{"id":1543,"date":"2025-04-22T14:39:11","date_gmt":"2025-04-22T06:39:11","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=1543"},"modified":"2025-04-22T14:40:23","modified_gmt":"2025-04-22T06:40:23","slug":"pcb-electroplating-process","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/","title":{"rendered":"Processo de galvanoplastia de PCB"},"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\/pcb-electroplating-process\/#Classification_of_Electroplating_Processes\" >Classifica\u00e7\u00e3o dos processos de galvanoplastia<\/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\/pcb-electroplating-process\/#Process_Flow\" >Fluxo do processo<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#1_Acid_Dipping\" >1. Imers\u00e3o em \u00e1cido<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#2_Panel_Plating_Primary_Copper_Plating\" >2.Revestimento do painel (revestimento prim\u00e1rio de cobre)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#3_Acid_Cleaning\" >3.Limpeza com \u00e1cido<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#4_Microetching\" >4.Microetching<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#5_Pattern_Copper_Plating\" >5.Padr\u00e3o de revestimento de cobre<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#6_Tin_Plating\" >6.Estanhagem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#7_Gold_Plating\" >7.Revestimento de ouro<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#8_Nickel_Plating\" >8.Niquelagem<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/topfastpcba.com\/pt\/pcb-electroplating-process\/#Critical_Notes\" >Notas cr\u00edticas<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Classification_of_Electroplating_Processes\"><\/span><strong>Classifica\u00e7\u00e3o dos processos de galvanoplastia<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Revestimento de cobre brilhante com \u00e1cido, revestimento de n\u00edquel, revestimento de ouro, revestimento de estanho<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Process_Flow\"><\/span><strong>Fluxo do processo<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Acid Dip \u2192<\/li>\n\n\n\n<li>Panel Plating (Copper) \u2192<\/li>\n\n\n\n<li>Pattern Transfer \u2192<\/li>\n\n\n\n<li>Acid Cleaning \u2192<\/li>\n\n\n\n<li>Two-Stage Countercurrent Rinsing \u2192<\/li>\n\n\n\n<li>Microetching \u2192<\/li>\n\n\n\n<li>Two-Stage Countercurrent Rinsing \u2192<\/li>\n\n\n\n<li>Acid Dip \u2192<\/li>\n\n\n\n<li>Tin Plating \u2192<\/li>\n\n\n\n<li>Two-Stage Countercurrent Rinsing \u2192<\/li>\n\n\n\n<li>Acid Dip \u2192<\/li>\n\n\n\n<li>Pattern Copper Plating \u2192<\/li>\n\n\n\n<li>Two-Stage Countercurrent Rinsing \u2192<\/li>\n\n\n\n<li>Nickel Plating \u2192<\/li>\n\n\n\n<li>Two-Stage Water Rinsing \u2192<\/li>\n\n\n\n<li>Citric Acid Dip \u2192<\/li>\n\n\n\n<li>Gold Plating \u2192<\/li>\n\n\n\n<li>Recovery Rinse \u2192<\/li>\n\n\n\n<li>2-3 Stage DI Water Rinsing \u2192<\/li>\n\n\n\n<li>Secagem<\/li>\n<\/ol>\n\n\n\n<p><em>(Observa\u00e7\u00e3o: \"Enx\u00e1gue contracorrente\" refere-se a um m\u00e9todo de enx\u00e1gue com economia de \u00e1gua em que a \u00e1gua fresca flui no sentido oposto ao movimento da pe\u00e7a).<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Acid_Dipping\"><\/span><strong>1. Imers\u00e3o em \u00e1cido<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Remova os \u00f3xidos da superf\u00edcie e ative o painel<\/li>\n\n\n\n<li>Concentra\u00e7\u00e3o de \u00e1cido sulf\u00farico: 5%-10% (evita a instabilidade induzida pela dilui\u00e7\u00e3o)<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Controles principais<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tempo: Evite o excesso de imers\u00e3o para evitar a oxida\u00e7\u00e3o<\/li>\n\n\n\n<li>Manuten\u00e7\u00e3o: Substituir quando estiver turvo ou o teor de cobre exceder 20g\/L<\/li>\n\n\n\n<li>Produto qu\u00edmico: use \u00e1cido sulf\u00farico de grau CP<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Panel_Plating_Primary_Copper_Plating\"><\/span><strong>2.Revestimento do painel (revestimento prim\u00e1rio de cobre)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Proteger dep\u00f3sitos finos de cobre sem eletr\u00f3lito contra oxida\u00e7\u00e3o\/grava\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Par\u00e2metros do processo<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-acid, low-copper formula (H\u2082SO\u2084: 180-240g\/L, CuSO\u2084: 75g\/L)<\/li>\n\n\n\n<li>Aditivos: \u00cdons de cloreto (aux\u00edlio ao branqueador), branqueador de cobre (dose inicial de 3-5 ml\/L)<\/li>\n\n\n\n<li>Current density: 2A\/dm\u00b2 (Calculation: Panel length \u00d7 width \u00d7 2 \u00d7 2A\/dm\u00b2)<\/li>\n\n\n\n<li>Temperature: 22-32\u00b0C (cooling system recommended)<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Manuten\u00e7\u00e3o<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Diariamente<\/strong>: Reabastecimento de abrilhantador (100-150 ml\/KAH), verifica\u00e7\u00f5es da bomba do filtro<\/li>\n\n\n\n<li><strong>Semanal<\/strong>: Composition analysis (CuSO\u2084\/H\u2082SO\u2084\/Cl\u207b), Hull cell testing<\/li>\n\n\n\n<li><strong>Mensal<\/strong>: Limpeza da cesta de \u00e2nodos, filtragem de carbono (6-8 horas)<\/li>\n\n\n\n<li><strong>Anual<\/strong>Tratamento com carbono (conforme necess\u00e1rio)<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Procedimento de tratamento principal<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anode prep: Micro-etching \u2192 Alkaline\/acid soaking<\/li>\n\n\n\n<li>Bath treatment: H\u2082O\u2082 oxidation \u2192 Carbon adsorption \u2192 Filtration \u2192 Electrolysis<\/li>\n\n\n\n<li>Parameter adjustment: Restore H\u2082SO\u2084\/CuSO\u2084\/Cl\u207b levels<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Acid_Cleaning\"><\/span><strong>3.Limpeza com \u00e1cido<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Remover \u00f3xidos\/res\u00edduos para garantir a ader\u00eancia do revestimento de padr\u00f5es<\/li>\n\n\n\n<li><strong>\u00c1cido (n\u00e3o alcalino)<\/strong>: Evita danos resistentes<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Controles<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Concentra\u00e7\u00e3o: 10%<\/li>\n\n\n\n<li>Time: \u22656 minutes<\/li>\n\n\n\n<li>Bath life: 15m\u00b2\/L working solution<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Microetching\"><\/span><strong>4.Microetching<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tornar a superf\u00edcie de cobre mais \u00e1spera para melhorar a liga\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Par\u00e2metros<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Condicionador: Persulfato de s\u00f3dio (60g\/L)<\/li>\n\n\n\n<li>Tempo: 20 segundos<\/li>\n\n\n\n<li>Limite de cobre: &lt;20g\/L<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Pattern_Copper_Plating\"><\/span><strong>5.Padr\u00e3o de revestimento de cobre<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aumente a espessura do cobre para obter capacidade de condu\u00e7\u00e3o de corrente<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Processo<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Igual ao revestimento do painel<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Tin_Plating\"><\/span><strong>6.Estanhagem<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Serve como resist\u00eancia de grava\u00e7\u00e3o para circuitos<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Par\u00e2metros<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bath: Stannous sulfate (35g\/L), H\u2082SO\u2084 (10%)<\/li>\n\n\n\n<li>Current density: 1.5A\/dm\u00b2<\/li>\n\n\n\n<li>Temperature: 22-30\u00b0C (cooling required)<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Manuten\u00e7\u00e3o<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An\u00e1lise regular, limpeza do saco de \u00e2nodo, tratamento de carbono<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Gold_Plating\"><\/span><strong>7.Revestimento de ouro<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Tipos e finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ouro duro<\/strong> (liga de Ni\/Co): Resist\u00eancia ao desgaste<\/li>\n\n\n\n<li><strong>Ouro macio<\/strong> (puro): Soldabilidade<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Par\u00e2metros<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Citrate-based bath: Au 1g\/L, pH 4.5, 35\u00b0C<\/li>\n\n\n\n<li>Pr\u00e9-tratamento:Imers\u00e3o em \u00e1cido c\u00edtrico para minimizar a contamina\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Controles cr\u00edticos<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00c2nodo: Tit\u00e2nio revestido de platina (evite a\u00e7o inoxid\u00e1vel)<\/li>\n\n\n\n<li>P\u00f3s-tratamento:Mergulho alcalino para evitar a oxida\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_Nickel_Plating\"><\/span><strong>8.Niquelagem<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Finalidade<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Camada de barreira contra a difus\u00e3o de Cu\/Au; aumenta a resist\u00eancia mec\u00e2nica<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Par\u00e2metros<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Current density: 2A\/dm\u00b2<\/li>\n\n\n\n<li>Temperature: 50\u00b0C (heating required)<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Manuten\u00e7\u00e3o<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reabastecimento regular de sulfamato\/cloreto de n\u00edquel e \u00e1cido b\u00f3rico<\/li>\n\n\n\n<li>As pelotas de n\u00edquel do \u00e2nodo requerem desbaste da superf\u00edcie<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Critical_Notes\"><\/span><strong>Notas cr\u00edticas<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Seguran\u00e7a<\/strong>: Incremental H\u2082SO\u2084 addition to avoid thermal runaway<\/li>\n\n\n\n<li><strong>Precis\u00e3o<\/strong>: A dosagem de cloreto (30-90 ppm) requer medi\u00e7\u00e3o exata<\/li>\n\n\n\n<li><strong>Controle de contamina\u00e7\u00e3o<\/strong>: Tratamento de carbono + eletr\u00f3lise de baixa corrente<\/li>\n<\/ol>\n\n\n\n<p>Esse processo padronizado garante espessura uniforme do revestimento, ades\u00e3o e confiabilidade.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>O processo de galvaniza\u00e7\u00e3o tornou-se uma parte importante do processo de fabrica\u00e7\u00e3o de PCBs. O revestimento n\u00e3o s\u00f3 aumenta a condutividade da superf\u00edcie da placa de circuito impresso e melhora o desempenho da solda, como tamb\u00e9m protege a placa de circuito impresso de fatores ambientais.<\/p>","protected":false},"author":2,"featured_media":1545,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-1543","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>PCB Electroplating Process - Topfastpcba<\/title>\n<meta name=\"description\" content=\"Plating process has become an important part of the PCB manufacturing process. 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