{"id":928,"date":"2026-07-16T08:08:00","date_gmt":"2026-07-16T00:08:00","guid":{"rendered":"https:\/\/www.han-sphere.com\/?p=928"},"modified":"2026-07-18T11:20:43","modified_gmt":"2026-07-18T03:20:43","slug":"pcb-prepreg","status":"publish","type":"post","link":"https:\/\/www.han-sphere.com\/de\/blog\/news\/pcb-prepreg\/","title":{"rendered":"PCB-Prepreg \u2013 Erl\u00e4uterungen zur Herstellung mehrschichtiger Leiterplatten"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Jede mehrschichtige Leiterplatte enth\u00e4lt Prepreg, auch wenn dieses nach der Fertigung der Leiterplatte meist nicht mehr sichtbar ist.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beim Laminieren verbindet das Prepreg mehrere kupferkaschierte Kerne zu einer einzigen starren Struktur und sorgt gleichzeitig f\u00fcr die elektrische Isolierung zwischen den leitf\u00e4higen Schichten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sein Harzgehalt, seine Dicke und seine Flie\u00dfeigenschaften beeinflussen die Qualit\u00e4t der Leiterplatte, die Ma\u00dfhaltigkeit, die Impedanzkontrolle und die langfristige Zuverl\u00e4ssigkeit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Verst\u00e4ndnis von Prepregs hilft Ingenieuren dabei, zuverl\u00e4ssigere Laminataufbauten zu entwickeln und effektiver mit Leiterplattenherstellern zu kommunizieren.<\/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\/PCB-Prepreg.jpg\" alt=\"PCB Prepreg\" class=\"wp-image-929\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-300x200.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Was ist ein PCB-Prepreg?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u201ePrepreg\u201c ist die Abk\u00fcrzung f\u00fcr <strong>vorimpr\u00e4gniertes Material<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Es besteht aus einem gewebten Glasfasergewebe, das mit Epoxidharz impr\u00e4gniert wurde, das nur teilweise ausgeh\u00e4rtet ist.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Da das Harz noch nicht vollst\u00e4ndig ausgeh\u00e4rtet ist, bleibt das Prepreg vor dem Laminieren flexibel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wenn bei der Leiterplattenherstellung W\u00e4rme und Druck ausge\u00fcbt werden, erweicht das Harz, flie\u00dft in mikroskopisch kleine Spalten und h\u00e4rtet schlie\u00dflich zu einer starren Isolierschicht aus.<\/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\/pcb-substrate-vs-pcb-laminate\/\">Erl\u00e4uterungen zum Leiterplattenlaminat f\u00fcr den Entwurf und die Herstellung von Leiterplatten<\/a><\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Woraus besteht Prepreg?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Obwohl Prepreg wie eine einfache Glasfaserplatte aussieht, ist es das Ergebnis sorgf\u00e4ltiger technischer Entwicklung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Es enth\u00e4lt in der Regel:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gewebtes Glasfasergewebe<\/li>\n\n\n\n<li>Teilweise ausgeh\u00e4rtetes Epoxidharz<\/li>\n\n\n\n<li>Kontrollierter Harzgehalt<\/li>\n\n\n\n<li>Flammhemmende Additive (f\u00fcr FR4-Systeme)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Je nach erforderlicher Plattendicke und elektrischer Leistungsf\u00e4higkeit kommen unterschiedliche Kombinationen zum Einsatz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Was bewirkt Prepreg?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prepreg erf\u00fcllt bei der Herstellung mehrschichtiger Leiterplatten mehrere Funktionen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Verbindungsschichten<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Seine Hauptaufgabe besteht darin, benachbarte Leiterplattenkerne w\u00e4hrend des Laminiervorgangs miteinander zu verbinden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ohne Prepreg w\u00fcrden die einzelnen Schichten nicht zu einer einzigen Leiterplatte verschmelzen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Elektrische Isolierung<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nach dem Aush\u00e4rten dient das Prepreg als dielektrisches Material, das die leitf\u00e4higen Kupferschichten voneinander trennt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Seine dielektrischen Eigenschaften beeinflussen die Impedanz und die Signalintegrit\u00e4t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00fccken schlie\u00dfen<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">W\u00e4hrend des Laminiervorgangs flie\u00dft das Harz um die ge\u00e4tzten Kupfermuster herum und f\u00fcllt kleine Hohlr\u00e4ume aus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ein optimaler Harzfluss tr\u00e4gt dazu bei, die Schichthaftung zu verbessern und Fertigungsfehler zu reduzieren.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Steuerung der Plattendicke<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Die Anzahl und die Dicke der Prepreg-Lagen bestimmen die Dicke der fertigen Leiterplatte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Hersteller w\u00e4hlen unterschiedliche Prepreg-Kombinationen, um den Kundenspezifikationen gerecht zu werden.<\/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\/PCB-Prepreg-1.jpg\" alt=\"PCB Prepreg\" class=\"wp-image-930\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-1.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-1-300x200.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Der Harzgehalt ist entscheidend<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nicht jede Prepreg-Folie enth\u00e4lt die gleiche Menge an Harz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Allgemein:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ein h\u00f6herer Harzanteil verbessert die F\u00fcllung im Bereich von dickwandigem Kupfer.<\/li>\n\n\n\n<li>Ein geringerer Harzanteil tr\u00e4gt dazu bei, engere dielektrische Abst\u00e4nde einzuhalten.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Die Wahl des richtigen Harzanteils h\u00e4ngt vom Aufbau der Leiterplatte und vom Herstellungsprozess ab.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">G\u00e4ngige FR4-Prepreg-Ausf\u00fchrungen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FR4-Prepreg ist in verschiedenen Glasfasergewebestrukturen erh\u00e4ltlich.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beispiele hierf\u00fcr sind:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>106<\/li>\n\n\n\n<li>1080<\/li>\n\n\n\n<li>2113<\/li>\n\n\n\n<li>2116<\/li>\n\n\n\n<li>7628<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Jeder Stil unterscheidet sich in folgenden Punkten:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dicke<\/li>\n\n\n\n<li>Harzgehalt<\/li>\n\n\n\n<li>Mechanische Festigkeit<\/li>\n\n\n\n<li>Dielektrischer Abstand<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Leiterplattenhersteller w\u00e4hlen diese Ausf\u00fchrungen entsprechend dem erforderlichen Schichtaufbau und dem Impedanzdesign aus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Wie sich Prepreg auf die Leistung von Leiterplatten auswirkt<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Impedanzkontrolle<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Die durch das Prepreg erzeugte Dielektrikumsdicke wirkt sich direkt auf die kontrollierte Impedanz aus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Eine gleichbleibende Prepreg-Dicke tr\u00e4gt dazu bei, ein vorhersehbares Signalverhalten zu gew\u00e4hrleisten.<\/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-pcb-stackup-design-guide\/\">FR4 PCB Stackup Design Leitfaden<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/fr4-dielectric-constant-er-vs-frequency\/\">FR4 Dielektrizit\u00e4tskonstante (Er) vs. Frequenz erkl\u00e4rt<\/a><\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Mechanische Zuverl\u00e4ssigkeit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Eine gute Haftung zwischen den Schichten verringert das Risiko einer Delaminierung w\u00e4hrend des Temperaturwechsels und der Montage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fertigungsqualit\u00e4t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Correct prepreg selection improves:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Resin distribution<\/li>\n\n\n\n<li>Layer registration<\/li>\n\n\n\n<li>Lamination quality<\/li>\n\n\n\n<li>Drilling performance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Langfristige Zuverl\u00e4ssigkeit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Well-controlled prepreg materials contribute to stable electrical insulation and improved product lifetime.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Choosing the Right Prepreg<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Several factors influence prepreg selection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dazu geh\u00f6ren:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anzahl der Leiterplattenlagen<\/li>\n\n\n\n<li>Finished board thickness<\/li>\n\n\n\n<li>Copper weight<\/li>\n\n\n\n<li>Controlled impedance requirements<\/li>\n\n\n\n<li>Thermal performance<\/li>\n\n\n\n<li>Manufacturing capability<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Material selection is usually finalized together with the PCB stackup before production begins.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Applications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prepreg is used in almost every multilayer PCB, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unterhaltungselektronik<\/li>\n\n\n\n<li>Industrielle Kontrollsysteme<\/li>\n\n\n\n<li>Fahrzeugelektronik<\/li>\n\n\n\n<li>Medizinische Ger\u00e4te<\/li>\n\n\n\n<li>Kommunikationsmittel<\/li>\n\n\n\n<li>Networking hardware<\/li>\n\n\n\n<li>Servers<\/li>\n\n\n\n<li>Elektronik f\u00fcr die Luft- und Raumfahrt<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Any PCB with more than two layers generally requires prepreg during lamination.<\/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\/PCB-Prepreg-2.jpg\" alt=\"PCB Prepreg\" class=\"wp-image-931\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-2.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-2-300x200.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Prepreg-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">How to Select PCB Prepreg<\/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-1784344516756\"><strong class=\"schema-how-to-step-name\">Schritt 1<\/strong> <p class=\"schema-how-to-step-text\">Ermitteln Sie die erforderliche Anzahl der Leiterplattenlagen und die Enddicke.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1784344522805\"><strong class=\"schema-how-to-step-name\">Schritt 2<\/strong> <p class=\"schema-how-to-step-text\">\u00dcberpr\u00fcfen Sie die Impedanzanforderungen und die dielektrischen Abst\u00e4nde.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1784344528741\"><strong class=\"schema-how-to-step-name\">Schritt 3<\/strong> <p class=\"schema-how-to-step-text\">W\u00e4hlen Sie Prepreg-Typen mit geeignetem Harzgehalt und geeigneter Dicke aus.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1784344536463\"><strong class=\"schema-how-to-step-name\">Schritt 4<\/strong> <p class=\"schema-how-to-step-text\">Kl\u00e4ren Sie den endg\u00fcltigen Schichtaufbau vor der Fertigung mit Ihrem Leiterplattenhersteller ab.<\/p> <\/li><\/ol><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Schlussfolgerung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Although prepreg is hidden inside a finished PCB, it plays a critical role in multilayer construction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By bonding layers together, providing electrical insulation, and helping control dielectric spacing, prepreg directly affects manufacturing quality and long-term reliability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Understanding prepreg selection enables engineers to develop better PCB stackups and achieve more consistent production results.<\/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-1784344320551\"><strong class=\"schema-faq-question\">F: Was ist ein PCB-Prepreg?<\/strong> <p class=\"schema-faq-answer\">A: Ein PCB-Prepreg ist ein mit teilweise ausgeh\u00e4rtetem Harz impr\u00e4gniertes Glasfasergewebe, das die PCB-Schichten w\u00e4hrend des Laminiervorgangs miteinander verbindet.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784344333571\"><strong class=\"schema-faq-question\">F: Enth\u00e4lt Prepreg Kupfer?<\/strong> <p class=\"schema-faq-answer\">A: Nein. Prepreg besteht ausschlie\u00dflich aus Glasfaser und Harz. Die Kupferfolie wird im Rahmen des Laminierprozesses separat hinzugef\u00fcgt.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784344345956\"><strong class=\"schema-faq-question\">F: Warum ist Prepreg wichtig?<\/strong> <p class=\"schema-faq-answer\">A: Prepreg verbindet die Leiterplattenlagen miteinander, sorgt f\u00fcr die dielektrische Isolierung und tr\u00e4gt dazu bei, die erforderliche Plattendicke und mechanische Stabilit\u00e4t zu erreichen.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784344360905\"><strong class=\"schema-faq-question\">F: K\u00f6nnen in einer Leiterplatte verschiedene Prepreg-Typen verwendet werden?<\/strong> <p class=\"schema-faq-answer\">A: Ja. Hersteller kombinieren h\u00e4ufig verschiedene Prepreg-Typen und Harzgehalte, um die Anforderungen hinsichtlich Schichtaufbau, Impedanz und Dicke zu erf\u00fcllen.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784344375375\"><strong class=\"schema-faq-question\">F: Wird Prepreg in jeder Leiterplatte verwendet?<\/strong> <p class=\"schema-faq-answer\">A: Prepreg wird in der Regel bei mehrschichtigen Leiterplatten verwendet. Einseitige und viele doppelseitige Leiterplatten ben\u00f6tigen m\u00f6glicherweise kein Prepreg, da sie nicht mehrschichtig laminiert werden.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>PCB-Prepreg ist ein teilweise ausgeh\u00e4rtetes Material aus Glasfaser und Harz, das beim Laminieren mehrschichtiger Leiterplatten zum Verkleben der einzelnen Schichten verwendet wird. In diesem Artikel werden Aufbau, Funktionen, Arten, Dicke und Auswahlkriterien von Prepreg erl\u00e4utert.<\/p>","protected":false},"author":1,"featured_media":932,"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":[79],"class_list":["post-928","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-pcb-prepreg"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PCB Prepreg Explained for Multilayer PCB Manufacturing<\/title>\n<meta name=\"description\" content=\"what is PCB 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