{"id":3560,"date":"2025-07-09T08:22:00","date_gmt":"2025-07-09T00:22:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3560"},"modified":"2025-07-08T15:56:17","modified_gmt":"2025-07-08T07:56:17","slug":"how-to-perform-reflow-soldering-on-double-sided-pcb","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/","title":{"rendered":"Como efetuar a soldadura por refluxo em PCB de dupla face?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 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:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Why_is_Double-Sided_PCB_Reflow_Soldering_a_Challenge_in_Electronics_Manufacturing\" >Porque \u00e9 que a soldadura por refluxo de PCB de dupla face \u00e9 um desafio no fabrico de eletr\u00f3nica?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#In-Depth_Comparison_of_Two_Main_Soldering_Processes\" >Compara\u00e7\u00e3o em profundidade dos dois principais processos de soldadura<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Option_A_Double-Sided_Solder_Paste_Process_Ideal_for_High-Density_Components\" >Op\u00e7\u00e3o A: Processo de pasta de solda de dupla face (ideal para componentes de alta densidade)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Option_B_Solder_Paste_Red_Glue_Hybrid_Process_Solution_for_Large_Components\" >Op\u00e7\u00e3o B: Processo h\u00edbrido de pasta de solda + cola vermelha (solu\u00e7\u00e3o para componentes grandes)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#5_Golden_Rules_for_Soldering_Quality_Control\" >5 regras de ouro para o controlo de qualidade da soldadura<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Common_Issues_and_Engineering_Solutions\" >Problemas comuns e solu\u00e7\u00f5es de engenharia<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Future_Process_Trends\" >Tend\u00eancias futuras dos processos<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_is_Double-Sided_PCB_Reflow_Soldering_a_Challenge_in_Electronics_Manufacturing\"><\/span>Porque \u00e9 que a soldadura por refluxo de PCB de dupla face \u00e9 um desafio no fabrico de eletr\u00f3nica?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Em produtos electr\u00f3nicos de elevado desempenho, como smartphones e dispositivos de controlo industrial, <a href=\"https:\/\/www.topfastpcb.com\/pt\/products\/double-sided-flexible-pcb\/\">placa de circuito impresso de dupla face<\/a> tornaram-se a norma. No entanto, a soldadura de dupla face apresenta dois grandes desafios:<\/p><ol class=\"wp-block-list\"><li><strong>Complexidade da gest\u00e3o t\u00e9rmica<\/strong> - Durante a soldadura do segundo lado, o primeiro lado \u00e9 reaquecido, o que pode causar a separa\u00e7\u00e3o de componentes ou a falha da junta de soldadura.<\/li>\n\n<li><strong>Dilema da sele\u00e7\u00e3o de processos<\/strong> - Os processos de pasta de solda e cola vermelha t\u00eam pr\u00f3s e contras, exigindo uma an\u00e1lise cuidadosa com base na disposi\u00e7\u00e3o dos componentes.<\/li><\/ol><p><a href=\"https:\/\/www.topfastpcb.com\/pt\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">Consultar os nossos engenheiros de processos<\/a>\u00a0para solu\u00e7\u00f5es personalizadas<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb.jpg\" alt=\"Soldadura por refluxo de PCB\" class=\"wp-image-3561\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"In-Depth_Comparison_of_Two_Main_Soldering_Processes\"><\/span>Compara\u00e7\u00e3o em profundidade dos dois principais processos de soldadura<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Option_A_Double-Sided_Solder_Paste_Process_Ideal_for_High-Density_Components\"><\/span>Op\u00e7\u00e3o A: Processo de pasta de solda de dupla face (ideal para componentes de alta densidade)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Melhor para<\/strong>:<\/p><ul class=\"wp-block-list\"><li>PCBs com BGAs, QFNs ou outros ICs de precis\u00e3o em ambos os lados<\/li>\n\n<li>Componentes leves em geral<\/li><\/ul><p><strong>Principais etapas<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Lado A: Imprimir a pasta de solda \u2192 Colocar os componentes \u2192 Solda de refluxo (temperatura de pico 245\u00b0C)<\/li>\n\n<li>Arrefecer at\u00e9 \u00e0 temperatura ambiente, depois virar o PCB<\/li>\n\n<li>Lado B: Imprimir pasta de solda \u2192 Colocar componentes \u2192 Utilizar um perfil de temperatura escalonado (reduzir a temperatura de pico em 5-10\u00b0C)<\/li><\/ol><p><strong>Vantagens<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Elevada fiabilidade da junta de soldadura<\/li>\n\n<li>Adequado para produ\u00e7\u00e3o em massa automatizada<\/li><\/ul><p><strong>Riscos<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Componentes grandes podem desprender-se durante a segunda refus\u00e3o<\/li>\n\n<li>\u00c9 necess\u00e1rio um controlo preciso da temperatura para a soldadura do segundo lado<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Option_B_Solder_Paste_Red_Glue_Hybrid_Process_Solution_for_Large_Components\"><\/span>Op\u00e7\u00e3o B: Processo h\u00edbrido de pasta de solda + cola vermelha (solu\u00e7\u00e3o para componentes grandes)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Melhor para<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Um dos lados tem grandes conectores\/capacitores electrol\u00edticos<\/li>\n\n<li>Estruturas mistas com diferen\u00e7as de peso significativas<\/li><\/ul><p><strong>Processo inovador<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Lado da pasta de solda (Lado A): Soldadura por refluxo padr\u00e3o<\/li>\n\n<li>Lado vermelho da cola (Lado B): \"Print-Place-Cure\" (m\u00e9todo de tr\u00eas passos):<\/li><\/ol><ul class=\"wp-block-list\"><li>Precis\u00e3o de impress\u00e3o da cola vermelha: \u00b10,1mm<\/li>\n\n<li>Temperatura de cura: 120-150\u00b0C (muito inferior ao ponto de fus\u00e3o da pasta de solda)<\/li>\n\n<li>Soldadura por onda opcional para maior fiabilidade<\/li><\/ul><p><strong>Notas t\u00e9cnicas<\/strong>:<\/p><ul class=\"wp-block-list\"><li>A cola vermelha deve estar a uma dist\u00e2ncia m\u00ednima de 0,3 mm das almofadas de soldadura<\/li>\n\n<li>Prolongar o tempo de cura em 30% para evitar uma fraca ader\u00eancia<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-1.jpg\" alt=\"Soldadura por refluxo de PCB\" class=\"wp-image-3562\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><p><a href=\"https:\/\/www.topfastpcb.com\/pt\/contact\/\">Obter guias de cria\u00e7\u00e3o especializados gratuitos<\/a><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Golden_Rules_for_Soldering_Quality_Control\"><\/span>5 regras de ouro para o controlo de qualidade da soldadura<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li><strong>Otimizar o perfil de temperatura<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Primeiro lado: Curva padr\u00e3o Ramp-Soak-Spike (RSS) (taxa de aquecimento de 2-3\u00b0C\/s)<\/li>\n\n<li>Segundo lado:Utilizar a curva Ramp-to-Spike (RTS) (tempo de pr\u00e9-aquecimento alargado)<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Diretrizes de disposi\u00e7\u00e3o de componentes<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Colocar os componentes pesados do mesmo lado<\/li>\n\n<li>Escalonamento de BGAs de dupla face para evitar a concentra\u00e7\u00e3o de tens\u00f5es t\u00e9rmicas<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Crit\u00e9rios de sele\u00e7\u00e3o de pasta de solda<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Segundo lado: Utilizar pasta de solda de baixa temperatura (por exemplo, Sn42\/Bi58)<\/li>\n\n<li>Viscosidade da cola vermelha:&gt;50.000 cps<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Par\u00e2metros cr\u00edticos do equipamento<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Inclina\u00e7\u00e3o do transportador do forno de refluxo: 5-7\u00b0<\/li>\n\n<li>Taxa de arrefecimento: 4-6\u00b0C\/s<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Actualiza\u00e7\u00f5es da tecnologia de inspe\u00e7\u00e3o<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Utilizar o SPI 3D para a inspe\u00e7\u00e3o da espessura da pasta de soldadura<\/li>\n\n<li>Microscopia ac\u00fastica obrigat\u00f3ria ap\u00f3s a segunda refus\u00e3o<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Issues_and_Engineering_Solutions\"><\/span>Problemas comuns e solu\u00e7\u00f5es de engenharia<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>Quest\u00e3o 1: Desloca\u00e7\u00e3o do componente QFN durante o segundo refluxo<\/strong><\/p><ul class=\"wp-block-list\"><li>Solu\u00e7\u00e3o: Aplicar adesivo de alta temperatura ap\u00f3s a soldadura do primeiro lado<\/li>\n\n<li>Par\u00e2metros:Utilizar adesivo com toler\u00e2ncia de cura &gt;200\u00b0C<\/li><\/ul><p><strong>Problema 2: Queda de componentes durante a soldadura por onda (lado da cola vermelha)<\/strong><\/p><ul class=\"wp-block-list\"><li>Melhorias:<\/li><\/ul><ol class=\"wp-block-list\"><li>P\u00f3s-cura com UV ap\u00f3s aplica\u00e7\u00e3o de cola vermelha<\/li>\n\n<li>Pr\u00e9-aquecer a 100\u00b0C antes da soldadura por onda<\/li><\/ol><p><strong>Quest\u00e3o 3: Vazamento excessivo em juntas BGA<\/strong><\/p><ul class=\"wp-block-list\"><li>Otimiza\u00e7\u00e3o de processos:<\/li>\n\n<li>Aumentar o tempo de descongela\u00e7\u00e3o da pasta de solda para 8 horas<\/li>\n\n<li>Utilizar refluxo assistido por azoto (O\u2082 &lt;500ppm)<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-2.jpg\" alt=\"Soldadura por refluxo de PCB\" class=\"wp-image-3563\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Future_Process_Trends\"><\/span>Tend\u00eancias futuras dos processos<span class=\"ez-toc-section-end\"><\/span><\/h2><ol class=\"wp-block-list\"><li><strong>Soldadura a baixa temperatura<\/strong>: Ligas de solda Sn-Bi com aquecimento por impulsos<\/li>\n\n<li><strong>Controlo inteligente da temperatura<\/strong>: Otimiza\u00e7\u00e3o de perfis em tempo real com base na aprendizagem autom\u00e1tica<\/li>\n\n<li><strong>Jun\u00e7\u00e3o h\u00edbrida<\/strong>: Solu\u00e7\u00f5es combinadas de pasta de solda + adesivo condutor<\/li><\/ol><p>Aplicando sistematicamente estas t\u00e9cnicas-chave, os engenheiros podem alcan\u00e7ar rendimentos de primeira passagem superiores a 99,5%.Recomendamos a implementa\u00e7\u00e3o de sistemas de monitoriza\u00e7\u00e3o de janelas de processo para otimiza\u00e7\u00e3o cont\u00ednua em ambientes de produ\u00e7\u00e3o.<\/p>","protected":false},"excerpt":{"rendered":"<p>A soldadura por refluxo de PCB de dupla face \u00e9 um processo essencial no fabrico de produtos electr\u00f3nicos, envolvendo a sele\u00e7\u00e3o de processos de pasta de solda e cola vermelha, controlo da curva de temperatura e estrat\u00e9gias de soldadura de dupla face. Este artigo analisa o processo de soldadura para PCBs de dupla face, fornece solu\u00e7\u00f5es para problemas comuns e d\u00e1 dicas para a otimiza\u00e7\u00e3o do processo para melhorar o rendimento da soldadura e a efici\u00eancia da produ\u00e7\u00e3o.<\/p>","protected":false},"author":1,"featured_media":3564,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[111,320],"class_list":["post-3560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-pcb","tag-pcb-reflow-soldering"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to perform reflow soldering on double-sided PCB? - Topfastpcb<\/title>\n<meta name=\"description\" content=\"Master the key steps of double-sided PCB reflow soldering, from solder paste and red glue process selection to temperature control techniques, providing a complete soldering solution to solve common problems such as cold soldering and component loss.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to perform reflow soldering on double-sided PCB? - Topfastpcb\" \/>\n<meta property=\"og:description\" content=\"Master the key steps of double-sided PCB reflow soldering, from solder paste and red glue process selection to temperature control techniques, providing a complete soldering solution to solve common problems such as cold soldering and component loss.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\" \/>\n<meta property=\"og:site_name\" content=\"Topfastpcb\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-09T00:22:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"402\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\"},\"author\":{\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\"},\"headline\":\"How to perform reflow soldering on double-sided PCB?\",\"datePublished\":\"2025-07-09T00:22:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\"},\"wordCount\":503,\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg\",\"keywords\":[\"PCB\",\"PCB reflow soldering\"],\"articleSection\":[\"FAQ\"],\"inLanguage\":\"pt-PT\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\",\"url\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\",\"name\":\"How to perform reflow soldering on double-sided PCB? - Topfastpcb\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg\",\"datePublished\":\"2025-07-09T00:22:00+00:00\",\"description\":\"Master the key steps of double-sided PCB reflow soldering, from solder paste and red glue process selection to temperature control techniques, providing a complete soldering solution to solve common problems such as cold soldering and component loss.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg\",\"width\":600,\"height\":402,\"caption\":\"PCB reflow soldering\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.topfastpcb.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to perform reflow soldering on double-sided PCB?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.topfastpcb.com\/#website\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"name\":\"Topfastpcb\",\"description\":\"Topfast Prime Choice for Global Electronics Manufacturing\",\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.topfastpcb.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\",\"name\":\"Topfastpcb\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png\",\"width\":144,\"height\":56,\"caption\":\"Topfastpcb\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\",\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"sameAs\":[\"http:\/\/www.topfastpcb.com\"],\"url\":\"https:\/\/www.topfastpcb.com\/pt\/blog\/author\/admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to perform reflow soldering on double-sided PCB? - Topfastpcb","description":"Master the key steps of double-sided PCB reflow soldering, from solder paste and red glue process selection to temperature control techniques, providing a complete soldering solution to solve common problems such as cold soldering and component loss.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/","og_locale":"pt_PT","og_type":"article","og_title":"How to perform reflow soldering on double-sided PCB? - Topfastpcb","og_description":"Master the key steps of double-sided PCB reflow soldering, from solder paste and red glue process selection to temperature control techniques, providing a complete soldering solution to solve common problems such as cold soldering and component loss.","og_url":"https:\/\/www.topfastpcb.com\/pt\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/","og_site_name":"Topfastpcb","article_published_time":"2025-07-09T00:22:00+00:00","og_image":[{"width":600,"height":402,"url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg","type":"image\/jpeg"}],"author":"\u6258\u666e\u6cd5\u65af\u7279","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"\u6258\u666e\u6cd5\u65af\u7279","Tempo estimado de leitura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#article","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/"},"author":{"name":"\u6258\u666e\u6cd5\u65af\u7279","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a"},"headline":"How to perform reflow soldering on double-sided PCB?","datePublished":"2025-07-09T00:22:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/"},"wordCount":503,"publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg","keywords":["PCB","PCB reflow soldering"],"articleSection":["FAQ"],"inLanguage":"pt-PT"},{"@type":"WebPage","@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/","url":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/","name":"How to perform reflow soldering on double-sided PCB? - Topfastpcb","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg","datePublished":"2025-07-09T00:22:00+00:00","description":"Master the key steps of double-sided PCB reflow soldering, from solder paste and red glue process selection to temperature control techniques, providing a complete soldering solution to solve common problems such as cold soldering and component loss.","breadcrumb":{"@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#breadcrumb"},"inLanguage":"pt-PT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/"]}]},{"@type":"ImageObject","inLanguage":"pt-PT","@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#primaryimage","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/double-sided-pcb-3.jpg","width":600,"height":402,"caption":"PCB reflow soldering"},{"@type":"BreadcrumbList","@id":"https:\/\/www.topfastpcb.com\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.topfastpcb.com\/"},{"@type":"ListItem","position":2,"name":"How to perform reflow soldering on double-sided PCB?"}]},{"@type":"WebSite","@id":"https:\/\/www.topfastpcb.com\/#website","url":"https:\/\/www.topfastpcb.com\/","name":"Topfastpcb","description":"Topfast Prime Choice for Global Electronics Manufacturing","publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.topfastpcb.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-PT"},{"@type":"Organization","@id":"https:\/\/www.topfastpcb.com\/#organization","name":"Topfastpcb","url":"https:\/\/www.topfastpcb.com\/","logo":{"@type":"ImageObject","inLanguage":"pt-PT","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png","width":144,"height":56,"caption":"Topfastpcb"},"image":{"@id":"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a","name":"\u6258\u666e\u6cd5\u65af\u7279","sameAs":["http:\/\/www.topfastpcb.com"],"url":"https:\/\/www.topfastpcb.com\/pt\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/posts\/3560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/comments?post=3560"}],"version-history":[{"count":1,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/posts\/3560\/revisions"}],"predecessor-version":[{"id":3565,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/posts\/3560\/revisions\/3565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/media\/3564"}],"wp:attachment":[{"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/media?parent=3560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/categories?post=3560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/pt\/wp-json\/wp\/v2\/tags?post=3560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}