{"id":7829,"date":"2025-07-30T18:52:30","date_gmt":"2025-07-30T10:52:30","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=7829"},"modified":"2025-07-30T18:53:26","modified_gmt":"2025-07-30T10:53:26","slug":"why-is-copper-used-in-printed-circuit-boards","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/","title":{"rendered":"Warum wird Kupfer in Leiterplatten verwendet?"},"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\">Inhalts\u00fcbersicht<\/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\/de\/why-is-copper-used-in-printed-circuit-boards\/#1_Core_Advantages_of_Copper_as_the_Preferred_PCB_Material\" >1. Kernvorteile von Kupfer als bevorzugtes Leiterplattenmaterial<\/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:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#11_Unmatched_Electrical_Performance\" >1.1 Unerreichte elektrische Leistung<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#12_Exceptional_Process_Compatibility\" >1.2 Au\u00dfergew\u00f6hnliche Prozesskompatibilit\u00e4t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#13_Cost-Effectiveness_Analysis\" >1.3 Kosten-Wirksamkeits-Analyse<\/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:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#2_Engineering_Value_of_Copper_Pour_Techniques\" >2. Technischer Wert von Kupfergie\u00dftechniken<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#21_Enhanced_Electromagnetic_Compatibility_EMC\" >2.1 Verbesserte elektromagnetische Vertr\u00e4glichkeit (EMV)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#22_Improved_Thermal_Management\" >2.2 Verbessertes W\u00e4rmemanagement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#23_Mechanical_Strength_Optimization\" >2.3 Optimierung der mechanischen Festigkeit<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#3_Practical_Guide_to_Copper_Pour_Design\" >3. Praktischer Leitfaden f\u00fcr die Gestaltung von Kupferg\u00fcssen<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#31_Comparison_of_Two_Fundamental_Pour_Methods\" >3.1 Vergleich von zwei grundlegenden Gie\u00dfverfahren<\/a><\/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\/de\/why-is-copper-used-in-printed-circuit-boards\/#32_Special_Zone_Handling_Standards\" >3.2 Normen f\u00fcr die Handhabung von Sonderzonen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#33_Common_Design_Mistakes_and_Corrections\" >3.3 H\u00e4ufige Designfehler und Korrekturen<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/#4_Industry_Frontier_Developments\" >4. Entwicklungen an den Grenzen der Industrie<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Core_Advantages_of_Copper_as_the_Preferred_PCB_Material\"><\/span>1. Kernvorteile von Kupfer als bevorzugtes Leiterplattenmaterial<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Unmatched_Electrical_Performance\"><\/span>1.1 Unerreichte elektrische Leistung<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Second only to silver in conductivity, the resistivity of 1.68 \u00d7 10<\/strong>\u207b\u2078 \u03a9\u00b7m ensures efficient signal transmission.<\/li>\n\n\n\n<li><strong>Hervorragender Hochtonbereich<\/strong>: Beh\u00e4lt die Impedanzcharakteristik trotz Skin-Effekten stabil bei.<\/li>\n\n\n\n<li><strong>Hervorragende Strombelastbarkeit<\/strong>: 40 % h\u00f6here Strombelastbarkeit als Aluminium bei gleicher Querschnittsfl\u00e4che.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Exceptional_Process_Compatibility\"><\/span>1.2 Au\u00dfergew\u00f6hnliche Prozesskompatibilit\u00e4t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>F\u00e4higkeit zum Pr\u00e4zisions\u00e4tzen<\/strong>: Unterst\u00fctzt ultrafeine Spuren unter 3 mil.<\/li>\n\n\n\n<li><strong>Mehrschichtige Laminierung<\/strong>: Entspricht dem W\u00e4rmeausdehnungskoeffizienten (CTE) von FR4&#8217;s.<\/li>\n\n\n\n<li><strong>Vielseitige Oberfl\u00e4chenausf\u00fchrungen<\/strong>: Kompatibel mit allen g\u00e4ngigen Verfahren (ENIG\/OSP\/HASL).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"13_Cost-Effectiveness_Analysis\"><\/span>1.3 Kosten-Wirksamkeits-Analyse<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Materialkosten<\/strong>: 1\/50 des Preises von Silber und nur 1,2x Aluminium.<\/li>\n\n\n\n<li><strong>Verarbeitungskosten<\/strong>: Ausgereifte Verfahren erzielen Erfolgsquoten von \u00fcber 98 %.<\/li>\n\n\n\n<li><strong>Wiederverwertbarkeit<\/strong>: \u00dcber 95 % Kupferr\u00fcckgewinnungsrate aus Altplatten.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Engineering_Value_of_Copper_Pour_Techniques\"><\/span>2. Technischer Wert von Kupfergie\u00dftechniken<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_Enhanced_Electromagnetic_Compatibility_EMC\"><\/span>2.1 Verbesserte elektromagnetische Vertr\u00e4glichkeit (EMV)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Wirksamkeit der Abschirmung<\/strong>: Vollkupferguss reduziert die abgestrahlten St\u00f6rungen um &gt;15 dB.<\/li>\n\n\n\n<li><strong>Signalr\u00fcckleitungen<\/strong>: Bietet die k\u00fcrzesten R\u00fcckwege f\u00fcr Hochgeschwindigkeitssignale.<\/li>\n\n\n\n<li><strong>Impedanzkontrolle<\/strong>Beh\u00e4lt die Eigenschaften der \u00dcbertragungsleitung bei.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_Improved_Thermal_Management\"><\/span>2.2 Verbessertes W\u00e4rmemanagement<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>W\u00e4rmeleitf\u00e4higkeit<\/strong>: Outstanding 398W\/(m\u00b7K) heat dissipation capability.<\/li>\n\n\n\n<li><strong>W\u00e4rmespreizendes Design<\/strong>: Verhindert lokalisierte Hot Spots.<\/li>\n\n\n\n<li><strong>K\u00fchlung der Stromversorgungsger\u00e4te<\/strong>: Kupferdicke im Vergleich zur Strombelastbarkeit:<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Kupferdicke (oz)<\/th><th>Leiterbahnbreite (mm) pro 1A<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>0.4<\/td><\/tr><tr><td>2<\/td><td>0.2<\/td><\/tr><tr><td>3<\/td><td>0.13<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"23_Mechanical_Strength_Optimization\"><\/span>2.3 Optimierung der mechanischen Festigkeit<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Biegefestigkeit<\/strong>: Erh\u00f6ht die Steifigkeit des Substrats um &gt;30%.<\/li>\n\n\n\n<li><strong>Stabilit\u00e4t der Abmessungen<\/strong>: Widerstandsf\u00e4hig gegen Verformung durch Temperatur- und Feuchtigkeitsschwankungen.<\/li>\n\n\n\n<li><strong>Vibrationsfestigkeit<\/strong>: Obligatorisch f\u00fcr milit\u00e4rische Anwendungen.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/Copper-printed-circuit-board.jpg\" alt=\"Gedruckte Leiterplatte aus Kupfer\" class=\"wp-image-7830\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/Copper-printed-circuit-board.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/Copper-printed-circuit-board-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/07\/Copper-printed-circuit-board-150x101.jpg 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Practical_Guide_to_Copper_Pour_Design\"><\/span>3. Praktischer Leitfaden f\u00fcr die Gestaltung von Kupferg\u00fcssen<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"31_Comparison_of_Two_Fundamental_Pour_Methods\"><\/span>3.1 Vergleich von zwei grundlegenden Gie\u00dfverfahren<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Massiver Kupfergu\u00df<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anwendungen: Leistungsebenen, Hochstrompfade<\/li>\n\n\n\n<li>Special treatment: Requires thermal relief slots (width \u22650.5mm)<\/li>\n\n\n\n<li>Typische Parameter:1-3oz Dicke, &lt;30% \u00d6ffnungsverh\u00e4ltnis<\/li>\n<\/ul>\n\n\n\n<p><strong>Gitter Kupfer Gie\u00dfen<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Beste Verwendung: Bereiche mit hochfrequenten Signalen<\/li>\n\n\n\n<li>Grid specifications: Line width\/spacing \u22655mil<\/li>\n\n\n\n<li>Vorteile:Geringere thermische Belastung, 15 % weniger Gewicht<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"32_Special_Zone_Handling_Standards\"><\/span>3.2 Normen f\u00fcr die Handhabung von Sonderzonen<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Antennenbereiche<\/strong>: 20 mm Abstand einhalten<\/li>\n\n\n\n<li><strong>Unter BGA<\/strong>: Verwenden Sie kreuzf\u00f6rmige Pad-Verbindungen<\/li>\n\n\n\n<li><strong>Brettkanten<\/strong>: Implement \u22653mm copper rings<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"33_Common_Design_Mistakes_and_Corrections\"><\/span>3.3 H\u00e4ufige Designfehler und Korrekturen<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Kupferne Inseln<\/strong>: Eliminieren Sie Durchkontaktierungen zur Erdung<\/li>\n\n\n\n<li><strong>Scharfe Ecken<\/strong>: Replace with curved transitions (radius \u22653x trace width)<\/li>\n\n\n\n<li><strong>Ungleichm\u00e4\u00dfige W\u00e4rmeabgabe<\/strong>: Implementierung von graduellen Kupferdickenabstufungen<\/li>\n\n\n\n<li><strong>Impedanz-Fehlanpassung<\/strong>: Strenge Kontrolle der Toleranzen f\u00fcr die dielektrische Schichtdicke<\/li>\n\n\n\n<li><strong>Fehler beim L\u00f6ten<\/strong>: Optimieren Sie die Abmessungen der L\u00f6tmasken\u00f6ffnung<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Industry_Frontier_Developments\"><\/span>4. Entwicklungen an den Grenzen der Industrie<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Ultrad\u00fcnne Kupferfolien<\/strong>: Performance in 5G mmWave circuits (12\u03bcm thickness)<\/li>\n\n\n\n<li><strong>Hybride Materiall\u00f6sungen<\/strong>: Thermische Testdaten f\u00fcr Kupfer-Graphen-Verbundwerkstoffe<\/li>\n\n\n\n<li><strong>3D-gedruckte Kupferschaltungen<\/strong>: Pr\u00e4zisionsdurchbr\u00fcche in der LDS-Technologie<\/li>\n\n\n\n<li><strong>Umweltfreundliche Verarbeitung<\/strong>: Fortschritte bei der cyanidfreien Kupferbeschichtung<\/li>\n<\/ol>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>1. Kernvorteile von Kupfer als bevorzugtes Leiterplattenmaterial 1.1 Unerreichte elektrische Leistung 1.2 Au\u00dfergew\u00f6hnliche Prozesskompatibilit\u00e4t 1.3 Kosten-Wirksamkeits-Analyse 2. Technischer Wert von Kupfer-Gie\u00dftechniken 2.1 Verbesserte elektromagnetische Vertr\u00e4glichkeit (EMV) 2.2 Verbessertes W\u00e4rmemanagement Kupferdicke (oz) Leiterbahnbreite (mm) pro 1A 1 0,4 2 0,2 3 0,13 2.3 Optimierung der mechanischen Festigkeit [&hellip;]<\/p>","protected":false},"author":2,"featured_media":7831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-7829","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>Why is copper used in printed circuit boards? - Topfastpcba<\/title>\n<meta name=\"description\" content=\"Why copper materials must be used in PCBs and the core value of copper plating processes, including key technical points such as electrical conductivity, heat dissipation advantages, and EMI protection.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topfastpcba.com\/de\/why-is-copper-used-in-printed-circuit-boards\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why is copper used in printed circuit boards? 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