{"id":3841,"date":"2025-08-05T19:16:50","date_gmt":"2025-08-05T11:16:50","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3841"},"modified":"2025-08-05T19:23:49","modified_gmt":"2025-08-05T11:23:49","slug":"pcb-annular-ring","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/es\/blog\/pcb-annular-ring\/","title":{"rendered":"Anillo anular PCB"},"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\/pcb-annular-ring\/#The_Core_Function_and_Design_Specifications_of_PCB_Ring_Circuits\" >Funci\u00f3n principal y especificaciones de dise\u00f1o de los circuitos en anillo de PCB<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/pcb-annular-ring\/#Three_Morphological_States_of_Annular_Rings\" >Tres estados morfol\u00f3gicos de los anillos anulares<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/pcb-annular-ring\/#Engineering_Calculations_for_Annular_Ring_Dimensions\" >C\u00e1lculos de ingenier\u00eda para dimensiones de anillos anulares<\/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\/pcb-annular-ring\/#Industry_Standards_Process_Control\" >Normas industriales y control de procesos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/pcb-annular-ring\/#Teardrop_Reinforcement_Engineering_Benefits\" >Refuerzo de l\u00e1grimas: Ventajas t\u00e9cnicas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/pcb-annular-ring\/#Common_Issues_Solutions\" >Problemas comunes y soluciones<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Core_Function_and_Design_Specifications_of_PCB_Ring_Circuits\"><\/span>Funci\u00f3n principal y especificaciones de dise\u00f1o de los circuitos en anillo de PCB<span class=\"ez-toc-section-end\"><\/span><\/h2><p>En <a href=\"https:\/\/www.topfastpcb.com\/es\/products\/\">fabricaci\u00f3n de circuitos impresos (PCB)<\/a>El <strong>anillo anular<\/strong> es una estructura fundamental que garantiza conexiones el\u00e9ctricas fiables. Esta almohadilla met\u00e1lica circular sujeta los cables de los componentes a trav\u00e9s de un orificio central, formando conexiones el\u00e9ctricas estables mediante soldadura. La precisi\u00f3n del mecanizado de los anillos anulares afecta no solo al rendimiento de cada placa, sino tambi\u00e9n al de la producci\u00f3n en serie.<\/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\/08\/PCB-Annular-Ring-2.jpg\" alt=\"Anillo anular PCB\" class=\"wp-image-3846\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/PCB-Annular-Ring-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/PCB-Annular-Ring-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/PCB-Annular-Ring-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Three_Morphological_States_of_Annular_Rings\"><\/span>Tres estados morfol\u00f3gicos de los anillos anulares<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Estado normal<\/strong><br>El orificio taladrado est\u00e1 perfectamente centrado dentro de la almohadilla, formando un anillo de cobre completo. Esta condici\u00f3n ideal garantiza una capacidad de transporte de corriente y una resistencia mec\u00e1nica \u00f3ptimas, reduciendo la resistencia de la conexi\u00f3n al <strong>15-20%<\/strong>.<\/li>\n\n<li><strong>Estado tangente<\/strong><br>Cuando la perforaci\u00f3n se desv\u00eda del centro, el anillo de cobre entra en contacto con el borde del orificio por un lado, creando una condici\u00f3n tangente. Esto, habitual en la perforaci\u00f3n a alta velocidad, puede reducir la capacidad de corriente en <strong>30-40%<\/strong>. Las f\u00e1bricas modernas de placas de circuito impreso utilizan sistemas de inspecci\u00f3n por visi\u00f3n para controlar en tiempo real la aparici\u00f3n de tangencias.<\/li>\n\n<li><strong>Estado de ruptura<\/strong><br>Defecto grave en el que el anillo de cobre est\u00e1 completamente roto, provocando un circuito abierto. Esto ocurre t\u00edpicamente cuando la desviaci\u00f3n de la perforaci\u00f3n excede... <strong>0,1 mm<\/strong> y es una de las principales causas de rechazo de PCB en el control de calidad. <a href=\"https:\/\/www.topfastpcb.com\/es\/blog\/what-is-aoi-automated-optical-inspection\/\">Inspecci\u00f3n \u00f3ptica automatizada<\/a> (AOI) detectan eficazmente estos defectos.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Engineering_Calculations_for_Annular_Ring_Dimensions\"><\/span>C\u00e1lculos de ingenier\u00eda para dimensiones de anillos anulares<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>F\u00f3rmula del anillo anular exterior (OAR)<\/strong>:<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"464\" height=\"71\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Outer-Annular-Ring-OAR-Formula.jpg\" alt=\"Anillo anular PCB\" class=\"wp-image-3842\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Outer-Annular-Ring-OAR-Formula.jpg 464w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Outer-Annular-Ring-OAR-Formula-300x46.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Outer-Annular-Ring-OAR-Formula-18x3.jpg 18w\" sizes=\"auto, (max-width: 464px) 100vw, 464px\" \/><\/figure><\/div><p>Contabilizaci\u00f3n del espesor del chapado:<\/p><ul class=\"wp-block-list\"><li><strong>PTH (agujero pasante chapado)<\/strong>: A\u00f1adir <strong>0,10 mm<\/strong> subsidio de chapado<\/li>\n\n<li><strong>NPTH (Agujero pasante no plateado)<\/strong>: Sin prestaci\u00f3n adicional<\/li><\/ul><p><em>Ejemplo de c\u00e1lculo<\/em>:<br>Para un <strong>Almohadilla de 0,60 mm<\/strong> y <strong>Agujero acabado de 0,30 mm (PTH)<\/strong>:<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"473\" height=\"79\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Accounting-for-plating-thickness.jpg\" alt=\"Anillo anular PCB\" class=\"wp-image-3843\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Accounting-for-plating-thickness.jpg 473w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Accounting-for-plating-thickness-300x50.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Accounting-for-plating-thickness-18x3.jpg 18w\" sizes=\"auto, (max-width: 473px) 100vw, 473px\" \/><\/figure><\/div><p><strong>Consideraciones sobre el anillo anular interior (IAR)<\/strong>:<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"506\" height=\"69\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Inner-Annular-Ring-IAR-Considerations.jpg\" alt=\"Anillo anular PCB\" class=\"wp-image-3844\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Inner-Annular-Ring-IAR-Considerations.jpg 506w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Inner-Annular-Ring-IAR-Considerations-300x41.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/Inner-Annular-Ring-IAR-Considerations-18x2.jpg 18w\" sizes=\"auto, (max-width: 506px) 100vw, 506px\" \/><\/figure><\/div><p>Factores clave para las capas internas:<\/p><ul class=\"wp-block-list\"><li>Compensaci\u00f3n de la desalineaci\u00f3n de la laminaci\u00f3n<\/li>\n\n<li>Variaciones del grosor de la capa interna de cobre<\/li>\n\n<li>Precisi\u00f3n de alineaci\u00f3n en placas multicapa<\/li><\/ul><p><em>Ejemplo de c\u00e1lculo<\/em>:<br>Para un <strong>Almohadilla interior de 0,50 mm<\/strong> y <strong>Agujero acabado de 0,20 mm (PTH)<\/strong>:<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"403\" height=\"72\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/0.20mm-finished-hole.jpg\" alt=\"Anillo anular PCB\" class=\"wp-image-3845\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/0.20mm-finished-hole.jpg 403w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/0.20mm-finished-hole-300x54.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/0.20mm-finished-hole-18x3.jpg 18w\" sizes=\"auto, (max-width: 403px) 100vw, 403px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Industry_Standards_Process_Control\"><\/span>Normas industriales y control de procesos<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Por <strong>IPC-6012<\/strong>Los requisitos del anillo anular var\u00edan seg\u00fan el tipo de placa de circuito impreso:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tipo de PCB<\/th><th>M\u00edn. Anillo anular exterior<\/th><th>Min. Anillo anular interior<\/th><\/tr><\/thead><tbody><tr><td>R\u00edgido<\/td><td>\u22650,05 mm<\/td><td>\u22650,01 mm<\/td><\/tr><tr><td>Flexible<\/td><td>\u22650,075 mm<\/td><td>\u22650,025 mm<\/td><\/tr><tr><td>R\u00edgido-Flexible<\/td><td>\u22650,06 mm<\/td><td>\u22650,015 mm<\/td><\/tr><\/tbody><\/table><\/figure><p><strong>Recomendaciones de dise\u00f1o<\/strong>:<br>\u2714 Permitir <strong>0,02-0,03 mm<\/strong> margen del proceso<br>\u2714 Aumentar la anchura del anillo en <strong>20%<\/strong> para circuitos de alta frecuencia<br>\u2714 Verificar la capacidad de transporte de corriente de las trazas de alta potencia.<br>\u2714 Simular los efectos de la tensi\u00f3n t\u00e9rmica en los anillos anulares<\/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\/08\/PCB-Annular-Ring-1.jpg\" alt=\"Anillo anular PCB\" class=\"wp-image-3847\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/PCB-Annular-Ring-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/PCB-Annular-Ring-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/08\/PCB-Annular-Ring-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Teardrop_Reinforcement_Engineering_Benefits\"><\/span>Refuerzo de l\u00e1grimas: Ventajas t\u00e9cnicas<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Las gotas de l\u00e1grimas mejoran la fiabilidad del anillo anular mediante:<\/p><ol class=\"wp-block-list\"><li><strong>Resistencia mec\u00e1nica<\/strong>: Aumenta la resistencia a la tracci\u00f3n en <strong>40%+<\/strong><\/li>\n\n<li><strong>Tolerancia del proceso<\/strong>: Compensa <strong>\u2265 0.05mm<\/strong> desviaciones de perforaci\u00f3n<\/li>\n\n<li><strong>Fiabilidad<\/strong>: Reduce las microfisuras provocadas por los ciclos t\u00e9rmicos<\/li>\n\n<li><strong>Reparabilidad<\/strong>: Mitiga las conexiones d\u00e9biles de la tangencia menor<\/li><\/ol><p><strong>Directrices de aplicaci\u00f3n<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Longitud de la l\u00e1grima = <strong>1.5-2x<\/strong> ancho de trazo<\/li>\n\n<li>Radio de transici\u00f3n \u2265 <strong>0,1 mm<\/strong><\/li>\n\n<li>Optimizar la forma para la continuidad de impedancia en se\u00f1ales de alta velocidad<\/li>\n\n<li>Utilizar microgotas (<strong>\u22640,15 mm<\/strong>) en zonas de alta densidad<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Issues_Solutions\"><\/span>Problemas comunes y soluciones<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Prevenci\u00f3n de la desalineaci\u00f3n de brocas<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Utilice taladrado CNC de alta precisi\u00f3n (<strong>\u22640,025 mm<\/strong> exactitud)<\/li>\n\n<li>Optimizaci\u00f3n de los par\u00e1metros de perforaci\u00f3n (RPM, velocidad de avance)<\/li>\n\n<li>Implantar sistemas de alineaci\u00f3n CCD<\/li>\n\n<li>Sustituya las brocas cada <strong>1500-2000<\/strong> agujeros<\/li><\/ol><p><strong>Anillos anulares insuficientes<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Aumentar el di\u00e1metro de las pastillas (soluci\u00f3n preferida)<\/li>\n\n<li>Reducir el tama\u00f1o de los orificios (tener en cuenta los cables de los componentes)<\/li>\n\n<li>Utilizar almohadillas asim\u00e9tricas<\/li>\n\n<li>Aplicar la tecnolog\u00eda via-in-pad (requiere chapado secundario)<\/li><\/ol><p><strong>Control de calidad en la producci\u00f3n en serie<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Inspecci\u00f3n dimensional completa de los primeros art\u00edculos<\/li>\n\n<li>Muestreo por lotes con an\u00e1lisis transversal<\/li>\n\n<li>Control en tiempo real de la posici\u00f3n de la perforadora<\/li>\n\n<li>Establecer gr\u00e1ficos de control SPC para la anchura del anillo<\/li><\/ol><p>Mediante la aplicaci\u00f3n de un dise\u00f1o sistem\u00e1tico y estrictos controles de proceso, los anillos anulares para PCB pueden cumplir requisitos de alta fiabilidad, garantizando la estabilidad a largo plazo de los productos electr\u00f3nicos. Los ingenieros deben colaborar estrechamente con los fabricantes durante la fase de dise\u00f1o para equilibrar las especificaciones con las capacidades de producci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Definici\u00f3n, m\u00e9todos de c\u00e1lculo, normas de fabricaci\u00f3n y problemas comunes relacionados con los anillos anulares para PCB.Este art\u00edculo profundiza en el papel fundamental de los anillos anulares en el dise\u00f1o de placas de circuito impreso y ofrece recomendaciones de dise\u00f1o profesionales y puntos de control de procesos para optimizar la fiabilidad de las placas de circuito impreso.<\/p>","protected":false},"author":1,"featured_media":3848,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112],"tags":[338],"class_list":["post-3841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pcb-annular-ring"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - 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