{"id":3689,"date":"2025-07-26T08:19:00","date_gmt":"2025-07-26T00:19:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3689"},"modified":"2025-07-25T11:20:00","modified_gmt":"2025-07-25T03:20:00","slug":"what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/","title":{"rendered":"Hvad er form\u00e5let med ufyldte loddepuder p\u00e5 et printkort?"},"content":{"rendered":"<p>N\u00e5r du fremstiller <a href=\"https:\/\/www.topfastpcb.com\/da\/blog\/printed-circuit-board-pcb\/\">PCB<\/a> kredsl\u00f8b opn\u00e5s elektriske forbindelser mellem elektroniske komponenter og kredsl\u00f8bskortet ved at l\u00e6gge ledninger ud p\u00e5 overfladen af kredsl\u00f8bskortet, installere elektroniske komponenter og derefter lodde dem p\u00e5 plads. Gode forbindelser og styrken af loddesamlingerne er afg\u00f8rende for kredsl\u00f8bets normale funktion.<\/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\/PCB-solder-joint-1.jpg\" alt=\"PCB-loddeforbindelse\" class=\"wp-image-3690\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><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\">Indholdsfortegnelse<\/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\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#1_Design_Purposes_of_Unfilled_Solder_Joints\" >1. Designform\u00e5l med ufyldte loddesamlinger<\/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\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#2_Electrical_Performance_Impact_Mechanisms\" >2. Mekanismer til p\u00e5virkning af elektrisk ydeevne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#3_Solder_Joint_Quality_Inspection_Techniques\" >3. Teknikker til inspektion af loddesamlingers kvalitet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#4_Key_Process_Control_Parameters\" >4. N\u00f8gleparametre til processtyring<\/a><\/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\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#Common_Issues_Solutions\" >Almindelige problemer og l\u00f8sninger<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Design_Purposes_of_Unfilled_Solder_Joints\"><\/span>1. Designform\u00e5l med ufyldte loddesamlinger<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li><strong>Testpunktets funktionalitet<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Elektrisk testning: Udsatte kobberomr\u00e5der fungerer som testpunkter for oscilloskoper, flying probe-testere og andre lignende apparater.<\/li>\n\n<li>Verifikation af processen: Post-reflow\/b\u00f8lgelodning, testpunkter validerer procesparametre.<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>S\u00e6rlige krav til design<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Varmeafledning: Eksponeret kobber i spor med h\u00f8j str\u00f8mstyrke forbedrer den termiske ydeevne (kr\u00e6ver beregninger af str\u00f8mf\u00f8rende kapacitet).<\/li>\n\n<li>RF-fejlfinding: Umaskerede impedans-testpunkter til h\u00f8jfrekvente kredsl\u00f8b (guldbel\u00e6gning anbefales).<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Electrical_Performance_Impact_Mechanisms\"><\/span>2. Mekanismer til p\u00e5virkning af elektrisk ydeevne<span class=\"ez-toc-section-end\"><\/span><\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Dimension af p\u00e5virkning<\/th><th>Mekanisme<\/th><th>Typisk scenarie<\/th><\/tr><\/thead><tbody><tr><td>Kontaktmodstand<\/td><td>Oxidlag \u00f8ger impedansen 3-5 gange<\/td><td>For stort sp\u00e6ndingsfald i str\u00f8mkredse<\/td><\/tr><tr><td>H\u00f8jfrekvent signaltab<\/td><td>Impedansmisforhold for\u00e5rsager returtab (&gt;3dB)<\/td><td>\u00d8gede bitfejlsrater i 5G-moduler<\/td><\/tr><tr><td>Termisk p\u00e5lidelighed<\/td><td>H\u00f8jere termisk modstand \u00f8ger overgangstemperaturen med 10-15 \u00b0C<\/td><td>For tidlig svigt i effekt-MOSFET'er<\/td><\/tr><\/tbody><\/table><\/figure><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\/PCB-solder-joint-3.jpg\" alt=\"PCB-loddeforbindelse\" class=\"wp-image-3691\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-3.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-3-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-3-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Solder_Joint_Quality_Inspection_Techniques\"><\/span>3. Teknikker til inspektion af loddesamlingers kvalitet<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li><strong>L\u00f8sninger i industriel kvalitet<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>3D SPI: M\u00e5ling af loddepastatykkelse (\u00b15 \u03bcm n\u00f8jagtighed)<\/li>\n\n<li>Mikrofokus r\u00f8ntgen: Registrerer BGA-huller p\u00e5 0,2 \u03bcm-niveau (99,7% detektionshastighed)<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Omkostningseffektive l\u00f8sninger<\/strong><\/li><\/ul><ul class=\"wp-block-list\"><li>Gennemtr\u00e6ngning med r\u00f8dt farvestof: Billig opsporing af revner (besparelser p\u00e5 80%)<\/li>\n\n<li>Termisk billeddannelse: Identificerer kolde samlinger via temperaturanomalier<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Key_Process_Control_Parameters\"><\/span>4. N\u00f8gleparametre til processtyring<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>Reflow-lodningsprofil (eksempel p\u00e5 blyfri proces)<\/strong><\/p><ul class=\"wp-block-list\"><li>Forvarmning: 150\u00b0C (1-2\u00b0C\/s rampehastighed)<\/li>\n\n<li>Gennembl\u00f8dningstid: 90 sek (\u00b15\u00b0C stabilisering)<\/li>\n\n<li>H\u00f8jeste temperatur: 245\u00b0C (30-45 sekunders varighed)<\/li>\n\n<li>Afk\u00f8lingshastighed: 3\u00b0C\/s (forhindrer termisk chok)<\/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\/PCB-solder-joint-2.jpg\" alt=\"PCB-loddeforbindelse\" class=\"wp-image-3692\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Issues_Solutions\"><\/span>Almindelige problemer og l\u00f8sninger<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>Q1: Problemer med signalintegritet i h\u00f8jfrekvente kredsl\u00f8b - mistanke om ufyldte loddesamlinger?<\/strong><br>A1: Brug Time-Domain Reflectometry (TDR) til at lokalisere impedansdiskontinuiteter, og bekr\u00e6ft derefter med r\u00f8ntgen. Anbefalinger:<\/p><ul class=\"wp-block-list\"><li>Brug loddelegeringer med lavt tab (f.eks. SnAgCu)<\/li>\n\n<li>Design testpunkter med impedanskompensation<\/li><\/ul><p><strong>Sp\u00f8rgsm\u00e5l 2: Hvordan h\u00e5ndterer man hurtigt kolde loddesamlinger i masseproduktion?<\/strong><br>A2: Implementer en tretrins kontrolmetode:<\/p><ol class=\"wp-block-list\"><li>Optimering af stencil: \u00d8g \u00e5bningsst\u00f8rrelsen med 5%<\/li>\n\n<li>Kv\u00e6lstofatmosf\u00e6re: Oprethold O\u2082-niveauer &lt;1000 ppm<\/li>\n\n<li>Inline AOI: Tilf\u00f8j inspektion fra siden<\/li><\/ol><p><strong>Q3: Udsat kobberoxidering i fugtige milj\u00f8er, der for\u00e5rsager d\u00e5rlig kontakt?<\/strong><br>A3: Beskyttelsesstrategi i tre niveauer:<\/p><ul class=\"wp-block-list\"><li>Prim\u00e6r: Electroless Nickel Immersion Gold (ENIG)<\/li>\n\n<li>Sekund\u00e6rt: Lokal konform bel\u00e6gning (UV-h\u00e6rdende harpiks)<\/li>\n\n<li>Terti\u00e6r: IP67-klassificeret vandt\u00e6t design<\/li><\/ul><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Designform\u00e5lene, p\u00e5virkningerne af den elektriske ydeevne og inspektionsmetoderne for ufyldte loddepuder (udsatte kobberomr\u00e5der) p\u00e5 printkort, der d\u00e6kker vigtige videnpunkter som testpunktsfunktioner, risici for signalintegritet og r\u00f8ntgeninspektionsteknologi, overholder industristandarder som IPC-610 og giver hj\u00e6lp til printkortdesign og fremstillingsprocesser.<\/p>","protected":false},"author":1,"featured_media":3693,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[331],"class_list":["post-3689","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-pcb-solder-joint"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the purpose of unfilled solder pads on a PCB? - Topfastpcb<\/title>\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\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the purpose of unfilled solder pads on a PCB? - Topfastpcb\" \/>\n<meta property=\"og:description\" content=\"The design purposes, electrical performance impacts, and inspection methods of unfilled solder pads (exposed copper areas) on PCBs, covering key knowledge points such as test point functions, signal integrity risks, and X-ray inspection technology, comply with industry standards such as IPC-610, and provide assistance for PCB design and manufacturing processes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.topfastpcb.com\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\" \/>\n<meta property=\"og:site_name\" content=\"Topfastpcb\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-26T00:19:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.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=\"Skrevet af\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimeret l\u00e6setid\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutter\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\"},\"author\":{\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\"},\"headline\":\"What is the purpose of unfilled solder pads on a PCB?\",\"datePublished\":\"2025-07-26T00:19:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\"},\"wordCount\":369,\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg\",\"keywords\":[\"PCB solder joint\"],\"articleSection\":[\"FAQ\"],\"inLanguage\":\"da-DK\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\",\"url\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\",\"name\":\"What is the purpose of unfilled solder pads on a PCB? - Topfastpcb\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg\",\"datePublished\":\"2025-07-26T00:19:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#breadcrumb\"},\"inLanguage\":\"da-DK\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"da-DK\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg\",\"width\":600,\"height\":402,\"caption\":\"PCB solder joint\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.topfastpcb.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is the purpose of unfilled solder pads on a 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\":\"da-DK\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\",\"name\":\"Topfastpcb\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"da-DK\",\"@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\/da\/blog\/author\/admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What is the purpose of unfilled solder pads on a PCB? - Topfastpcb","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\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/","og_locale":"da_DK","og_type":"article","og_title":"What is the purpose of unfilled solder pads on a PCB? - Topfastpcb","og_description":"The design purposes, electrical performance impacts, and inspection methods of unfilled solder pads (exposed copper areas) on PCBs, covering key knowledge points such as test point functions, signal integrity risks, and X-ray inspection technology, comply with industry standards such as IPC-610, and provide assistance for PCB design and manufacturing processes.","og_url":"https:\/\/www.topfastpcb.com\/da\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/","og_site_name":"Topfastpcb","article_published_time":"2025-07-26T00:19:00+00:00","og_image":[{"width":600,"height":402,"url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg","type":"image\/jpeg"}],"author":"\u6258\u666e\u6cd5\u65af\u7279","twitter_card":"summary_large_image","twitter_misc":{"Skrevet af":"\u6258\u666e\u6cd5\u65af\u7279","Estimeret l\u00e6setid":"2 minutter"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#article","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/"},"author":{"name":"\u6258\u666e\u6cd5\u65af\u7279","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a"},"headline":"What is the purpose of unfilled solder pads on a PCB?","datePublished":"2025-07-26T00:19:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/"},"wordCount":369,"publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg","keywords":["PCB solder joint"],"articleSection":["FAQ"],"inLanguage":"da-DK"},{"@type":"WebPage","@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/","url":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/","name":"What is the purpose of unfilled solder pads on a PCB? - Topfastpcb","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg","datePublished":"2025-07-26T00:19:00+00:00","breadcrumb":{"@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#breadcrumb"},"inLanguage":"da-DK","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/"]}]},{"@type":"ImageObject","inLanguage":"da-DK","@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#primaryimage","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-solder-joint.jpg","width":600,"height":402,"caption":"PCB solder joint"},{"@type":"BreadcrumbList","@id":"https:\/\/www.topfastpcb.com\/blog\/what-is-the-purpose-of-unfilled-solder-pads-on-a-pcb\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.topfastpcb.com\/"},{"@type":"ListItem","position":2,"name":"What is the purpose of unfilled solder pads on a 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":"da-DK"},{"@type":"Organization","@id":"https:\/\/www.topfastpcb.com\/#organization","name":"Topfastpcb","url":"https:\/\/www.topfastpcb.com\/","logo":{"@type":"ImageObject","inLanguage":"da-DK","@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\/da\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts\/3689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/comments?post=3689"}],"version-history":[{"count":1,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts\/3689\/revisions"}],"predecessor-version":[{"id":3694,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts\/3689\/revisions\/3694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/media\/3693"}],"wp:attachment":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/media?parent=3689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/categories?post=3689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/tags?post=3689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}