{"id":35013,"date":"2025-12-25T14:58:17","date_gmt":"2025-12-25T06:58:17","guid":{"rendered":"https:\/\/pcbcool.com\/?p=35013"},"modified":"2026-01-13T18:00:11","modified_gmt":"2026-01-13T10:00:11","slug":"common-pcb-defects-and-how-to-prevent-them","status":"publish","type":"post","link":"https:\/\/pcbcool.com\/pt-br\/technical-guides\/common-pcb-defects-and-how-to-prevent-them\/","title":{"rendered":"5 Defeitos Mais Comuns em Placas de Circuito Impresso e Como Evit\u00e1-los"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"35013\" class=\"elementor elementor-35013\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-6bff3ff e-flex e-con-boxed e-con e-parent\" data-id=\"6bff3ff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6abee4e e-con-full e-flex e-con e-child\" data-id=\"6abee4e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-78ebb0a color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"78ebb0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>prot\u00f3tipos baseados em Arduino s\u00e3o amplamente elogiados por seus <strong>facilidade de uso e desenvolvimento r\u00e1pido<\/strong>, mas ao se mudar para <strong>produ\u00e7\u00e3o de PCBA personalizada<\/strong>, mesmo defeitos de fabrica\u00e7\u00e3o sutis podem levar a <strong>falhas de campo de dif\u00edcil diagn\u00f3stico<\/strong>. Em nosso laborat\u00f3rio de an\u00e1lise de falhas de PCB, descobrimos que mais de <strong>65% de falhas \u201cmisteriosas\u201d<\/strong> em placas derivadas do Arduino <strong>n\u00e3o causado por c\u00f3digo ou componentes<\/strong>, mas por <strong>vulnerabilidades de fabrica\u00e7\u00e3o induzidas pelo layout<\/strong> (<em>Pesquisa de Modos de Falha do IPC, 2024<\/em>. Neste artigo, exploramos a <strong>cinco modos de falha mais comuns em n\u00edvel de PCB<\/strong> e fornecer estrat\u00e9gias acion\u00e1veis para <strong>prevenir esses problemas antes da fabrica\u00e7\u00e3o<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f42f3a5 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"f42f3a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Defeito 1: Tombstoning em Capacitores de Desacoplamento 0402<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-4badf82 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"4badf82\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Sintoma:<\/strong> Reinicializa\u00e7\u00f5es intermitentes da MCU; o dispositivo retoma a opera\u00e7\u00e3o normal ap\u00f3s <strong>Refluxo localizado<\/strong>.<\/p><p><strong>Mecanismo:<\/strong> Durante a soldagem por refluxo, <strong>carregamento t\u00e9rmico assim\u00e9trico<\/strong> pode causar que uma extremidade de um pequeno capacitor <strong>derreter antes do outro<\/strong>, permitindo <strong>Tens\u00e3o superficial<\/strong> para erguer o componente \u2014 semelhante a uma l\u00e1pide<em>IPC-A-610H, Se\u00e7\u00e3o 8.3.10, 2024<\/em>Este fen\u00f4meno \u00e9 particularmente prevalente com <strong>Capacitores de desacoplamento 0402 pr\u00f3ximos a MCUs<\/strong> (por exemplo, 100 nF em AVCC), onde <strong>uma pad se conecta a um grande plano de cobre<\/strong> E o outro est\u00e1 acoplado a um tra\u00e7o menor.<\/p><p><strong>Exemplo do Mundo Real:<\/strong> O sensor de solo baseado em ATmega328P de um cliente apresentou <strong>Falhas intermitentes do 41%<\/strong>. A inspe\u00e7\u00e3o por raio-X revelou que <strong>Os capacitores de desacoplamento 28% de 0402 foram dispostos em forma de \u201ctombstone\u201d<\/strong> (Fig. 1). A causa raiz: <strong>O Pad 1 estava diretamente conectado a uma malha de terra de 50 mm\u00b2.<\/strong>, enquanto o Tablet 2 conectado a um <strong>tra\u00e7o isolado<\/strong>, criando um desequil\u00edbrio t\u00e9rmico.<\/p><p><strong>Estrat\u00e9gias de Preven\u00e7\u00e3o:<\/strong><\/p><ul><li>Utilize pads NSMD sim\u00e9tricas (ex: 0,6 \u00d7 0,7 mm para componentes 0402).<\/li><li>Aplicar al\u00edvio t\u00e9rmico em apenas um pad (fio \u00fanico de 0,2 mm) para balancear a dissipa\u00e7\u00e3o de calor.<\/li><li>Manter a raz\u00e3o da \u00e1rea de cobre de pad \u2264 2:1 para reduzir o aquecimento assim\u00e9trico.<\/li><li>Especificar pasta de solda Tipo 3; tamanhos de part\u00edcula menores melhoram a uniformidade de molhagem.<\/li><\/ul><div id=\"attachment_35047\" style=\"width: 381px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35047\" class=\"wd-lazy-fade wp-image-35047 size-full\" src=\"https:\/\/pcbcool.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Tombstoned-0402-capacitor-showing-classic-lift-with-solder-fillet-on-one-end-only.jpg\" alt=\"Capacitor de montagem em superf\u00edcie (SMD) 0402, apresentando levantamento cl\u00e1ssico com filete de solda em uma extremidade apenas\" width=\"371\" height=\"268\" srcset=\"\" data-srcset=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Tombstoned-0402-capacitor-showing-classic-lift-with-solder-fillet-on-one-end-only.jpg 371w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Tombstoned-0402-capacitor-showing-classic-lift-with-solder-fillet-on-one-end-only-150x108.jpg 150w\" sizes=\"auto, (max-width: 371px) 100vw, 371px\" \/><p id=\"caption-attachment-35047\" class=\"wp-caption-text\">Capacitor de montagem em superf\u00edcie (SMD) 0402, apresentando levantamento cl\u00e1ssico com filete de solda em uma extremidade apenas<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0401398 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"0401398\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Defeito 2: Vacuidade em Via sob Pad T\u00e9rmico de QFN<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-8034c0e color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"8034c0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Sintoma:<\/strong> <strong>Superaquecimento sob carga<\/strong>; os dispositivos acionam o desligamento t\u00e9rmico ap\u00f3s 10\u201315 minutos de opera\u00e7\u00e3o.<\/p><p><strong>Mecanismo:<\/strong> Vias localizadas <strong>diretamente sob as pastilhas t\u00e9rmicas do QFN<\/strong> (por exemplo, ESP32-WROOM, AMS1117) pode <strong>fluxo de armadilha e umidade<\/strong> durante a montagem. Durante a refus\u00e3o, a expans\u00e3o do vapor forma vazios, que podem reduzir <strong>condutividade t\u00e9rmica em at\u00e9 40%<\/strong> (<em>IPC-7095D, Se\u00e7\u00e3o 5.4.2, 2025<\/em>. Vias n\u00e3o preenchidas frequentemente exibem <strong>&gt;\u00c1rea vazia 30%<\/strong>, dificultando significativamente a transfer\u00eancia de calor do matriz para a PCB.<\/p><p><strong>Data:<\/strong> An\u00e1lise transversal de 120 placas ESP32 revelou:<\/p><ul><li><em>Vias n\u00e3o preenchidas:<\/em> vazio m\u00e9dio = 37%<\/li><li><em>Vias preenchidas e encapadas (Tipo VII IPC):<\/em> vazio m\u00e9dio = 6%<\/li><\/ul><p><strong>Recomenda\u00e7\u00f5es de Design:<\/strong><\/p><ul><li>Evite vias em pastilhas t\u00e9rmicas menores que 3 \u00d7 3 mm sempre que poss\u00edvel.<\/li><li>Caso as vias sejam necess\u00e1rias (por exemplo, em uma pilha de 4 camadas), especifique vias preenchidas e seladas (IPC-4761 Tipo VII) para minimizar a forma\u00e7\u00e3o de vazios.<\/li><li>Limite por contagem: \u22648 para um pad de 4 \u00d7 4 mm, e posicionamento escalonado para evitar o \u201cefeito chamin\u00e9\u201d.\u201d<\/li><\/ul><div id=\"attachment_35055\" style=\"width: 527px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35055\" class=\"wd-lazy-fade wp-image-35055 size-full\" src=\"https:\/\/pcbcool.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/X-ray-cross-section-showing-via-in-pad-voiding-illustrating-how-voids-impair-thermal-conduction-from-the-die-to-the-PCB.jpg\" alt=\"Se\u00e7\u00e3o transversal de raio-x mostrando vazios em vias de pad, ilustrando como os vazios prejudicam a condu\u00e7\u00e3o t\u00e9rmica do die para a PCB\" width=\"517\" height=\"378\" srcset=\"\" data-srcset=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/X-ray-cross-section-showing-via-in-pad-voiding-illustrating-how-voids-impair-thermal-conduction-from-the-die-to-the-PCB.jpg 517w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/X-ray-cross-section-showing-via-in-pad-voiding-illustrating-how-voids-impair-thermal-conduction-from-the-die-to-the-PCB-150x110.jpg 150w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/X-ray-cross-section-showing-via-in-pad-voiding-illustrating-how-voids-impair-thermal-conduction-from-the-die-to-the-PCB-400x292.jpg 400w\" sizes=\"auto, (max-width: 517px) 100vw, 517px\" \/><p id=\"caption-attachment-35055\" class=\"wp-caption-text\">Corte transversal de raio X mostrando vazios em via em pad, ilustrando como os vazios prejudicam a condu\u00e7\u00e3o t\u00e9rmica do die para a PCB<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1230fb3 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"1230fb3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Defeito 3: Ponte de Solda em TQFPs de Passo de 0,5 mm<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-f5b1435 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f5b1435\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Sintoma:<\/strong> <strong>Pinos GPIO presos em n\u00edvel alto ou baixo<\/strong>; <strong>Falhas na enumera\u00e7\u00e3o USB<\/strong> durante a inicializa\u00e7\u00e3o do dispositivo.<\/p><p><strong>Mecanismo:<\/strong> Excesso <strong>pasta de solda<\/strong> em <strong>Leads de passo apertado<\/strong> (por exemplo, ATmega328P-AU, TQFP de 32 pinos) podem causar <strong>Ponte<\/strong>, particularmente entre pinos <strong>15\u201317<\/strong> (AVCC\/GND\/AREF) onde <strong>A massa t\u00e9rmica difere<\/strong>. Um padr\u00e3o <strong>Espessura do est\u00eancil de 0,15 mm<\/strong> frequentemente \u00e9 muito espesso para <strong>0,5 mil\u00edmetro de passo<\/strong>, exacerbando o risco de curtos-circuitos.<\/p><p><strong>Estrat\u00e9gias de Preven\u00e7\u00e3o:<\/strong><\/p><ul><li>Utilize pads NSMD (non-solder mask defined) para melhorar a libera\u00e7\u00e3o de pasta e reduzir o *bridging*.<\/li><li>Reduza a abertura do est\u00eancil para aproximadamente 85% da \u00e1rea do pad, a fim de limitar o volume de solda.<\/li><li>Incorpore pontes de m\u00e1scara de solda \u22650,075 mm entre pads adjacentes.<\/li><li>Especifique pasta de solda Tipo 4 (esferas de 25\u201336 \u00b5m) para componentes de passo fino para garantir molhagem consistente.<\/li><\/ul><div id=\"attachment_35056\" style=\"width: 371px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35056\" class=\"wd-lazy-fade wp-image-35056 size-full\" src=\"https:\/\/pcbcool.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Example-of-solder-bridging-on-TQFP-pins-illustrating-how-excess-paste-can-connect-adjacent-leads.jpg\" alt=\"Exemplo de ponte de solda em pinos TQFP, ilustrando como o excesso de pasta pode conectar leads adjacentes\" width=\"361\" height=\"178\" srcset=\"\" data-srcset=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Example-of-solder-bridging-on-TQFP-pins-illustrating-how-excess-paste-can-connect-adjacent-leads.jpg 361w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Example-of-solder-bridging-on-TQFP-pins-illustrating-how-excess-paste-can-connect-adjacent-leads-150x74.jpg 150w\" sizes=\"auto, (max-width: 361px) 100vw, 361px\" \/><p id=\"caption-attachment-35056\" class=\"wp-caption-text\">Exemplo de ponte de solda em pinos TQFP, ilustrando como o excesso de pasta pode conectar leads adjacentes<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-63315af wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"63315af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Defeito 4: Delamina\u00e7\u00e3o de Trilha em N\u00f3s de Alta Corrente<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-463a197 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"463a197\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Sintoma:<\/strong> Aud\u00edvel\u201c<strong>Pop<\/strong>\u201d e <strong>Cheiro de queimado<\/strong> pr\u00f3ximo a \u00e1reas de alta corrente, como <strong>Conectores tipo barril<\/strong> ou <strong>Drivers de motor<\/strong>.<\/p><p><strong>Mecanismo:<\/strong> Trilhas finas de PCB (por exemplo, <strong>0,2 mm<\/strong>transportando correntes <strong>&gt;300 mA<\/strong> pode superaquecer, excedendo o <strong>Temperatura de transi\u00e7\u00e3o v\u00edtrea (Tg \u2248 135\u00b0C) do FR-4<\/strong>. O <strong>A resina se decomp\u00f5e<\/strong>, causando <strong>tra\u00e7o de descolamento ou delamina\u00e7\u00e3o<\/strong> (<em>IPC-TM-650 2.4.23, \u201cTeste de Tens\u00e3o T\u00e9rmica\u201d<\/em>).<\/p><p><strong>Diretrizes de Projeto (IPC-2221B, Tabela 6-4):<\/strong><\/p><table><thead><tr><th>Atual<\/th><th>1 on\u00e7a de Cobre (aumento de 10\u00b0C)<\/th><th>1 oz de Cobre (Aumento de 20\u00b0C)<\/th><\/tr><\/thead><tbody><tr><td>500 mA<\/td><td>0,25 mm<\/td><td>0,18 mm<\/td><\/tr><tr><td>1 A<\/td><td>0,63 mm<\/td><td>0,45 mm<\/td><\/tr><\/tbody><\/table><p><strong>Melhores Pr\u00e1ticas:<\/strong><\/p><ul><li>Para entradas de conector P2 de 12V, utilize trilhas com largura igual ou superior a 0,5 mm para suportar corrente alta com seguran\u00e7a.<\/li><li>Evite dobras de 90\u00b0 pr\u00f3ximas a vias, pois elas atuam como concentradores de tens\u00e3o.<\/li><li>Utilize al\u00edvios t\u00e9rmicos em barris de vias (4 raios, v\u00e3os de 0,25 mm) para reduzir as tens\u00f5es mec\u00e2nicas e t\u00e9rmicas.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76de524 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"76de524\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Defeito 5: \"Popcorning\" Induzido por Umidade em BGAs<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-bab3b50 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"bab3b50\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Sintoma:<\/strong> Os dispositivos inicialmente funcionam corretamente, mas <strong>falha ap\u00f3s 1\u20133 semanas<\/strong> Em <strong>ambientes \u00famidos<\/strong>, como sensores de estufa.<\/p><p><strong>Mecanismo:<\/strong> <strong>Dispositivos sens\u00edveis \u00e0 umidade (N\u00edvel de umidade 3+)<\/strong> (exemplo: ESP32-WROVER) <strong>absorver a humidade ambiente<\/strong>. Durante a refus\u00e3o, <strong>A expans\u00e3o r\u00e1pida do vapor causa rachaduras nas camadas internas de ep\u00f3xi.<\/strong>, levando a <strong>Pipocar<\/strong> falhas<em>JEDEC J-STD-033D, Se\u00e7\u00e3o 7.3, 2023<\/em>).<\/p><p><strong>Protocolo de Preven\u00e7\u00e3o:<\/strong><\/p><ul><li>Asse as pe\u00e7as MSD N\u00edvel 3+ a 125\u00b0C por 24 horas antes da montagem.<\/li><li>Armazene os componentes em embalagem seca (\u226410% de umidade relativa) com cart\u00f5es indicadores de umidade.<\/li><li>Limitar a vida \u00fatil do andar a \u2264168 horas ap\u00f3s a abertura do saco.<\/li><li>Para compila\u00e7\u00f5es de baixo volume, considere componentes through-hole (por exemplo, ATmega328P-PU, MSD N\u00edvel 1 \u2013 n\u00e3o requer cozimento\/cura).<\/li><\/ul><div id=\"attachment_35069\" style=\"width: 715px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35069\" class=\"wd-lazy-fade wp-image-35069 size-full\" src=\"https:\/\/pcbcool.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Popcorning-failure-in-a-BGA-showing-internal-delamination-after-moisture-reflow\u2014validates-the-necessity-of-bake-cycles.jpg\" alt=\"Ressecamento em BGA, apresentando delamina\u00e7\u00e3o interna ap\u00f3s reflow com umidade \u2013 valida a necessidade de ciclos de secagem.\" width=\"705\" height=\"340\" srcset=\"\" data-srcset=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Popcorning-failure-in-a-BGA-showing-internal-delamination-after-moisture-reflow\u2014validates-the-necessity-of-bake-cycles.jpg 705w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Popcorning-failure-in-a-BGA-showing-internal-delamination-after-moisture-reflow\u2014validates-the-necessity-of-bake-cycles-150x72.jpg 150w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Popcorning-failure-in-a-BGA-showing-internal-delamination-after-moisture-reflow\u2014validates-the-necessity-of-bake-cycles-600x289.jpg 600w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/Popcorning-failure-in-a-BGA-showing-internal-delamination-after-moisture-reflow\u2014validates-the-necessity-of-bake-cycles-400x193.jpg 400w\" sizes=\"auto, (max-width: 705px) 100vw, 705px\" \/><p id=\"caption-attachment-35069\" class=\"wp-caption-text\">Ressecamento em BGA, apresentando delamina\u00e7\u00e3o interna ap\u00f3s reflow com umidade \u2013 valida a necessidade de ciclos de secagem.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14e8d0e wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"14e8d0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Custo de Ignorar Defeitos em Placas de Circuito Impresso<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-c449b22 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c449b22\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<table><thead><tr><th>Defeito<\/th><th>Custo M\u00e9dio de Retrabalho (100 unidades, 4 camadas)<\/th><th>Custo de Preven\u00e7\u00e3o<\/th><th>Retorno sobre o Investimento<\/th><\/tr><\/thead><tbody><tr><td>Tombstoning<\/td><td>$1.800 (nova tentativa + m\u00e3o de obra)<\/td><td>$0 (verifica\u00e7\u00e3o do layout)<\/td><td>\u221e<\/td><\/tr><tr><td>Via anula\u00e7\u00e3o<\/td><td>$2.300 (falha t\u00e9rmica \/ devolu\u00e7\u00f5es de campo)<\/td><td>$0,15 por unidade (vias preenchidas)<\/td><td>15,000%<\/td><\/tr><tr><td>Pontes<\/td><td>$1.500 (esta\u00e7\u00e3o de retrabalho + refugo)<\/td><td>$50 (otimiza\u00e7\u00e3o de est\u00eancil)<\/td><td>3,000%<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-beddbc8 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"beddbc8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Lista de Verifica\u00e7\u00e3o DFM para Prot\u00f3tipos de PCB<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-3b4c04c color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3b4c04c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<table><thead><tr><th>Verificar<\/th><th>Ferramenta<\/th><th>Crit\u00e9rios de Aprova\u00e7\u00e3o<\/th><\/tr><\/thead><tbody><tr><td>Risco de tombamento<\/td><td>Simula\u00e7\u00e3o t\u00e9rmica (ex.: Siemens Simcenter)<\/td><td>\u0394T &lt; 2,5\u00b0C nas pastilhas 0402<\/td><\/tr><tr><td>Via anula\u00e7\u00e3o<\/td><td>An\u00e1lise de sec\u00e7\u00e3o transversal (IPC-TM-650 2.4.22)<\/td><td>\u00c1rea de contato inferior a 25%<\/td><\/tr><tr><td>Mitiga\u00e7\u00e3o de risco<\/td><td>Colar est\u00eancil para DRC (por exemplo, Valor NPI)<\/td><td>Abertura \u2264 85% da \u00e1rea do pad<\/td><\/tr><tr><td>Tra\u00e7ar corrente<\/td><td>Saturn PCB Toolkit v9.2 (gratuito)<\/td><td>Aumento de temperatura \u2264 20\u00b0C<\/td><\/tr><tr><td>Conformidade MSD<\/td><td>Inspe\u00e7\u00e3o de etiquetas JEDEC<\/td><td>Data de validade ap\u00f3s a data de montagem<\/td><\/tr><\/tbody><\/table><p><strong>Dica Profissional: Aproveite o DFM gratuito oferecido pelo seu fabricante de PCBs<\/strong><\/p><p>F\u00e1bricas conceituadas (por exemplo, <a href=\"https:\/\/pcbcool.com\/pt-br\/\">PCBCool<\/a>) fornecer relat\u00f3rios automatizados de DFM (Design for Manufacturability) durante o upload. O envio antecipado pode identificar problemas antes da produ\u00e7\u00e3o, economizando milhares em retrabalhos. Para projetos cr\u00edticos, solicite:<\/p><ul><li>AOI (Automated Optical Inspection) para componentes passivos<\/li><li>AXI (Inspe\u00e7\u00e3o Automatizada por Raios-X) para QFN\/BGA<\/li><li>Testemunhos de imped\u00e2ncia para tra\u00e7os de alta velocidade<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e5baa3 wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"5e5baa3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Considera\u00e7\u00f5es Finais<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-7bbfb84 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"7bbfb84\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>O Arduino democratiza a funcionalidade, mas a produ\u00e7\u00e3o de PCBA exige disciplina. O c\u00f3digo mais elegante n\u00e3o compensa um layout que ignora a f\u00edsica da fabrica\u00e7\u00e3o. Ao projetar tendo o processo em mente, suas placas ser\u00e3o enviadas no prazo, atender\u00e3o \u00e0s especifica\u00e7\u00f5es e permanecer\u00e3o dentro do or\u00e7amento.<\/p><p>Para engenheiros que buscam fabrica\u00e7\u00e3o e montagem de PCB confi\u00e1veis, a PCBCool oferece solu\u00e7\u00f5es de ponta a ponta \u2014 da prototipagem \u00e0 produ\u00e7\u00e3o em massa \u2014 garantindo que seus projetos tenham um desempenho impec\u00e1vel em campo.<\/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\t\t<\/div>\n\t\t<div class=\"wd-negative-gap elementor-element elementor-element-1620e06 e-flex e-con-boxed e-con e-parent\" data-id=\"1620e06\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-002415e e-con-full e-flex e-con e-child\" data-id=\"002415e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d03ca06 e-con-full e-flex e-con e-child\" data-id=\"d03ca06\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9c373aa wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"9c373aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-primary wd-title-style-underlined wd-title-size-large text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<h2 class=\"woodmart-title-container title wd-fontsize-xxl\">Perguntas Frequentes (FAQ)<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-a8ce272 elementor-widget elementor-widget-wd_accordion\" data-id=\"a8ce272\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<div class=\"wd-accordion wd-style-default wd-titles-left wd-opener-pos-left wd-opener-style-arrow\" data-state=\"first\">\n\t\t\t\t\t\t\t\n\t\t\t\t<div class=\"wd-accordion-item\">\n\t\t\t\t\t<div class=\"wd-accordion-title wd-role-btn wd-active\" data-accordion-index=\"0\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"wd-accordion-title-text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t\t1. Qual \u00e9 a causa principal do tombstoning em capacitores pequenos?\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<span class=\"wd-accordion-opener\"><\/span>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-accordion-content wd-entry-content wd-active\" data-accordion-index=\"0\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<p>O tombstone (ou \"efeito l\u00e1pide\") ocorre tipicamente devido a carregamento t\u00e9rmico assim\u00e9trico durante a refus\u00e3o, onde um pad aquece mais r\u00e1pido que o outro.<\/p>\n\t\t\t\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\t\t\n\t\t\t\t<div class=\"wd-accordion-item\">\n\t\t\t\t\t<div class=\"wd-accordion-title wd-role-btn\" data-accordion-index=\"1\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"wd-accordion-title-text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t\t2. Como posso prevenir a forma\u00e7\u00e3o de vazios no pad de via sob os pads t\u00e9rmicos?\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<span class=\"wd-accordion-opener\"><\/span>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-accordion-content wd-entry-content\" data-accordion-index=\"1\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<p>Evite, sempre que poss\u00edvel, colocar vias diretamente sob os \u201cthermal pads\u201d de QFN. Se necess\u00e1rio, utilize vias preenchidas e tampadas (IPC Tipo VII), limite a contagem de vias e intercale a coloca\u00e7\u00e3o das vias para prevenir o \"efeito chamin\u00e9\".<\/p>\n\t\t\t\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\t\t\n\t\t\t\t<div class=\"wd-accordion-item\">\n\t\t\t\t\t<div class=\"wd-accordion-title wd-role-btn\" data-accordion-index=\"2\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"wd-accordion-title-text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t\t3. Por que ocorrem pontes de solda em CIs de passo fino?\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<span class=\"wd-accordion-opener\"><\/span>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-accordion-content wd-entry-content\" data-accordion-index=\"2\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<p>Soldagem em ponte ocorre quando a pasta de solda em excesso e o espa\u00e7amento apertado entre os pinos causam curtos-circuitos em pinos adjacentes.<\/p>\n\t\t\t\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\t\t\n\t\t\t\t<div class=\"wd-accordion-item\">\n\t\t\t\t\t<div class=\"wd-accordion-title wd-role-btn\" data-accordion-index=\"3\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"wd-accordion-title-text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t\t4. Como evitar a delamina\u00e7\u00e3o em trilhas de alta corrente?\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<span class=\"wd-accordion-opener\"><\/span>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-accordion-content wd-entry-content\" data-accordion-index=\"3\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<p>Certifique-se de que as trilhas sejam largas o suficiente para suportar a corrente esperada, evite curvas de 90\u00b0 pr\u00f3ximas a vias e utilize relevos t\u00e9rmicos para reduzir o estresse t\u00e9rmico localizado.<\/p>\n\t\t\t\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\t\t\n\t\t\t\t<div class=\"wd-accordion-item\">\n\t\t\t\t\t<div class=\"wd-accordion-title wd-role-btn\" data-accordion-index=\"4\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"wd-accordion-title-text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t\t5. Os verifica\u00e7\u00f5es de DFM realmente podem prevenir esses defeitos?\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<span class=\"wd-accordion-opener\"><\/span>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-accordion-content wd-entry-content\" data-accordion-index=\"4\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<p>Sim. A realiza\u00e7\u00e3o da an\u00e1lise DFM \u2014 incluindo simula\u00e7\u00f5es t\u00e9rmicas, inspe\u00e7\u00f5es de corte transversal e verifica\u00e7\u00f5es de est\u00eancil de pasta \u2014 identifica riscos potenciais antes da fabrica\u00e7\u00e3o, reduzindo custosos retrabalhos e falhas em campo.<\/p>\n\t\t\t\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\t\t\n\t\t\t\t<div class=\"wd-accordion-item\">\n\t\t\t\t\t<div class=\"wd-accordion-title wd-role-btn\" data-accordion-index=\"5\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"wd-accordion-title-text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span>\n\t\t\t\t\t\t\t\t6. Estas pr\u00e1ticas de preven\u00e7\u00e3o de defeitos s\u00e3o aplic\u00e1veis a prot\u00f3tipos e placas de produ\u00e7\u00e3o?\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<span class=\"wd-accordion-opener\"><\/span>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"wd-accordion-content wd-entry-content\" data-accordion-index=\"5\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<p>Com certeza. Os princ\u00edpios de balan\u00e7o t\u00e9rmico, controle de pasta, gerenciamento de vias, dimensionamento de trilhas e tratamento de umidade se aplicam tanto a prot\u00f3tipos quanto \u00e0 produ\u00e7\u00e3o em massa de PCBs.<\/p>\n\t\t\t\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\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c9684d elementor-widget elementor-widget-shortcode\" data-id=\"5c9684d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t\t<link rel=\"stylesheet\" id=\"elementor-post-35582-css\" href=\"https:\/\/pcbcool.com\/wp-content\/uploads\/elementor\/css\/post-35582.css?ver=1783499759\" type=\"text\/css\" media=\"all\">\n\t\t\t\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"35582\" class=\"elementor elementor-35582\" data-elementor-post-type=\"cms_block\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-f6159f8 e-flex e-con-boxed e-con e-parent\" data-id=\"f6159f8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a03266c e-con-full e-flex e-con e-child\" data-id=\"a03266c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-09accce e-con-full e-flex e-con e-child\" data-id=\"09accce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-773405d elementor-widget elementor-widget-image\" data-id=\"773405d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"250\" src=\"https:\/\/pcbcool.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/George.jpg\" class=\"wd-lazy-fade attachment-full size-full wp-image-35271\" alt=\"Jorge\" srcset=\"\" data-srcset=\"https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/George.jpg 250w, https:\/\/pcbcool.com\/wp-content\/uploads\/2025\/12\/George-150x150.jpg 150w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/>\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<div class=\"elementor-element elementor-element-39912a8 e-con-full e-flex e-con e-child\" data-id=\"39912a8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b1b555d wd-width-100 elementor-widget elementor-widget-wd_title\" data-id=\"b1b555d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"title-wrapper wd-set-mb reset-last-child wd-title-color-default wd-title-style-default wd-title-size-default text-left\">\n\n\t\t\t\n\t\t\t<div class=\"liner-continer\">\n\t\t\t\t<div class=\"woodmart-title-container title wd-fontsize-l\">George | Engenheiro Eletricista e Especialista em Sistemas Embarcados<\/div> \n\t\t\t\t\t\t\t<\/div>\n\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<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0a641fa e-con-full e-flex e-con e-child\" data-id=\"0a641fa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d15406f color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d15406f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>George \u00e9 um engenheiro eletricista certificado com experi\u00eancia em design de PCB, sistemas embarcados e desenvolvimento de hardware IoT. Ele trabalha com a PCBCool para transformar experi\u00eancia de engenharia real em guias pr\u00e1ticos para desenvolvedores e engenheiros.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b70a6bd elementor-widget elementor-widget-html\" data-id=\"b70a6bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<div class=\"custom-btn-wrapper\">\r\n  <a href=\"https:\/\/pcbcool.com\/pt-br\/author\/george\/\" class=\"custom-btn\">Leia Mais Artigos de George \u2192<\/a>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Descubra os 5 defeitos mais comuns em placas de circuito impresso (PCBs) \u2014 de \"tombstoning\" a \"popcorning\" induzido por umidade \u2014 e aprenda estrat\u00e9gias de preven\u00e7\u00e3o de especialistas para garantir placas confi\u00e1veis e de alta qualidade.<\/p>","protected":false},"author":8,"featured_media":37632,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"5 Defeitos Mais Comuns em Placas de Circuito Impresso (PCBs) e Como Preveni-los | PCBCool","description":"Descubra os 5 defeitos mais comuns em placas de circuito impresso (PCBs) \u2014 de \"tombstoning\" a \"popcorning\" induzido por umidade \u2014 e aprenda estrat\u00e9gias de preven\u00e7\u00e3o de especialistas para garantir placas confi\u00e1veis e de alta qualidade."},"footnotes":""},"categories":[113],"tags":[],"post_folder":[],"class_list":["post-35013","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-guides"],"_links":{"self":[{"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/posts\/35013","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/comments?post=35013"}],"version-history":[{"count":0,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/posts\/35013\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/media\/37632"}],"wp:attachment":[{"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/media?parent=35013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/categories?post=35013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/tags?post=35013"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/pcbcool.com\/pt-br\/wp-json\/wp\/v2\/post_folder?post=35013"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}