Gold finger beveling <\/a>is a mechanical process that trims the edge of the PCB\u2014where the gold fingers are located\u2014into a sloped angle. Rather than a blunt 90\u00b0 edge, the bevel creates a smooth ramp-like surface.<\/p>\n\n\n\n<p>Imagine sliding a PCB into a connector. A sharp edge might catch, damage the connector, or scrape off the plating. But a beveled edge slides in smoothly, reducing friction and improving contact.<\/p>\n\n\n\n<p>This is especially useful for PCBs used in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Backplane systems<\/li>\n\n\n\n<li>Server racks<\/li>\n\n\n\n<li>Communication modules<\/li>\n\n\n\n<li>Plug-and-play components<\/li>\n<\/ul>\n\n\n\n<p>The beveling process is typically done using precision grinding or CNC milling. Care is taken to maintain exact angle measurements without overcutting the gold plating.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/079CDE03-44B5-4069-BF6C-CE9D40FF478C.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/07\/079CDE03-44B5-4069-BF6C-CE9D40FF478C-1024x546.png\" alt=\"What Is Gold Finger Beveling?\" class=\"wp-image-10002\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Purpose_of_Gold_Finger_Beveling\"><\/span>Purpose of Gold Finger Beveling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are several important reasons why beveling is applied to PCB gold fingers:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Easier Insertion<\/strong><\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<p>A beveled edge helps the PCB slide into the connector smoothly. It reduces the chance of misalignment or jamming.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prevents Contact Damage<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Without beveling, the sharp PCB edge can scratch the connector pins, causing early wear or performance issues.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reduces Wear and Tear<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Repeated insertion cycles can wear out the gold plating. Beveling distributes the pressure more evenly, extending the lifespan of both board and connector.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Better Electrical Contact<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Smoother insertion means better alignment and tighter contact with the metal pins inside the slot. This leads to more stable signals and fewer connection errors.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Professional Manufacturing Finish<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Beveled gold fingers look more refined, signaling high-quality PCB craftsmanship.<\/p>\n\n\n\n<p>For any board that\u2019s going to be removed and reinserted frequently, beveling is not just a good idea\u2014it\u2019s almost essential.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Gold_Finger_Beveling_Angle_Options\"><\/span>Gold Finger Beveling Angle Options<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>When beveling, you have options for the bevel angle. The choice depends on how the PCB fits into its slot and the degree of insertion force you want to reduce. Here are the common beveling angles:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Angle<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td><strong>30\u00b0<\/strong><\/td><td>The most popular angle. Balances mechanical strength and ease of insertion.<\/td><\/tr><tr><td><strong>40\u00b0<\/strong><\/td><td>Offers a smoother slope than 30\u00b0. Used when insertion needs to be gentle.<\/td><\/tr><tr><td><strong>45\u00b0<\/strong><\/td><td>The steepest slope. Useful when the board must glide into the slot with minimal resistance.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Most applications stick with 30\u00b0, but you should always check the connector specification. Some high-density or high-speed connectors might require tighter tolerances and smoother entry paths.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Considerations_of_Beveling_Angles\"><\/span>Considerations of Beveling Angles<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Before you finalize your beveling angle, consider the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Slot Geometry<\/strong><\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<p>Look at how your connector or socket is shaped. If the slot opening is narrow, a steeper bevel (like 45\u00b0) might be helpful.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Insertion Frequency<\/strong><\/li>\n<\/ul>\n\n\n\n<p>If the PCB will be removed often\u2014like in test or modular setups\u2014a smoother entry reduces long-term damage.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mechanical Strength<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Sharper bevels remove more material. If your board edge carries mechanical load, avoid overly steep bevels.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gold Coverage<\/strong><\/li>\n<\/ul>\n\n\n\n<p>The beveling process should never cut through the gold. Make sure the gold plating thickness is enough to cover the entire bevel.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IPC Guidelines<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Refer to IPC-6012 and IPC-A-600 for guidelines on gold finger design, plating, and beveling requirements.<\/p>\n\n\n\n<p>Always coordinate with your PCB manufacturer to ensure the chosen bevel angle is feasible and matches your product\u2019s functional needs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCB_Gold_Fingers_Applications\"><\/span>PCB Gold Fingers Applications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Gold fingers are everywhere. Any device that uses edge connectors likely has them. Some of the most common use cases include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Graphics cards (GPU) \u2013 for connecting with the motherboard<\/li>\n\n\n\n<li>RAM modules \u2013 inserted into DIMM slots<\/li>\n\n\n\n<li>Motherboards and backplanes \u2013 for communication between layers or devices<\/li>\n\n\n\n<li>Test interface boards \u2013 for burn-in, programming, or debugging<\/li>\n\n\n\n<li>PLC and industrial control systems \u2013 for module plug-in<\/li>\n\n\n\n<li>Medical and defense electronics \u2013 where reliability is critical<\/li>\n<\/ul>\n\n\n\n<p>In all these applications, gold finger beveling helps ensure the boards don\u2019t fail during connection or removal. It may seem like a small detail, but its effect on reliability is huge. Gold finger beveling is one of those small but powerful features that improves the mechanical fit, electrical contact, and overall durability of your circuit boards. <strong>When designing your next PCB, pay attention to:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The gold finger plating thickness<\/li>\n\n\n\n<li>Whether beveling is needed<\/li>\n\n\n\n<li>The best angle for smooth insertion<\/li>\n\n\n\n<li>And the wear-and-tear the board will experience<\/li>\n<\/ul>\n\n\n\n<p>These decisions affect not only how well the board works, but how long it lasts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"About_EBest_Circuit_Best_Technology\"><\/span>About EBest Circuit (Best Technology)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>At EBest Circuit (Best Technology), we specialize in <a href=\"https:\/\/www.bestpcbs.com\/manufacturing\/pcb-manufacturing.htm\" title=\"\">PCB manufacturing<\/a> with a focus on high-reliability boards. We handle everything from custom hard gold finger design to precision beveling, ensuring your edge connectors meet international standards. Our team works with industries including medical, automotive, aerospace, and telecom.<\/p>\n\n\n\n<p>We follow strict quality processes and use MES traceability systems to track every step. Whether you need quick prototypes or high-volume production, our engineers are ready to help you design, test, and deliver high-performance PCBs with durable gold fingers.<\/p>\n\n\n\n<p>Looking for a <a href=\"https:\/\/www.bestpcbs.com\/\" title=\"\">PCB manufacturer<\/a> that understands the details? Let\u2019s build your next project together.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>1. Can I design gold fingers without beveling?<\/strong><\/p>\n\n\n\n<p>Yes, but for any board that will be plugged in and out regularly, beveling is highly recommended for smoother insertion and longer lifespan.<\/p>\n\n\n\n<p><strong>2. What\u2019s the difference between ENIG and hard gold?<\/strong><\/p>\n\n\n\n<p>ENIG is used on pads for soldering. Hard gold is plated on fingers for wear resistance. They are different in composition and use.<\/p>\n\n\n\n<p><strong>3. How do I specify beveling on my Gerber files?<\/strong><\/p>\n\n\n\n<p>You should include a separate mechanical drawing or notation in the fabrication notes to indicate the beveling angle and location.<\/p>\n\n\n\n<p><strong>4. Are gold fingers more expensive to produce?<\/strong><\/p>\n\n\n\n<p>Yes, due to the electroplating process and gold material cost. However, they add significant durability and value.<\/p>\n\n\n\n<p><strong>5. Can gold finger plating wear off?<\/strong><\/p>\n\n\n\n<p>Over time, yes\u2014especially if the plating is thin. Using thicker plating like 50\u03bcin or more helps prevent this.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gold fingers are one of the most critical features in many circuit boards, especially those used in high-reliability connections. Whether you\u2019re building a test interface, designing a PCIe card, or creating an edge connector, understanding gold finger beveling and its plating design is essential for durability and smooth performance. Let\u2019s explore everything about PCB gold [&hellip;]<\/p>\n","protected":false},"author":623,"featured_media":0,"comment_status":"open","ping_status":"open","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":[175,174,164,37,165,16],"tags":[1727],"class_list":["post-9992","post","type-post","status-publish","format-standard","hentry","category-best-pcb","category-bestpcb","category-design-guide","category-faq","category-fr4-pcb","category-pcb-technology","tag-gold-finger-beveling"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/9992","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\/623"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/comments?post=9992"}],"version-history":[{"count":7,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/9992\/revisions"}],"predecessor-version":[{"id":10322,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/9992\/revisions\/10322"}],"wp:attachment":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/media?parent=9992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/categories?post=9992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/tags?post=9992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}