{"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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/","title":{"rendered":"\u00bfC\u00f3mo realizar una soldadura por reflujo en una placa de circuito impreso de doble cara?"},"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\">Tabla de contenidos<\/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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Why_is_Double-Sided_PCB_Reflow_Soldering_a_Challenge_in_Electronics_Manufacturing\" >\u00bfPor qu\u00e9 la soldadura por reflujo de PCB a doble cara es un reto en la fabricaci\u00f3n de productos electr\u00f3nicos?<\/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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#In-Depth_Comparison_of_Two_Main_Soldering_Processes\" >Comparaci\u00f3n en profundidad de los dos principales procesos 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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Option_A_Double-Sided_Solder_Paste_Process_Ideal_for_High-Density_Components\" >Opci\u00f3n A: Proceso de pasta de soldadura de doble cara (ideal para componentes de alta densidad)<\/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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Option_B_Solder_Paste_Red_Glue_Hybrid_Process_Solution_for_Large_Components\" >Opci\u00f3n B: Proceso h\u00edbrido de pasta de soldadura + cola roja (soluci\u00f3n 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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#5_Golden_Rules_for_Soldering_Quality_Control\" >5 reglas de oro para el control de calidad de la 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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Common_Issues_and_Engineering_Solutions\" >Problemas comunes y soluciones t\u00e9cnicas<\/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\/es\/blog\/how-to-perform-reflow-soldering-on-double-sided-pcb\/#Future_Process_Trends\" >Tendencias futuras del proceso<\/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>\u00bfPor qu\u00e9 la soldadura por reflujo de PCB a doble cara es un reto en la fabricaci\u00f3n de productos electr\u00f3nicos?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>En productos electr\u00f3nicos de alto rendimiento, como smartphones y dispositivos de control industrial, <a href=\"https:\/\/www.topfastpcb.com\/es\/products\/double-sided-flexible-pcb\/\">PCB de doble cara<\/a> se han convertido en la norma. Sin embargo, la soldadura a doble cara presenta dos grandes retos:<\/p><ol class=\"wp-block-list\"><li><strong>Complejidad de la gesti\u00f3n t\u00e9rmica<\/strong> - Durante la soldadura de la segunda cara, la primera se recalienta, lo que puede provocar el desprendimiento de componentes o el fallo de la uni\u00f3n soldada.<\/li>\n\n<li><strong>Dilema de la selecci\u00f3n de procesos<\/strong> - Los procesos de pasta de soldadura y cola roja tienen ventajas e inconvenientes, por lo que deben considerarse cuidadosamente en funci\u00f3n de la disposici\u00f3n de los componentes.<\/li><\/ol><p><a href=\"https:\/\/www.topfastpcb.com\/es\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">Consulte a nuestros ingenieros de procesos<\/a>\u00a0para soluciones 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 reflujo 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>Comparaci\u00f3n en profundidad de los dos principales procesos 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>Opci\u00f3n A: Proceso de pasta de soldadura de doble cara (ideal para componentes de alta densidad)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Lo mejor para<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Placas de circuito impreso con BGA, QFN u otros circuitos integrados de precisi\u00f3n en ambas caras<\/li>\n\n<li>Componentes ligeros en general<\/li><\/ul><p><strong>Pasos clave<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Lado A: Imprimir pasta de soldadura \u2192 Colocar componentes \u2192 Soldadura de reflujo (temperatura pico 245\u00b0C).<\/li>\n\n<li>Dejar enfriar a temperatura ambiente y dar la vuelta al PCB<\/li>\n\n<li>Lado B: Imprimir pasta de soldadura \u2192 Colocar componentes \u2192 Utilizar perfil de temperatura escalonado (reducir la temperatura pico entre 5 y 10 \u00b0C).<\/li><\/ol><p><strong>Ventajas<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Alta fiabilidad de la uni\u00f3n soldada<\/li>\n\n<li>Adecuado para la producci\u00f3n en serie automatizada<\/li><\/ul><p><strong>Riesgos<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Los componentes grandes pueden desprenderse durante el segundo reflujo<\/li>\n\n<li>Se requiere un control preciso de la temperatura para soldar por el 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>Opci\u00f3n B: Proceso h\u00edbrido de pasta de soldadura + cola roja (soluci\u00f3n para componentes grandes)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Lo mejor para<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Un lado tiene grandes conectores\/condensadores electrol\u00edticos<\/li>\n\n<li>Disposiciones mixtas con diferencias de peso significativas<\/li><\/ul><p><strong>Proceso innovador<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Lado de la pasta de soldadura (Lado A): Soldadura por reflujo est\u00e1ndar<\/li>\n\n<li>Lado de pegamento rojo (Lado B): &#8220;Impresi\u00f3n-Colocaci\u00f3n-Curado&#8221; m\u00e9todo de tres pasos:<\/li><\/ol><ul class=\"wp-block-list\"><li>Precisi\u00f3n de impresi\u00f3n de cola roja: \u00b10,1 mm<\/li>\n\n<li>Temperatura de curado: 120-150\u00b0C (muy inferior al punto de fusi\u00f3n de la pasta de soldadura)<\/li>\n\n<li>Soldadura por ola opcional para una mayor fiabilidad<\/li><\/ul><p><strong>Notas t\u00e9cnicas<\/strong>:<\/p><ul class=\"wp-block-list\"><li>La cola roja debe estar a una distancia m\u00ednima de 0,3 mm de las almohadillas de soldadura<\/li>\n\n<li>Prolonga el tiempo de curado en un 30% para evitar una adhesi\u00f3n d\u00e9bil<\/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 reflujo 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\/es\/contact\/\">Consigue gratis gu\u00edas de expertos en artesan\u00eda<\/a><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Golden_Rules_for_Soldering_Quality_Control\"><\/span>5 reglas de oro para el control de calidad de la soldadura<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li><strong>Optimizar el perfil de temperatura<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Primera cara: Curva est\u00e1ndar Rampa-Soak-Spike (RSS) (velocidad de calentamiento 2-3\u00b0C\/s)<\/li>\n\n<li>Segundo lado:Utilizar la curva de rampa a espiga (RTS) (tiempo de precalentamiento prolongado).<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Directrices para la disposici\u00f3n de componentes<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Coloque los componentes pesados en el mismo lado<\/li>\n\n<li>Escalonar los BGA de doble cara para evitar la concentraci\u00f3n de tensiones t\u00e9rmicas<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Criterios de selecci\u00f3n de la pasta de soldadura<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Segunda cara: Utilice pasta de soldadura de baja temperatura (por ejemplo, Sn42\/Bi58)<\/li>\n\n<li>Viscosidad de la cola roja&gt;50.000 cps<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Par\u00e1metros cr\u00edticos del equipo<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Inclinaci\u00f3n de la cinta del horno de reflujo: 5-7\u00b0.<\/li>\n\n<li>Velocidad de enfriamiento: 4-6\u00b0C\/s<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Modernizaci\u00f3n de la tecnolog\u00eda de inspecci\u00f3n<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Utilice 3D SPI para inspeccionar el grosor de la pasta de soldadura<\/li>\n\n<li>Microscop\u00eda ac\u00fastica obligatoria despu\u00e9s del segundo reflujo<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Issues_and_Engineering_Solutions\"><\/span>Problemas comunes y soluciones t\u00e9cnicas<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>Problema 1: Desplazamiento del componente QFN durante el segundo reflujo<\/strong><\/p><ul class=\"wp-block-list\"><li>Soluci\u00f3n: Aplicar adhesivo de alta temperatura despu\u00e9s de soldar la primera cara<\/li>\n\n<li>Par\u00e1metros:Utilizar adhesivo con tolerancia de curado &gt;200\u00b0C<\/li><\/ul><p><strong>Problema 2: Ca\u00edda de componentes durante la soldadura por ola (lado del pegamento rojo)<\/strong><\/p><ul class=\"wp-block-list\"><li>Mejoras:<\/li><\/ul><ol class=\"wp-block-list\"><li>Postcurado con UV tras la aplicaci\u00f3n de cola roja<\/li>\n\n<li>Precalentar a 100\u00b0C antes de soldar por ola<\/li><\/ol><p><strong>Problema 3: Vac\u00edo excesivo en las juntas BGA<\/strong><\/p><ul class=\"wp-block-list\"><li>Optimizaci\u00f3n de procesos:<\/li>\n\n<li>Ampl\u00eda el tiempo de descongelaci\u00f3n de la pasta de soldadura a 8 horas<\/li>\n\n<li>Utilice reflujo asistido por nitr\u00f3geno (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 reflujo 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>Tendencias futuras del proceso<span class=\"ez-toc-section-end\"><\/span><\/h2><ol class=\"wp-block-list\"><li><strong>Soldadura a baja temperatura<\/strong>: Aleaciones de soldadura Sn-Bi con calentamiento pulsado<\/li>\n\n<li><strong>Control inteligente de la temperatura<\/strong>: Optimizaci\u00f3n de perfiles en tiempo real basada en el aprendizaje autom\u00e1tico<\/li>\n\n<li><strong>Uni\u00f3n h\u00edbrida<\/strong>: Soluciones combinadas de pasta de soldar + adhesivo conductor<\/li><\/ol><p>Aplicando sistem\u00e1ticamente estas t\u00e9cnicas clave, los ingenieros pueden lograr rendimientos de primera pasada superiores al 99,5%.Recomendamos implantar sistemas de supervisi\u00f3n de la ventana de proceso para una optimizaci\u00f3n continua en entornos de producci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>La soldadura por reflujo de PCB de doble cara es un proceso fundamental en la fabricaci\u00f3n de productos electr\u00f3nicos, que implica la selecci\u00f3n de procesos de pasta de soldadura y cola roja, el control de la curva de temperatura y estrategias de soldadura de doble cara.En este art\u00edculo se analiza el proceso de soldadura de PCB de doble cara, se ofrecen soluciones a los problemas m\u00e1s comunes y consejos para optimizar el proceso y mejorar el rendimiento de la soldadura y la eficiencia de la producci\u00f3n.<\/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 - 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