{"id":6840,"date":"2025-07-15T17:45:21","date_gmt":"2025-07-15T09:45:21","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=6840"},"modified":"2025-07-15T17:45:32","modified_gmt":"2025-07-15T09:45:32","slug":"what-are-the-stamp-holes-on-a-pcb","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/","title":{"rendered":"O que s\u00e3o os furos de carimbo em uma placa de circuito impresso?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><\/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:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Core_Definition_and_Functions_of_Stamp_Holes\" >Defini\u00e7\u00e3o e fun\u00e7\u00f5es b\u00e1sicas dos furos de carimbo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Technical_Parameters_of_Stamp_Holes\" >Par\u00e2metros t\u00e9cnicos dos furos para carimbos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Comparative_Analysis_with_V-CUT_Technology\" >An\u00e1lise comparativa com a tecnologia V-CUT<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#V-CUT_Characteristics\" >Caracter\u00edsticas V-CUT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Key_Benefits_of_Stamp_Holes\" >Principais benef\u00edcios dos furos para carimbo<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#IPC-Compliant_Design_Standards\" >Padr\u00f5es de design em conformidade com o IPC<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Preferred_Design_IPC-7351_Class_A\" >Projeto preferido (IPC-7351 Classe A)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#High-Risk_Designs_Class_C\" >Projetos de alto risco (Classe C)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Critical_Engineering_Practices\" >Pr\u00e1ticas cr\u00edticas de engenharia<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/#Typical_Application_Scenarios\" >Cen\u00e1rios t\u00edpicos de aplicativos<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Core_Definition_and_Functions_of_Stamp_Holes\"><\/span>Defini\u00e7\u00e3o e fun\u00e7\u00f5es b\u00e1sicas dos furos de carimbo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Os orif\u00edcios de carimbo de PCB (tamb\u00e9m conhecidos como abas de separa\u00e7\u00e3o ou orif\u00edcios de paineliza\u00e7\u00e3o) s\u00e3o conjuntos de pequenos orif\u00edcios de passagem projetados ao longo das bordas da PCB ou das conex\u00f5es do painel, nomeados por sua semelhan\u00e7a com bordas de carimbo perfuradas. Essa estrutura desempenha um papel fundamental na fabrica\u00e7\u00e3o de produtos eletr\u00f4nicos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Conex\u00e3o mec\u00e2nica e separabilidade<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Usa matrizes de microfuros passantes (normalmente 0,5 mm de di\u00e2metro, agrupados em conjuntos de 5 a 8) para interconex\u00f5es tempor\u00e1rias de PCBs<\/li>\n\n\n\n<li>Permite a separa\u00e7\u00e3o p\u00f3s-produ\u00e7\u00e3o por meio de quebra mec\u00e2nica sem equipamento de fresagem especializado<\/li>\n\n\n\n<li>Particularmente adequado para PCBs com formatos irregulares (por exemplo, circulares, contornos n\u00e3o lineares)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Conectividade el\u00e9trica<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Serve como um canal de transmiss\u00e3o de pot\u00eancia\/sinal em projetos modulares<\/li>\n\n\n\n<li>Requer considera\u00e7\u00f5es de correspond\u00eancia de imped\u00e2ncia para aplica\u00e7\u00f5es de alta frequ\u00eancia<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vantagens de fabrica\u00e7\u00e3o<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aumenta a efici\u00eancia da montagem SMT, permitindo que pequenas placas de circuito impresso atravessem as linhas de produ\u00e7\u00e3o como matrizes<\/li>\n\n\n\n<li>Reduz os custos de processamento em compara\u00e7\u00e3o com o V-CUT para separa\u00e7\u00e3o de placas complexas<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Technical_Parameters_of_Stamp_Holes\"><\/span>Par\u00e2metros t\u00e9cnicos dos furos para carimbos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Categoria de par\u00e2metro<\/th><th>Valor padr\u00e3o<\/th><th>Toler\u00e2ncia<\/th><th>Principais considera\u00e7\u00f5es<\/th><\/tr><\/thead><tbody><tr><td>Di\u00e2metro do furo<\/td><td>0,5 mm<\/td><td>\u00b10,05 mm<\/td><td>Deve exceder 1\/3 da espessura da placa<\/td><\/tr><tr><td>Passo do furo<\/td><td>0,76 mm<\/td><td>\u22650.3mm<\/td><td>Preven\u00e7\u00e3o de curto-circuito<\/td><\/tr><tr><td>Espa\u00e7amento entre linhas<\/td><td>3,3 mm<\/td><td>&#8211;<\/td><td>Equil\u00edbrio da for\u00e7a mec\u00e2nica<\/td><\/tr><tr><td>Margem da borda<\/td><td>1,0 mm<\/td><td>\u22650.5mm<\/td><td>Preven\u00e7\u00e3o de rebarbas<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Regras especiais de design<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Circuitos de alta frequ\u00eancia: Requer furos de aterramento blindados<\/li>\n\n\n\n<li>Placas de alta densidade:Recomenda layouts escalonados de duas fileiras<\/li>\n\n\n\n<li>Placas r\u00edgidas-flex\u00edveis:Requer zonas refor\u00e7adas<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1.jpg\" alt=\"Furos para carimbo em PCBs\" class=\"wp-image-6841\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-150x101.jpg 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comparative_Analysis_with_V-CUT_Technology\"><\/span>An\u00e1lise comparativa com a tecnologia V-CUT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"V-CUT_Characteristics\"><\/span>Caracter\u00edsticas V-CUT<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Aplicativos<\/strong>:Separa\u00e7\u00e3o de placas em linha reta, PCBs retangulares padr\u00e3o<\/li>\n\n\n\n<li><strong>Vantagens<\/strong>:<\/li>\n\n\n\n<li>~30% de redu\u00e7\u00e3o de custos (elimina etapas adicionais de perfura\u00e7\u00e3o)<\/li>\n\n\n\n<li>Post-separation edge flatness within \u00b10.1mm<\/li>\n\n\n\n<li>Ideal para produ\u00e7\u00e3o padronizada de alto volume<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Benefits_of_Stamp_Holes\"><\/span>Principais benef\u00edcios dos furos para carimbo<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Adaptabilidade geom\u00e9trica<\/strong>: Acomoda caminhos de separa\u00e7\u00e3o curvos<\/li>\n\n\n\n<li><strong>Desempenho mec\u00e2nico<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Resist\u00eancia \u00e0 flex\u00e3o 40% maior que a do V-CUT<\/li>\n\n\n\n<li>Permite um espa\u00e7amento menor entre as placas (m\u00ednimo de 1,5 mm)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Conveni\u00eancia de montagem<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Proporciona uma \u00e1rea de superf\u00edcie adesiva 25% maior<\/li>\n\n\n\n<li>Suporta desmontagem\/reconfigura\u00e7\u00e3o modular<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"IPC-Compliant_Design_Standards\"><\/span>Padr\u00f5es de design em conformidade com o IPC<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preferred_Design_IPC-7351_Class_A\"><\/span>Projeto preferido (IPC-7351 Classe A)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Trace-to-hole clearance \u22651mm<\/li>\n\n\n\n<li>Taxa de reten\u00e7\u00e3o de cobre &gt;80%<\/li>\n\n\n\n<li>Transi\u00e7\u00f5es de almofada em forma de l\u00e1grima<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"High-Risk_Designs_Class_C\"><\/span>Projetos de alto risco (Classe C)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Espa\u00e7amento entre tra\u00e7os e bordas &lt;0,5 mm<\/li>\n\n\n\n<li>Presen\u00e7a de transi\u00e7\u00f5es de tra\u00e7os em \u00e2ngulo reto<\/li>\n\n\n\n<li>Falta de barragens de m\u00e1scara de solda<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Critical_Engineering_Practices\"><\/span>Pr\u00e1ticas cr\u00edticas de engenharia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Proibi\u00e7\u00f5es de layout<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nenhum orif\u00edcio para carimbo a menos de 3 mm dos pacotes BGA<\/li>\n\n\n\n<li>Evite o roteamento paralelo de sinais de alta velocidade atrav\u00e9s de matrizes de orif\u00edcios<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Aprimoramentos de confiabilidade<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Adicionar margens de processo de 0,3 mm como zonas de prote\u00e7\u00e3o<\/li>\n\n\n\n<li>Implementar refor\u00e7o de malha de cobre em \u00e1reas de alto estresse<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Verifica\u00e7\u00f5es de capacidade de fabrica\u00e7\u00e3o<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ensure minimum hole diameter \u22651\/3 board thickness<\/li>\n\n\n\n<li>Verify whole wall copper thickness \u226518\u03bcm<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_Application_Scenarios\"><\/span>Cen\u00e1rios t\u00edpicos de aplicativos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dispositivos vest\u00edveis<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Permite transi\u00e7\u00f5es entre zonas r\u00edgidas e flex\u00edveis por meio de furos de estampagem<\/li>\n\n\n\n<li>Exemplo: Conex\u00f5es do m\u00f3dulo de frequ\u00eancia card\u00edaca do smartwatch<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sistemas de controle industrial<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fornece alinhamento mec\u00e2nico e interconex\u00e3o el\u00e9trica para placas empilhadas<\/li>\n\n\n\n<li>Estruturas de al\u00edvio de tens\u00e3o em projetos resistentes \u00e0 vibra\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Eletr\u00f4nica automotiva<\/strong>:<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Interfaces de servi\u00e7o modulares para placas de controle de ECU<\/li>\n\n\n\n<li>Solu\u00e7\u00f5es de conex\u00e3o redundante para ambientes de alta vibra\u00e7\u00e3o<\/li>\n\n\n\n<li><\/li>\n<\/ul>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Quando se trata de perfura\u00e7\u00e3o de PCB, \u00e9 fundamental ficar de olho em medidas como di\u00e2metro e espa\u00e7amento. Estamos comparando os benef\u00edcios da tecnologia de puncionamento e da tecnologia V-CUT. Tamb\u00e9m estamos sugerindo um projeto de tr\u00eas n\u00edveis com base no padr\u00e3o IPC-7351.<\/p>","protected":false},"author":2,"featured_media":6813,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-6840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the stamp holes on a PCB? - Topfastpcba<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topfastpcba.com\/pt\/what-are-the-stamp-holes-on-a-pcb\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the stamp holes on a PCB? - Topfastpcba\" \/>\n<meta property=\"og:description\" content=\"When it comes to PCB punching, it&#039;s key to keep an eye on measurements like diameter and spacing. 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