{"id":837,"date":"2026-07-10T08:41:00","date_gmt":"2026-07-10T00:41:00","guid":{"rendered":"https:\/\/www.han-sphere.com\/?p=837"},"modified":"2026-07-06T20:22:43","modified_gmt":"2026-07-06T12:22:43","slug":"how-fr4-pcb-material-is-manufactured","status":"publish","type":"post","link":"https:\/\/www.han-sphere.com\/de\/blog\/news\/how-fr4-pcb-material-is-manufactured\/","title":{"rendered":"Wie FR4-Leiterplattenmaterial hergestellt wird"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Die meisten Ingenieure arbeiten t\u00e4glich mit FR4, doch nur wenige machen sich Gedanken dar\u00fcber, wie das Material selbst hergestellt wird, bevor es zu einer Leiterplatte wird.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Der Herstellungsprozess bestimmt viele der endg\u00fcltigen Eigenschaften des Laminats, darunter die mechanische Festigkeit, die Dimensionsstabilit\u00e4t, die Feuchtigkeitsbest\u00e4ndigkeit und die elektrischen Eigenschaften.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obwohl verschiedene Laminatlieferanten eigene Harzsysteme und Produktionsverfahren verwenden, ist der grundlegende Herstellungsprozess branchenweit \u00e4hnlich.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"499\" src=\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-15.jpg\" alt=\"FR4 PCB\" class=\"wp-image-520\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-15.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-15-300x250.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-15-14x12.jpg 14w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">FR4 beginnt mit zwei Rohstoffen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FR4 wird durch die Verbindung von gewebtem Glasfasergewebe mit Epoxidharz hergestellt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jedes Material erf\u00fcllt eine andere Funktion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Glasfasergewebe sorgt f\u00fcr Festigkeit und Formstabilit\u00e4t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Epoxidharz verbindet die Glasfasern miteinander und sorgt gleichzeitig f\u00fcr elektrische Isolierung sowie flammhemmende Eigenschaften.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kein der beiden Werkstoffe allein kann die Anforderungen der modernen Leiterplattenfertigung erf\u00fcllen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Herstellung des Glasfasergewebes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Der Prozess beginnt damit, dass Glas zu extrem feinen Endlosfasern geschmolzen wird.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Fasern werden je nach den erforderlichen mechanischen Eigenschaften zu verschiedenen Stoffarten verwoben.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Webmuster beeinflusst:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gleichm\u00e4\u00dfigkeit der Dicke<\/li>\n\n\n\n<li>Harzverteilung<\/li>\n\n\n\n<li>Formbest\u00e4ndigkeit<\/li>\n\n\n\n<li>elektrische Gleichm\u00e4\u00dfigkeit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00fcr die verschiedenen Verbundkonstruktionen werden unterschiedliche Glasarten ausgew\u00e4hlt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Harzimpr\u00e4gnierung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Das gewebte Glasfasergewebe wird durch fl\u00fcssiges Epoxidharz gef\u00fchrt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Harz f\u00fcllt die Zwischenr\u00e4ume zwischen den Glasfasern aus und bedeckt das Gewebe gleichm\u00e4\u00dfig.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nach der Impr\u00e4gnierung wird das Material teilweise ausgeh\u00e4rtet, um das sogenannte <strong>Prepreg<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Prepreg bleibt flexibel genug f\u00fcr die sp\u00e4tere Laminierung und enth\u00e4lt gleichzeitig die richtige Menge an Harz f\u00fcr das fertige Laminat.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Herstellung des Laminats<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Je nach gew\u00fcnschter Laminatdicke werden mehrere Prepreg-Bahnen \u00fcbereinandergeschichtet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kupferfolie wird auf einer oder beiden Seiten des Stapels aufgebracht.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die gesamte Baugruppe wird anschlie\u00dfend in eine Laminierpresse \u00fcberf\u00fchrt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hei\u00df- und Drucklaminierung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In der Presse werden Glasfaser, Epoxidharz und Kupferfolie unter kontrollierter Hitze und Druck dauerhaft zu einer einzigen starren Platte verbunden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In dieser Phase flie\u00dft das Harz gleichm\u00e4\u00dfig durch die Glasfaserschichten, bevor es vollst\u00e4ndig aush\u00e4rtet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Eine ordnungsgem\u00e4\u00dfe Regelung von Temperatur, Druck und Aush\u00e4rtungszeit ist f\u00fcr eine gleichbleibende Laminatqualit\u00e4t unerl\u00e4sslich.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/FR4-PCB-1.jpg\" alt=\"FR4 PCB\" class=\"wp-image-834\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/FR4-PCB-1.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/FR4-PCB-1-300x200.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/FR4-PCB-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Oberfl\u00e4chenbehandlung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nach dem Laminieren werden die Platten zugeschnitten und f\u00fcr die Leiterplattenfertigung vorbereitet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Kupferoberfl\u00e4che wird gereinigt, um die Haftung bei den nachfolgenden Bildgebungs- und \u00c4tzprozessen zu verbessern.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Hersteller pr\u00fcfen das Laminat au\u00dferdem auf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gleichm\u00e4\u00dfigkeit der Dicke<\/li>\n\n\n\n<li>Oberfl\u00e4chenfehler<\/li>\n\n\n\n<li>Harzporen<\/li>\n\n\n\n<li>Ma\u00dfgenauigkeit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nur Platinen, die den Spezifikationen entsprechen, werden zur Leiterplattenfertigung weitergeleitet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qualit\u00e4tskontrolle w\u00e4hrend der Fertigung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Laminathersteller f\u00fchren vor dem Versand von FR4-Materialien eine Reihe von Pr\u00fcfungen durch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zu den typischen Inspektionen geh\u00f6ren:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dickenmessung<\/li>\n\n\n\n<li>Glas\u00fcbergangstemperatur (Tg)<\/li>\n\n\n\n<li>Dielektrizit\u00e4tskonstante<\/li>\n\n\n\n<li>Feuchtigkeitsaufnahme<\/li>\n\n\n\n<li>Sch\u00e4lfestigkeit<\/li>\n\n\n\n<li>Pr\u00fcfung der Flammhemmung<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Pr\u00fcfungen tragen dazu bei, sicherzustellen, dass das Laminat den ver\u00f6ffentlichten Materialspezifikationen entspricht.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Weiterf\u00fchrende Lekt\u00fcre:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/fr4-material-properties\/\">Eigenschaften des FR4-Materials, die die Leistung von Leiterplatten beeinflussen<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/fr4-moisture-absorption\/\">Feuchtigkeitsaufnahme von FR4 und deren Auswirkungen auf die Zuverl\u00e4ssigkeit von Leiterplatten<\/a><\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Warum die Fertigungsqualit\u00e4t entscheidend ist<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Zwei Laminate k\u00f6nnen beide als FR4 klassifiziert sein, obwohl sie sich in der Produktion unterschiedlich verhalten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Abweichungen bei der Harzzusammensetzung, der Glasfaserqualit\u00e4t, den Aush\u00e4rtungsbedingungen und der Prozesssteuerung k\u00f6nnen sich auswirken auf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bohrqualit\u00e4t<\/li>\n\n\n\n<li>Formbest\u00e4ndigkeit<\/li>\n\n\n\n<li>thermische Zuverl\u00e4ssigkeit<\/li>\n\n\n\n<li>elektrische Konsistenz<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bei Anwendungen mit h\u00f6heren Anforderungen an die Zuverl\u00e4ssigkeit gewinnt die Materialqualit\u00e4t zunehmend an Bedeutung.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">So beurteilen Sie die Qualit\u00e4t von FR4-Laminat<\/h2>\n\n\n\n<div class=\"schema-how-to wp-block-yoast-how-to-block\"><p class=\"schema-how-to-description\"><\/p> <ol class=\"schema-how-to-steps\"><li class=\"schema-how-to-step\" id=\"how-to-step-1783340341435\"><strong class=\"schema-how-to-step-name\">Schritt 1<\/strong> <p class=\"schema-how-to-step-text\">Lesen Sie das technische Datenblatt des Laminatherstellers durch.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1783340348511\"><strong class=\"schema-how-to-step-name\">Schritt 2<\/strong> <p class=\"schema-how-to-step-text\">Best\u00e4tigen Sie die geforderte Tg, die Dielektrizit\u00e4tskonstante und die Dickentoleranz.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1783340356312\"><strong class=\"schema-how-to-step-name\">Schritt 3<\/strong> <p class=\"schema-how-to-step-text\">\u00dcberpr\u00fcfen Sie die Einhaltung der geltenden Normen und Zertifizierungen.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1783340363100\"><strong class=\"schema-how-to-step-name\">Schritt 4<\/strong> <p class=\"schema-how-to-step-text\">Arbeiten Sie mit einem Leiterplattenhersteller zusammen, der Laminate von qualifizierten Lieferanten bezieht.<\/p> <\/li><\/ol><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"521\" src=\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-16.jpg\" alt=\"FR4 PCB\" class=\"wp-image-523\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-16.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-16-300x261.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/03\/FR4-PCB-16-14x12.jpg 14w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Schlussfolgerung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die Leistungsf\u00e4higkeit von FR4 beginnt schon lange vor dem Start der Leiterplattenfertigung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die sorgf\u00e4ltig kontrollierte Glasfaserherstellung, die Harzimpr\u00e4gnierung, die Laminierung und die Qualit\u00e4tspr\u00fcfung tragen alle zur Zuverl\u00e4ssigkeit des fertigen Materials bei.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wenn man wei\u00df, wie FR4 hergestellt wird, l\u00e4sst sich die Materialqualit\u00e4t leichter beurteilen und das richtige Laminat f\u00fcr verschiedene elektronische Anwendungen ausw\u00e4hlen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u00e4ufig gestellte Fragen<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1783340239838\"><strong class=\"schema-faq-question\">F: Aus welchen Materialien wird FR4 hergestellt?<\/strong> <p class=\"schema-faq-answer\">A: FR4 wird aus gewebtem Glasfasergewebe und flammhemmendem Epoxidharz hergestellt, die mit Kupferfolie laminiert werden.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1783340253164\"><strong class=\"schema-faq-question\">F: Was versteht man unter \u201ePrepreg\u201c bei der FR4-Herstellung?<\/strong> <p class=\"schema-faq-answer\">A: Prepreg ist ein mit teilweise ausgeh\u00e4rtetem Epoxidharz impr\u00e4gniertes Glasfasergewebe. Es wird beim Laminierprozess zur Herstellung des Laminats verwendet.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1783340279013\"><strong class=\"schema-faq-question\">F: Warum ist die Laminierung wichtig?<\/strong> <p class=\"schema-faq-answer\">A: Durch die Laminierung werden Glasfaser, Harz und Kupferfolie dauerhaft zu einem starren Leiterplattensubstrat verbunden, wobei eine gleichm\u00e4\u00dfige Dicke und einheitliche Materialeigenschaften gew\u00e4hrleistet werden.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1783340289715\"><strong class=\"schema-faq-question\">F: Werden alle FR4-Materialien nach dem gleichen Herstellungsverfahren hergestellt?<\/strong> <p class=\"schema-faq-answer\">A: Der grundlegende Prozess ist \u00e4hnlich, doch die Harzformulierungen, Glasfaserarten, Aush\u00e4rtungsbedingungen und Qualit\u00e4tskontrollverfahren unterscheiden sich je nach Hersteller.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1783340301363\"><strong class=\"schema-faq-question\">F: Hat die Fertigungsqualit\u00e4t Einfluss auf die Leistung von Leiterplatten?<\/strong> <p class=\"schema-faq-answer\">A: Ja. Die Qualit\u00e4t der Laminatschicht kann die mechanische Festigkeit, die elektrischen Eigenschaften, die Feuchtigkeitsbest\u00e4ndigkeit und die langfristige Zuverl\u00e4ssigkeit beeinflussen.<\/p> <\/div> <\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>from fiberglass weaving and epoxy resin impregnation to copper lamination and quality inspection. Understand the process behind the industry&#8217;s most widely used PCB substrate.<\/p>","protected":false},"author":1,"featured_media":499,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[4],"tags":[70],"class_list":["post-837","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-fr4-pcb-material"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How FR4 PCB Material Is Manufactured<\/title>\n<meta name=\"description\" content=\"FR4 PCB material is manufactured, from fiberglass weaving and epoxy resin impregnation to copper lamination and quality inspection. 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