{"id":21906,"date":"2026-04-08T11:54:24","date_gmt":"2026-04-08T03:54:24","guid":{"rendered":"https:\/\/www.elepcb.com\/?p=21906"},"modified":"2026-04-08T11:54:24","modified_gmt":"2026-04-08T03:54:24","slug":"castellated-pcb","status":"publish","type":"post","link":"https:\/\/www.elepcb.com\/it\/blog\/castellated-pcb\/","title":{"rendered":"Spiegazione del PCB castellato: Processo, vantaggi e suggerimenti per la progettazione"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21906\" class=\"elementor elementor-21906\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-59efb455 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"59efb455\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-31117e29\" data-id=\"31117e29\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-34edcfc0 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"34edcfc0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__34edcfc0\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__34edcfc0\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__34edcfc0\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-791d4b63 elementor-widget elementor-widget-text-editor\" data-id=\"791d4b63\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"MMJ3dYqfMo488CxSgojc9hJ2nxR\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnzwWQ93rSlNWaDOzmxWNHbg\"><div data-page-id=\"SN2QdUsRfo9ptVxuu01cmMU6nCK\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"PjvLdozttokd6JxbqMlck9o0ngg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnD6GQVSvuMfvrKwaFEBoavd\"><div data-page-id=\"IvVMdpqGXoW5mAx2lnEcTBVanze\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-WPYWdY2xOo66vWxlZDUchLMWnCc\"><div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-Qi4JdNEs7ooXzexWItFcKPLMnwe\"><div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcngYZVqZDy4LgfSfF8s5haeh\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnjtx7NbCQ1Ki4arDshpR2Uc\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnjtx7NbCQ1Ki4arDshpR2Uc\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-TRkadMuXIoQixpxQZUUcBYTbnmg\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CYzidwIMxoeeQ2x0rHRcIx62nPc\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-UbPIdxFahov51zxhVGjcScx4nRe\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-ZxVZdCXe7odwGbx9tLYcJi75nqd\"><p>In the design of modern electronics, achieving a compact size, high reliability and seamless module integration is more important than ever. \u00a0<strong>Castellated holes, or plated half-holes<\/strong>, have become a practical solution for\u00a0making\u00a0direct board-to-board joining possible without using big connectors or making a mess with wires. They are mainly used in wireless modules, <a href=\"https:\/\/www.elepcb.com\/blog\/iot-pcb-board\/\">IoT gadgets<\/a>, and embedded systems.<\/p><p>This article will help you understand what castellated holes are, the process of making them, their benefits, different uses, and what you need to consider while designing them for the <a href=\"https:\/\/www.elepcb.com\/blog\/turnkey-pcb-assembly\/\">assembly of PCB<\/a>.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6598f962 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6598f962\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18217549\" data-id=\"18217549\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b870758 elementor-widget elementor-widget-spacer\" data-id=\"b870758\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2b53cd9b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2b53cd9b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-71908f17\" data-id=\"71908f17\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1a4fa2ec elementor-widget elementor-widget-heading\" data-id=\"1a4fa2ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>What are Castellated Holes in PCB?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1ed85fa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1ed85fa\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-921a683\" data-id=\"921a683\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2094965 elementor-widget elementor-widget-text-editor\" data-id=\"2094965\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PjvLdozttokd6JxbqMlck9o0ngg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcn9rWBNE0z7cGNNkCj3Vewue\"><div data-page-id=\"IvVMdpqGXoW5mAx2lnEcTBVanze\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CUrldvH4lo98zkxV4rhcyjfHnWg\"><div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-IZV1dOfeRov4Ffx357rcuRf1nIg\"><div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcn1sFD6Cz2Gf5Xv3S33USQLb\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnKOdPQO42f3n7IOrCrWi2Fc\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcn3f9pSZlIn9QMW5ydGoKIKg\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnmjaXUVu8adRPwuOvlFdH3g\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-V2MEdqmseoStffxLMcxc43dGnvh\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnb0pY9pP6QhQPQShp2CGeye\"><p>Castellated holes, also known as half-holes or plated-through holes (PTH), are located along the edge of PCBs. They are commonly found features on the edge of the PCB, mainly the small modules. Castellations provide a link to mount the modules into the main boards during PCB assembly.<\/p><p>Structurally, castellated holes are semi-circular indentations created on the edges of PCB by drilling full <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-via-filling\/\">vias<\/a> during the fabrication process, and are precisely split in half. To ensure the electrical and mechanical connections during mounting, these holes are plated with <a href=\"https:\/\/www.elepcb.com\/pcb-products\/ele-copper-pcb-board\/\">copper<\/a> or gold. By allowing the modules to be directly soldered into the main board, castellated PCBs\u00a0reduce the need for bulky wire, <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-connectors\/\">connectors<\/a>, and extra spaces.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46e63d5 elementor-widget elementor-widget-image\" data-id=\"46e63d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Plated-Half-holes-PCB.jpg\" class=\"attachment-large size-large wp-image-21909\" alt=\"Plated Half-holes PCB\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Plated-Half-holes-PCB.jpg 930w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Plated-Half-holes-PCB-300x200.jpg 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Plated-Half-holes-PCB-768x512.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Plated-Half-holes-PCB-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c8f480 elementor-widget elementor-widget-heading\" data-id=\"0c8f480\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>How Castellated PCBs are Manufactured?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8dc7d95 elementor-widget elementor-widget-text-editor\" data-id=\"8dc7d95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-SM1RdqCjnokYFyxwomNcUqLYnOh\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-P97Tdr669o6iRtxqrPZcXC7cneh\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnqsKUS4O8Cf5EffvRUfMWxd\"><p>Unlike the regular holes produced by drilling, castellated holes follow a series of manufacturing procedures. They are as follows:<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-cb95f90 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cb95f90\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-f71e19d\" data-id=\"f71e19d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0758790 elementor-widget elementor-widget-text-editor\" data-id=\"0758790\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3><strong>1. PCB Design and Layout<\/strong><\/h3><p>First of all, a <a href=\"https:\/\/www.elepcb.com\/pcb-layout-design-process-and-guidelines\/\">schematic design<\/a> is developed and then implemented in its layout. It provides the outline for the strategic placement of components and proper signal routing.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-cbe7e31\" data-id=\"cbe7e31\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b21ec0f elementor-widget elementor-widget-text-editor\" data-id=\"b21ec0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>2. Material Selection<\/strong><\/h3><p>When the PCB design is finalized, the appropriate <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-substrate-materials\/\">substrate material<\/a> is selected, and an adequate copper thickness is determined for lamination. After the selection, the base is precisely cut according to the application requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-19b1f6e\" data-id=\"19b1f6e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-57411a3 elementor-widget elementor-widget-text-editor\" data-id=\"57411a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>3. Drilling<\/strong><\/h3><p>In this step, perfectly aligned holes are drilled along the edge of the given substrate. The drilling must be done in such a way that the exact half of the holes sit inside the board area, whereas the other half sits on the waste material portion.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-89ddad2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"89ddad2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-01cd882\" data-id=\"01cd882\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4d29de5 elementor-widget elementor-widget-text-editor\" data-id=\"4d29de5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3><strong>4. Plating<\/strong><\/h3><p>After the full holes are formed by drilling, the plating procedure is implemented. Plating refers to the deposition of a thin layer of copper on the walls of the holes. This procedure can be carried out by electroless chemical deposition or electroplating. It provides a conductive path between layers and prepares holes for soldering.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-f07e438\" data-id=\"f07e438\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d08ad1a elementor-widget elementor-widget-text-editor\" data-id=\"d08ad1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>5. Specialised Edge Routing<\/strong><\/h3><p>It is the most critical step in manufacturing castellated hole\u00a0PCBs. In this step, the plated holes are precisely milled through the centre of the hole, creating a vertical semi-circular copper channel at the edge. For precision, the manufacturer uses a specialized <a href=\"https:\/\/www.fsfab.com\/cnc-routing\/\" rel=\"nofollow noopener\" target=\"_blank\">CNC routing<\/a> bit or a double milling technique. If copper burrs are formed during milling, they are removed by using alkaline etching.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-1863105\" data-id=\"1863105\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b670d8e elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"b670d8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>6. Testing and Inspection<\/strong><\/h3><p>Finally, the castellated PCBs are tested to ensure a flawless outcome. It includes the following<a href=\"https:\/\/www.elepcb.com\/blog\/pcb-test-point\/\"> tests<\/a>:<\/p><ul><li><strong>Visual Inspection:<\/strong> It is carried out by using high-magnification Automated Optical Inspection (AOI) to look for plating continuity and burr detection.<\/li><li><strong>Solderability Test:<\/strong> This test is performed to ensure that the soldering is accepted smoothly when the module is mounted to the main board.<\/li><li><strong>Dimensional Test:<\/strong> In this test, the diameter and position of the plated holes are verified as per the given design specifications. It should fit the modules during PCB assembly.<\/li><\/ul><p>In addition, the castellated holes must meet the requirements of industry standards like IPC-7351, IPC-A-600 and IPC-6012.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a33bac1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a33bac1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9d1303b\" data-id=\"9d1303b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bb1e2c4 elementor-widget elementor-widget-spacer\" data-id=\"bb1e2c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-423dd15 elementor-widget elementor-widget-heading\" data-id=\"423dd15\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Advantages of a Castellated PCB<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e66416d elementor-widget elementor-widget-text-editor\" data-id=\"e66416d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnOOtG6jVJVpZqYJT0WNUEiS\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnzJHwUA1nFAdlMl0sJDgxhh\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-ImR4d6RnQoSfuVxKNYJcyCxIn1d\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcn2eZ2axEfHrSjm5KYD4Xgiu\"><ul><li><strong>Better Signal Quality<\/strong><\/li><\/ul><p>Castellated PCBs provide a direct, vertical copper path that acts as a continuous copper path to the external module (WI-FI module, RF module) for smooth signal transition. It reduces the inductance and capacitance that are found in long wires and<a href=\"https:\/\/www.elepcb.com\/blog\/what-is-through-hole-pcb\/\"> through-hole<\/a> technology.<\/p><ul><li><strong>Enhanced Reliability<\/strong><\/li><\/ul><p>The castellated hole provides an enhanced mechanical strength and better resistance to vibration due to vertical plating. Additionally, castellated PCBs can withstand frequent connections and disconnections.<\/p><ul><li><strong>Compact Design<\/strong><\/li><\/ul><p>There is no need to use bulky wires and connectors. Therefore, castellated holes support a smaller and more compact design.<\/p><ul><li><strong>Easier PCB Assembly<\/strong><\/li><\/ul><p>Castellated PCBs\u00a0enable direct board-to-board mounting, allowing electrical connection through <a href=\"https:\/\/www.elepcb.com\/blog\/laser-soldering\/\">soldering<\/a>, which reduces the need for additional hardware and connectors. This makes PCB assembly easier.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9533075 elementor-widget elementor-widget-image\" data-id=\"9533075\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-holes-pcb-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-image-21926\" alt=\"Castellated holes pcb\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-holes-pcb-768x512.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-holes-pcb-300x200.jpg 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-holes-pcb-18x12.jpg 18w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-holes-pcb.jpg 930w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cb39f80 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cb39f80\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-03894e7\" data-id=\"03894e7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d6ec1e0 elementor-widget elementor-widget-heading\" data-id=\"d6ec1e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Common Use Cases of Castellated PCBs<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4b41b8 elementor-widget elementor-widget-text-editor\" data-id=\"a4b41b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnGDczRKDuLCU3g4NRUogjxe\"><p>Castellated holes are designed on different PCB modules for smooth operation. Some of the use cases of casellated\u00a0circuit boards are:<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e62b63d elementor-widget elementor-widget-text-editor\" data-id=\"e62b63d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3><b><\/b>Wireless Communication Modules<\/h3><p>For easy integration and effective signal transition, wireless modules like WiFi, Bluetooth, LoRa and cellular modules are manufactured with castellated holes.<\/p><ul><li><strong>Examples:<\/strong><ul><li>ESP32-WROOM Module: Microcontroller integrated with Wi-Fi and Bluetooth module<\/li><li>HC-05: Bluetooth Module<\/li><li>RFM95\/96 : Long Range (LoRa) module<\/li><li>SIMCOM: Cellular Module<\/li><\/ul><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2582d42 elementor-widget elementor-widget-text-editor\" data-id=\"2582d42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3><b><\/b>Consumer Electronics and Wearables<\/h3><p>Due to the clean and compact outcome of castellation, many wearables and <a href=\"https:\/\/www.elepcb.com\/applications\/pcb-for-consumer-electronics\/\">consumer electronics<\/a> prefer castellated PCBs.<\/p><ul><li><strong>Examples:<\/strong> GPS module in a smart watch, Biometric modules, etc.<\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7e1977 elementor-widget elementor-widget-text-editor\" data-id=\"e7e1977\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3><b><\/b>Automotive and Industrial Device<\/h3><p>Many automotive devices and industrial engineering applications use this technology due to a certain level of vibration-resistant capability of castellated holes.<\/p><ul><li><strong>Examples:<\/strong> PLC modules, Motor Controller, ADAS sensors, etc.<\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-168425f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"168425f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-08f2d94\" data-id=\"08f2d94\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a254226 elementor-widget elementor-widget-heading\" data-id=\"a254226\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Reliability and Failure Analysis of Castellated Holes in PCB<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-624328b elementor-widget elementor-widget-text-editor\" data-id=\"624328b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CfRodbvorozSB9xLeescRYHrnBb\"><div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnMABE7jR21se56ufMJP19eg\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnWOgT3vIIkNjfZkASrlkBSG\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnAJ5JwvKY8k3voqlXgZf03d\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-AerddF1rMoHgGpxQVwYcbeIUndc\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OXukdNN8vokJ8Vx71xpcX7GmnIg\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnZ8YMTrfVg7dgMpyX6OscWh\"><p>Since the modules are mounted onto the main board through castellated holes, the reliability of the given holes is a crucial factor in PCB assembly. Some of the failure cases of the castellation process are as follows:<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e449eec elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e449eec\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-a125777\" data-id=\"a125777\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6159cf0 elementor-widget elementor-widget-text-editor\" data-id=\"6159cf0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Copper Burrs<\/strong><\/h3><p>Copper burrs are thin conductive copper protrusions that are created when the machine drags copper instead of cutting. These burrs can cause electrical defects and short-circuiting. Generally, burrs are formed if the CNC routing bit is dull. Therefore, specialized CNC routing bits and different deburring tools are used to avoid this problem.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-31c7e87\" data-id=\"31c7e87\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a1d89eb elementor-widget elementor-widget-text-editor\" data-id=\"a1d89eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Copper Peeling and Cracking<\/strong><\/h3><p>Copper peeling and cracking can be seen due to insufficient plating thickness and poor copper adhesion to the laminate. This risk increases when the V-cut tool is used instead of specialized <a href=\"https:\/\/www.fsfab.com\/cnc-milling\/\" rel=\"nofollow noopener\" target=\"_blank\">CNC milling<\/a>. Due to the damage, poor plating integrity occurs. As a result, circuit failure issues such as open circuits and signal degradation are created.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-a66e42f\" data-id=\"a66e42f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d726584 elementor-widget elementor-widget-text-editor\" data-id=\"d726584\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Misalignment<\/strong><\/h3><p>Misalignment occurs when the module is manually placed into the main board during PCB assembly. It is caused when the assembly process is carried out without proper footprints or process control, resulting in a weak mechanical bond and solder bridging. To ensure the proper alignment, fiducial marks must be placed on the module, and alignment jigs must be used for <a href=\"https:\/\/www.elepcb.com\/blog\/what-is-pcb-manual-inspection\/\">manual<\/a> assembly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-b75ddae elementor-widget elementor-widget-spacer\" data-id=\"b75ddae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-eb78ee2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"eb78ee2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-664ca3d\" data-id=\"664ca3d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-862987a elementor-widget elementor-widget-heading\" data-id=\"862987a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Design Tips for Castellated PCBs<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f74bf5 elementor-widget elementor-widget-text-editor\" data-id=\"4f74bf5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CfRodbvorozSB9xLeescRYHrnBb\"><div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnMABE7jR21se56ufMJP19eg\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnWOgT3vIIkNjfZkASrlkBSG\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnAJ5JwvKY8k3voqlXgZf03d\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-AerddF1rMoHgGpxQVwYcbeIUndc\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OXukdNN8vokJ8Vx71xpcX7GmnIg\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnxAxzGK89RpQwYzq47R7Bad\"><p>A reliable castellated PCB\u00a0demands precision. Some common PCB design tips for castellated holes are described below:<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bd4e0b elementor-widget elementor-widget-text-editor\" data-id=\"7bd4e0b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Mechanical Specifications<\/strong><\/h3><p>Mechanically, the castellated holes must comply with the following specification for effective performance:<\/p><ul><li><strong>Holes size and spacing<\/strong><\/li><\/ul><p>The hole size and spacing must be maintained in such a way that it prevents structural failure. According to the design standard, the minimum diameter of the hole should be 0.5 mm, and the spacing between two castellated holes must be at least 0.55mm. The smaller hole size needs advanced fabrication technology.<\/p><ul><li><strong>Board Thickness<\/strong><\/li><\/ul><p>If the board is thin, it may cause cracking during milling or soldering. Generally, a board of thickness of 1mm or 1.6mm is preferred.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1ca2af elementor-widget elementor-widget-text-editor\" data-id=\"c1ca2af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Placement and Routing<\/strong><\/h3><p>The castelalted holes must be placed away from components and the routing path to avoid interference during soldering and PCB assembly. The distance between castellated holes and the edge of boards must be maintained at a certain level to prevent mechanical stress and potential damage to the PCB.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3c8438 elementor-widget elementor-widget-text-editor\" data-id=\"b3c8438\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Pad and Solder Mask Design<\/strong><\/h3><p>To prevent plating from peeling, the pad provides enough surface area for the board to hold the copper. Generally, the annular ring of 0.25 mm is maintained on both top and bottom copper layers. Similarly, the solder mask is slightly larger than the copper pad to ensure correct soldering without causing electrical shorts.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-618af00 elementor-widget elementor-widget-text-editor\" data-id=\"618af00\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Surface Finish and Fabrication<\/strong><\/h3><p>According to the application of castellated holes, <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-surface-finish\/\">surface finish<\/a> is carried out. The most popular surface finish technique is Electroless Nickel Immersion Gold (ENIG). It provides better solderability and resistance to corrosion. It is necessary to provide a burr-free finish to prevent shorts between adjacent pads.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73142c9 elementor-widget elementor-widget-text-editor\" data-id=\"73142c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Plating Integrity and Assembly Consideration<\/strong><\/h3><p>Plating integrity refers to the strength and thickness of copper inside the holes. The copper plating should not be torn out after milling. To maintain the plating integrity, electroplating is done according to the IPC Class 3 standard. This standard suggests the use of 25 to 35\u03bcm thick copper.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce363bd elementor-widget elementor-widget-image\" data-id=\"ce363bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"750\" height=\"340\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-PCB.png\" class=\"attachment-large size-large wp-image-21910\" alt=\"Castellated PCB\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-PCB.png 750w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-PCB-300x136.png 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2026\/04\/Castellated-PCB-18x8.png 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1c3a9b7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1c3a9b7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fbe5909\" data-id=\"fbe5909\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3486094 elementor-widget elementor-widget-spacer\" data-id=\"3486094\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b1a05c1 elementor-widget elementor-widget-heading\" data-id=\"b1a05c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>When to Consider the Alternatives to Castellated Hole<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef0edc4 elementor-widget elementor-widget-text-editor\" data-id=\"ef0edc4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CfRodbvorozSB9xLeescRYHrnBb\"><div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnMABE7jR21se56ufMJP19eg\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnWOgT3vIIkNjfZkASrlkBSG\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnAJ5JwvKY8k3voqlXgZf03d\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-AerddF1rMoHgGpxQVwYcbeIUndc\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OXukdNN8vokJ8Vx71xpcX7GmnIg\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnGUkocyECMcvN5G7pnkACTh\"><p>Although the castellated holes have a wide area of advantage and application, in some cases, alternatives may be used. In the following conditions, an alternative is preferred:<\/p><ul><li><strong>High Cost Sensitivity<\/strong><\/li><\/ul><p>Castellation uses specialized CNC routing, a cleaner finish and precise alignment that increases the cost of manufacture. In high-volume production, <a href=\"https:\/\/www.elepcb.com\/smt-pcb-service\/\">Surface Mount Technology (SMT<\/a>) is cheaper.<\/p><ul><li><strong>Repairability<\/strong><\/li><\/ul><p>Desoldering the castellated holes requires professional skills in case of the requirement for repair. If the manufacturers or PCB suppliers lack skilled manpower and a professional rework station, castellated holes are not preferred.<\/p><ul><li><strong>High mechanical Stress<\/strong><\/li><\/ul><p>As castellated holes are edge soldered, solder fatigue can be created if they can not withstand high mechanical stress and vibration. The difference in thermal coefficient between the module and carrier boards causes failure in castellated joints. In such cases, Through Hole Technology (THT) is preferred.<\/p><ul><li><strong>Low complexity<\/strong><\/li><\/ul><p>For a simpler circuit, direct soldering is easier to implement than the castellated holes.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4465bb8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4465bb8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8de21a4\" data-id=\"8de21a4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a38997d elementor-widget elementor-widget-heading\" data-id=\"a38997d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Conclusion<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d14f027 elementor-widget elementor-widget-text-editor\" data-id=\"d14f027\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-CfRodbvorozSB9xLeescRYHrnBb\"><div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnMABE7jR21se56ufMJP19eg\"><div data-page-id=\"J2QMdavk0oD5sPxTbU8cEnVUnzd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnWOgT3vIIkNjfZkASrlkBSG\"><div data-page-id=\"DFOfdWaHroRYmVxVW0acvcpVn7d\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnAJ5JwvKY8k3voqlXgZf03d\"><div data-page-id=\"AxBJd9tDooJT9BxmRHLc2n0CnGj\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-AerddF1rMoHgGpxQVwYcbeIUndc\"><div data-page-id=\"YAw8dOcYOoxkCIxJmsccHhEBnAd\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OXukdNN8vokJ8Vx71xpcX7GmnIg\"><div data-page-id=\"WW9NdGlkfoosJgxjv9rcvqtsnme\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-doxcnGUkocyECMcvN5G7pnkACTh\"><p>In summary, castellated holes serve as a reliable path for connecting modules to the main circuit board. To design an effective castellated PCB,\u00a0it is necessary to utilize certain mechanical specifications, along with the maintenance of quality standards. \u00a0Additionally, precision in hole placement and plating integrity are the most crucial factors for castellation. Ultimately, castellated holes provide a robust foundation for modules.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bbf2b4 elementor-widget elementor-widget-text-editor\" data-id=\"1bbf2b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #008000;\"><em><strong>Wanna know more about PCB holes or looking for PCB manufacturing services?\u00a0 <a href=\"https:\/\/www.elepcb.com\/contact-us\/\">Contact us now &gt;&gt;<\/a><\/strong><\/em><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-688ba04c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"688ba04c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3c2fc7ea\" data-id=\"3c2fc7ea\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-00fccbf elementor-widget elementor-widget-heading\" data-id=\"00fccbf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>FAQs<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f9f4f7b elementor-widget elementor-widget-toggle\" data-id=\"6f9f4f7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1871\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1871\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q1: What is the difference between castellated holes and edge plating?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1871\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1871\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><p>A1: Castellated holes are U-shaped copper-plated holes at the edge of the module used for mounting modules to main boards, whereas edge plating includes copper plating at the vertical milled edge to shield Electromagnetic Interference (EMI) and provide proper grounding.<\/p><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1872\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1872\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q2: What is the difference between vias and castellated holes?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1872\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1872\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-BWQ0dJKPTovPhYx6XTfc9xMAngc\"><div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-ZGjidQpZuouEMuxnruBcR4Ujndg\"><p>A2:<\/p><ul><li>Vias are the full holes located inside the PCB board, while castellated holes are the semi-circular holes present at the edge of the PCB.<\/li><li>Vias are designed to create electrical connections between different layers of PCB, whereas castellated holes are designed to connect one board to another.<\/li><\/ul><\/div><\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Q1: What is the difference between castellated holes and edge plating?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\"><div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\"><p>A1: Castellated holes are U-shaped copper-plated holes at the edge of the module used for mounting modules to main boards, whereas edge plating includes copper plating at the vertical milled edge to shield Electromagnetic Interference (EMI) and provide proper grounding.<\\\/p><\\\/div><\\\/div>\"}},{\"@type\":\"Question\",\"name\":\"Q2: What is the difference between vias and castellated holes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\"><div class=\\\"ace-line ace-line old-record-id-BWQ0dJKPTovPhYx6XTfc9xMAngc\\\"><div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\"><div class=\\\"ace-line ace-line old-record-id-ZGjidQpZuouEMuxnruBcR4Ujndg\\\"><p>A2:<\\\/p><ul><li>Vias are the full holes located inside the PCB board, while castellated holes are the semi-circular holes present at the edge of the PCB.<\\\/li><li>Vias are designed to create electrical connections between different layers of PCB, whereas castellated holes are designed to connect one board to another.<\\\/li><\\\/ul><\\\/div><\\\/div><\\\/div><\\\/div>\"}}]}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72b68d12 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"72b68d12\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 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elementor-button-align-center elementor-widget elementor-widget-form\" data-id=\"5782c747\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"New Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"2056\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"5782c747\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"An Ultimate Guide to PCB Inspection Methods-ELE PCB\" \/>\n\n\t\t\t\t\t\t\t<input type=\"hidden\" name=\"queried_id\" value=\"4187\"\/>\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper 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elementor-field-textual\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-field_373bda7 elementor-col-50\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_373bda7\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tPhone Number\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[field_373bda7]\" id=\"form-field-field_373bda7\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Csak a sz\u00e1mok \u00e9s telefonkarakterek (#, -, * stb.) fogadhat\u00f3k el.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-checkbox elementor-field-group elementor-column elementor-field-group-field_c168eb1 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_c168eb1\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tI am interested in (select all that apply)\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<div class=\"elementor-field-subgroup  elementor-subgroup-inline\"><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Rigid PCBs\" id=\"form-field-field_c168eb1-0\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-0\">Rigid PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible Printed Circuit Boards\" id=\"form-field-field_c168eb1-1\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-1\">Flexible Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible Aluminum PCBs\" id=\"form-field-field_c168eb1-2\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-2\">Flexible Aluminum PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible PCB Microcircuits\" id=\"form-field-field_c168eb1-3\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-3\">Flexible PCB Microcircuits<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Ultra-Thin Flexible PCBs\" id=\"form-field-field_c168eb1-4\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-4\">Ultra-Thin Flexible PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Rigid-Flex\" id=\"form-field-field_c168eb1-5\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-5\">Rigid-Flex<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Ceramic Printed Circuit Boards\" id=\"form-field-field_c168eb1-6\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-6\">Ceramic Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Aluminum Printed Circuit Boards\" id=\"form-field-field_c168eb1-7\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-7\">Aluminum Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Copper Core\" id=\"form-field-field_c168eb1-8\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-8\">Copper Core<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"IC Substrates &amp; Interposer\" id=\"form-field-field_c168eb1-9\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-9\">IC Substrates & Interposer<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"High TG PCBs\" id=\"form-field-field_c168eb1-10\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-10\">High TG PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Heavy Copper\" id=\"form-field-field_c168eb1-11\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-11\">Heavy Copper<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"PCB Assembly\" id=\"form-field-field_c168eb1-12\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-12\">PCB Assembly<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Components Sourcing\" id=\"form-field-field_c168eb1-13\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-13\">Components Sourcing<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Other\" id=\"form-field-field_c168eb1-14\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-14\">Other<\/label><\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_2cea676 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_2cea676\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tUpload Your Files (Optional)\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_2cea676]\" id=\"form-field-field_2cea676\" class=\"elementor-field elementor-size-sm  elementor-upload-field\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-field_9ceb2c8 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_9ceb2c8\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[field_9ceb2c8]\" id=\"form-field-field_9ceb2c8\" rows=\"4\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Submit<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-123957a9\" data-id=\"123957a9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table of Contents In the design of modern electronics, achieving a compact size, high reliability and seamless module integration is more important than ever. \u00a0Castellated holes, or plated half-holes, have become a practical solution for\u00a0making\u00a0direct board-to-board joining possible without using big connectors or making a mess with wires. They are mainly used in wireless modules, [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":21908,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[134],"class_list":["post-21906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-pcb-design"],"_links":{"self":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/21906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/comments?post=21906"}],"version-history":[{"count":23,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/21906\/revisions"}],"predecessor-version":[{"id":21933,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/21906\/revisions\/21933"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/media\/21908"}],"wp:attachment":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/media?parent=21906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/categories?post=21906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/tags?post=21906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}