{"id":761,"date":"2026-06-03T08:08:00","date_gmt":"2026-06-03T00:08:00","guid":{"rendered":"https:\/\/www.han-sphere.com\/?p=761"},"modified":"2026-06-01T22:21:31","modified_gmt":"2026-06-01T14:21:31","slug":"pcb-reliability-testing-thermal-cycling-burn-in-vibration","status":"publish","type":"post","link":"https:\/\/www.han-sphere.com\/de\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/","title":{"rendered":"PCB-Zuverl\u00e4ssigkeitstests: Thermisches Zyklieren, Burn-In und Vibrationstest"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Eine Leiterplatte, die heute funktioniert, kann sechs Monate sp\u00e4ter immer noch ausfallen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das ist der Unterschied zwischen:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Funktionalit\u00e4t und Zuverl\u00e4ssigkeit.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Das Bestehen der elektrischen Pr\u00fcfung beweist nur:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cDas Brett funktioniert jetzt.\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Die Zuverl\u00e4ssigkeitspr\u00fcfung stellt eine andere Frage:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cFunktioniert es auch noch nach Hitze, Vibration und Zeit?\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00fcr hochzuverl\u00e4ssige Elektronik ist dies ebenso wichtig wie die Funktionalit\u00e4t.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"450\" src=\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/06\/ICT-2.jpg\" alt=\"ICT\" class=\"wp-image-752\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/06\/ICT-2.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/06\/ICT-2-300x225.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/06\/ICT-2-16x12.jpg 16w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Was ist PCB-Zuverl\u00e4ssigkeitspr\u00fcfung?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PCB-Zuverl\u00e4ssigkeitstests bewerten, wie gut eine Leiterplatte im Laufe der Zeit und unter Belastung funktioniert.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Ziel ist die Identifizierung:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fr\u00fche Misserfolge im Leben<\/li>\n\n\n\n<li>schwache L\u00f6tstellen<\/li>\n\n\n\n<li>thermische Erm\u00fcdung<\/li>\n\n\n\n<li>mechanische Schw\u00e4chen<\/li>\n\n\n\n<li>langfristige Verschlechterung<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Anstelle von normalen Betriebsbedingungen werden bei Zuverl\u00e4ssigkeitspr\u00fcfungen absichtlich Belastungen eingesetzt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Warum Zuverl\u00e4ssigkeitstests wichtig sind<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Elektronische Ausf\u00e4lle im Feld sind teuer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f6gliche Folgen sind:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Garantie-R\u00fcckgaben<\/li>\n\n\n\n<li>Ausfallzeit<\/li>\n\n\n\n<li>Sicherheitsrisiken<\/li>\n\n\n\n<li>Produktr\u00fcckrufe<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In Branchen wie der Automobilindustrie oder der Medizintechnik:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Zuverl\u00e4ssigkeit ist oft obligatorisch und nicht optional.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">G\u00e4ngige PCB-Zuverl\u00e4ssigkeitspr\u00fcfmethoden<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Unterschiedliche Produkte erfordern unterschiedliche Tests.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zu den g\u00e4ngigsten Methoden geh\u00f6ren:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Temperaturwechselbeanspruchung<\/li>\n\n\n\n<li>Einbrenntest<\/li>\n\n\n\n<li>Vibrationstests<\/li>\n\n\n\n<li>Feuchtigkeitspr\u00fcfung<\/li>\n\n\n\n<li>Thermoschock<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sie zeigen jeweils unterschiedliche Versagensmechanismen auf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Thermischer Zyklustest<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bei thermischen Zyklen wechselt die Temperatur wiederholt zwischen hei\u00dfen und kalten Bedingungen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beispiel:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-40\u00b0C \u2192 +125\u00b0C \u2192 Wiederholung<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Zweck:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>langfristige Temperaturbelastung simulieren<\/li>\n\n\n\n<li>Materialausdehnungsfehlanpassung aufdecken<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dies zeigt sich oft:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u00f6tm\u00fcdigkeit<\/li>\n\n\n\n<li>durch Rissbildung<\/li>\n\n\n\n<li>Laminatbeanspruchung<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Besonders wichtig f\u00fcr:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Automobilelektronik<\/li>\n\n\n\n<li>Outdoor-Ausr\u00fcstung<\/li>\n\n\n\n<li>industrielle Systeme<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Warum thermisches Zyklieren zu Ausf\u00e4llen f\u00fchrt<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Verschiedene Materialien dehnen sich unterschiedlich aus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zum Beispiel:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kupfer<\/li>\n\n\n\n<li>Lot<\/li>\n\n\n\n<li>FR4-Laminat<\/li>\n\n\n\n<li>keramische Bauteile<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">in unterschiedlichem Tempo expandieren.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wiederholtes Ausdehnen und Zusammenziehen erzeugt mechanische Spannungen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Im Laufe der Zeit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u00f6trisse entstehen<\/li>\n\n\n\n<li>Vias schw\u00e4chen<\/li>\n\n\n\n<li>elektrische Ausf\u00e4lle m\u00f6glich werden<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Verwandt: <strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-via-design-high-speed-stub-backdrill\/\">PCB Via Design in Hochgeschwindigkeitsschaltungen<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Burn-In-Pr\u00fcfung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Beim Burn-in-Test wird eine Leiterplatte \u00fcber einen l\u00e4ngeren Zeitraum kontinuierlich betrieben.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typische Bedingungen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>erh\u00f6hte Temperatur<\/li>\n\n\n\n<li>elektrische Belastung<\/li>\n\n\n\n<li>Dauerbetrieb<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Zweck:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Fr\u00fchzeitige Erkennung von Fehlern vor der Auslieferung<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Dies beruht auf einem gemeinsamen Zuverl\u00e4ssigkeitsgrundsatz:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Schwache Komponenten neigen zu fr\u00fchzeitigem Versagen.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Das Einbrennen hilft, diese Fehler zu beseitigen, bevor die Produkte zum Kunden gelangen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Was Burn-In-Tests aufdecken k\u00f6nnen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e4ufig auftretende Probleme:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>instabile ICs<\/li>\n\n\n\n<li>schwache L\u00f6tstellen<\/li>\n\n\n\n<li>thermische Probleme<\/li>\n\n\n\n<li>intermittierende elektrische St\u00f6rungen<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Oft verwendet in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>medizinische Ger\u00e4te<\/li>\n\n\n\n<li>Telekommunikationsanlagen<\/li>\n\n\n\n<li>industrielle Steuerungen<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Schwingungspr\u00fcfung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vibrationstests simulieren die mechanische Bewegung in der realen Welt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beispiele:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fahrzeugbewegung<\/li>\n\n\n\n<li>Maschinenvibration<\/li>\n\n\n\n<li>Versandstress<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Zweck:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00dcberpr\u00fcfung der L\u00f6tstellenintegrit\u00e4t<\/li>\n\n\n\n<li>Stabilit\u00e4t des Steckers pr\u00fcfen<\/li>\n\n\n\n<li>Pr\u00fcfung der mechanischen Robustheit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kritisch f\u00fcr:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Automobil<\/li>\n\n\n\n<li>Luft- und Raumfahrt<\/li>\n\n\n\n<li>Transportelektronik<\/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=\"461\" src=\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/aoi-1-1.jpg\" alt=\"aoi\" class=\"wp-image-740\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/aoi-1-1.jpg 600w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/aoi-1-1-300x231.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/aoi-1-1-16x12.jpg 16w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Thermoschock-Tests<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Thermoschock ist etwas anderes als Temperaturwechsel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anstelle von allm\u00e4hlichen Temperatur\u00e4nderungen:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">die Karte pl\u00f6tzlichen Temperaturschwankungen ausgesetzt ist.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Beispiel:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Kaltkammer \u2192 Warmkammer<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Dies f\u00fchrt zu einer st\u00e4rkeren mechanischen Belastung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wird verwendet, um zu enth\u00fcllen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Materialschw\u00e4che<\/li>\n\n\n\n<li>L\u00f6trissbildung<\/li>\n\n\n\n<li>Delaminierungsrisiko<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Luftfeuchtigkeit und Umweltpr\u00fcfungen<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Feuchtigkeit kann die Elektronik mit der Zeit besch\u00e4digen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Feuchtigkeitstests bewerten:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Korrosionsbest\u00e4ndigkeit<\/li>\n\n\n\n<li>D\u00e4mmleistung<\/li>\n\n\n\n<li>langfristige Stabilit\u00e4t<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Besonders wichtig f\u00fcr:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Outdoor-Elektronik<\/li>\n\n\n\n<li>Marinesysteme<\/li>\n\n\n\n<li>industrial environments<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Reliability Testing vs Functional Testing<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Aspekt<\/th><th>Funktionelle Pr\u00fcfung<\/th><th>Reliability Testing<\/th><\/tr><\/thead><tbody><tr><td>purpose<\/td><td>verify operation<\/td><td>verify long-term durability<\/td><\/tr><tr><td>timing<\/td><td>before shipment<\/td><td>qualification stage<\/td><\/tr><tr><td>stress level<\/td><td>normal<\/td><td>accelerated stress<\/td><\/tr><tr><td>focus<\/td><td>functionality<\/td><td>lifespan<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Verwandtes Thema: <strong>Funktionstests in der PCB-Best\u00fcckung<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">When Is Reliability Testing Necessary?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gew\u00f6hnlich empfohlen f\u00fcr:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kfz-Elektronik<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Exposure to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vibration<\/li>\n\n\n\n<li>heat cycles<\/li>\n\n\n\n<li>harsh environments<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Aerospace Systems<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Extreme reliability requirements.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Medical Electronics<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Failure tolerance is extremely low.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Industrial Equipment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Long operating hours and harsh conditions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">High-Cost Products<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When field failure cost is significant.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Improve PCB Reliability<\/h2>\n\n\n\n<div class=\"schema-how-to wp-block-yoast-how-to-block\"><p class=\"schema-how-to-description\">Gute Zuverl\u00e4ssigkeit beginnt beim Design.<\/p> <ol class=\"schema-how-to-steps\"><li class=\"schema-how-to-step\" id=\"how-to-step-1780323167938\"><strong class=\"schema-how-to-step-name\">1. Geeignete Materialien ausw\u00e4hlen<\/strong> <p class=\"schema-how-to-step-text\">Die Auswahl des Materials ist wichtig.<br\/>Zum Beispiel:<br\/>. hoch-Tg FR4<br\/>. keramische Substrate<br\/>. CTE-arme Materialien<br\/>Verwandt: <strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/fr4-pcb-vs-high-tg-fr4\/\">FR4 vs. High-Tg FR4: Was ist der Unterschied?<\/a><\/strong><\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1780323228349\"><strong class=\"schema-how-to-step-name\">2. Verbesserung des thermischen Designs<\/strong> <p class=\"schema-how-to-step-text\">Schlechtes W\u00e4rmemanagement beschleunigt den Ausfall.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1780323235959\"><strong class=\"schema-how-to-step-name\">3. Zuverl\u00e4ssigkeit der L\u00f6tverbindungen st\u00e4rken<\/strong> <p class=\"schema-how-to-step-text\">Die richtige Konstruktion des Pads reduziert die Belastung.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1780323249447\"><strong class=\"schema-how-to-step-name\">4. Mechanische Schwachstellen beseitigen<\/strong> <p class=\"schema-how-to-step-text\">Unterst\u00fctzung:<br\/>. Anschl\u00fcsse<br\/>. gro\u00dfe Komponenten<br\/>. schwere Module<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1780323278099\"><strong class=\"schema-how-to-step-name\">5. Design f\u00fcr Herstellbarkeit<\/strong> <p class=\"schema-how-to-step-text\">Eine konsistente Fertigung verbessert die Zuverl\u00e4ssigkeit.<br\/>Verwandt: <strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/high-speed-pcb-design-for-manufacturing-and-yield\/\">Hochgeschwindigkeits-PCB-Design f\u00fcr Fertigung und Ausbeute<\/a><\/strong><\/p> <\/li><\/ol><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Common Reliability Testing Mistakes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Typical issues:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>skipping environmental testing<\/li>\n\n\n\n<li>relying only on room-temperature testing<\/li>\n\n\n\n<li>ignoring vibration risk<\/li>\n\n\n\n<li>no thermal fatigue validation<\/li>\n\n\n\n<li>late-stage reliability planning<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Reliability problems are cheaper to solve before production.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Praktische Hinweise aus der realen Produktion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">What often happens:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>many failures appear only after temperature stress<\/li>\n\n\n\n<li>intermittent faults often show during burn-in<\/li>\n\n\n\n<li>vibration failures usually involve connectors or solder joints<\/li>\n\n\n\n<li>thermal cycling frequently reveals weak vias<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Boards that pass day one testing do not always survive long-term use.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"534\" src=\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/x-ray.jpg\" alt=\"R\u00f6ntgenstrahlen\" class=\"wp-image-720\" style=\"width:600px\" srcset=\"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/x-ray.jpg 800w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/x-ray-300x200.jpg 300w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/x-ray-768x513.jpg 768w, https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/05\/x-ray-18x12.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Schlussfolgerung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PCB reliability testing helps verify whether electronics can survive real-world operating conditions over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Methods such as thermal cycling, burn-in testing, and vibration testing expose weaknesses before products reach customers. For high-reliability industries, reliability testing is often essential for reducing failures and improving long-term performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1780323375088\"><strong class=\"schema-faq-question\">F: Was ist ein PCB-Zuverl\u00e4ssigkeitstest?<\/strong> <p class=\"schema-faq-answer\">A: Sie bewertet die langfristige Leistung von Leiterplatten unter Stressbedingungen.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1780323386862\"><strong class=\"schema-faq-question\">F: Was ist eine Temperaturwechselpr\u00fcfung?<\/strong> <p class=\"schema-faq-answer\">A: Ein Test, bei dem die Temperatur wiederholt ge\u00e4ndert wird, um eine langfristige Umweltbelastung zu simulieren.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1780323397238\"><strong class=\"schema-faq-question\">F: Warum sind Burn-in-Tests wichtig?<\/strong> <p class=\"schema-faq-answer\">A: Es hilft, schwache Komponenten und fr\u00fchzeitige Ausf\u00e4lle zu erkennen.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1780323410015\"><strong class=\"schema-faq-question\">F: F\u00fcr welche Branchen sind PCB-Zuverl\u00e4ssigkeitstests erforderlich?<\/strong> <p class=\"schema-faq-answer\">A: In der Automobil-, Luft- und Raumfahrt-, Medizin-, Industrie- und Telekommunikationsbranche ist dies h\u00e4ufig erforderlich.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1780323422438\"><strong class=\"schema-faq-question\">F: K\u00f6nnen Funktionstests Zuverl\u00e4ssigkeitstests ersetzen?<\/strong> <p class=\"schema-faq-answer\">A: Nein. Funktionstests pr\u00fcfen den Betrieb, w\u00e4hrend Zuverl\u00e4ssigkeitstests die Haltbarkeit im Laufe der Zeit \u00fcberpr\u00fcfen.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>PCB-Zuverl\u00e4ssigkeitstests helfen bei der \u00dcberpr\u00fcfung der langfristigen Leistung unter harten Betriebsbedingungen. Methoden wie Temperaturwechsel, Burn-in und Vibrationstests sind in der Automobil-, Industrie-, Luft- und Raumfahrt- und Medizinelektronik weit verbreitet. Dieser Artikel erkl\u00e4rt, wie die Zuverl\u00e4ssigkeitspr\u00fcfung von Leiterplatten funktioniert und warum sie wichtig ist.<\/p>","protected":false},"author":1,"featured_media":660,"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":[67],"class_list":["post-761","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-pcb-reliability-testing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PCB Reliability Testing: Thermal Cycling, Burn-In, and Vibration Test<\/title>\n<meta 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What is PCB reliability testing?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: It evaluates long-term PCB performance under stress conditions.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323386862\",\"position\":2,\"url\":\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323386862\",\"name\":\"Q: What is thermal cycling testing?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: A test that repeatedly changes temperature to simulate long-term environmental 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PCB-Zuverl\u00e4ssigkeitstest?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: It evaluates long-term PCB performance under stress conditions.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323386862","position":2,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323386862","name":"F: Was ist eine Temperaturwechselpr\u00fcfung?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: A test that repeatedly changes temperature to simulate long-term environmental stress.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323397238","position":3,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323397238","name":"F: Warum sind Burn-in-Tests wichtig?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: It helps identify weak components and early-life failures.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323410015","position":4,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323410015","name":"F: F\u00fcr welche Branchen sind PCB-Zuverl\u00e4ssigkeitstests erforderlich?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Automotive, aerospace, medical, industrial, and telecom industries commonly require it.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323422438","position":5,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#faq-question-1780323422438","name":"F: K\u00f6nnen Funktionstests Zuverl\u00e4ssigkeitstests ersetzen?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: No. Functional testing verifies operation, while reliability testing verifies durability over time.","inLanguage":"de"},"inLanguage":"de"},{"@type":"HowTo","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#howto-1","name":"PCB-Zuverl\u00e4ssigkeitstests: Thermisches Zyklieren, Burn-In und Vibrationstest","mainEntityOfPage":{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/"},"description":"Gute Zuverl\u00e4ssigkeit beginnt beim Design.","step":[{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#how-to-step-1780323167938","name":"1. Choose Proper Materials","itemListElement":[{"@type":"HowToDirection","text":"Material selection matters.<br\/>For example:<br\/>. high-Tg FR4<br\/>. ceramic substrates<br\/>. low-CTE materials<br\/>Related: <strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/fr4-pcb-vs-high-tg-fr4\/\">FR4 vs High-Tg FR4: What\u2019s the Difference<\/a><\/strong>"}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#how-to-step-1780323228349","name":"2. Improve Thermal Design","itemListElement":[{"@type":"HowToDirection","text":"Poor thermal management accelerates failure."}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#how-to-step-1780323235959","name":"3. Strengthen Solder Joint Reliability","itemListElement":[{"@type":"HowToDirection","text":"Proper pad design reduces stress."}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#how-to-step-1780323249447","name":"4. Reduce Mechanical Weakness","itemListElement":[{"@type":"HowToDirection","text":"Support:<br\/>. connectors<br\/>. large components<br\/>. heavy modules"}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-reliability-testing-thermal-cycling-burn-in-vibration\/#how-to-step-1780323278099","name":"5. Design for Manufacturability","itemListElement":[{"@type":"HowToDirection","text":"Consistent manufacturing improves reliability.<br\/>Related: <strong><a href=\"https:\/\/www.han-sphere.com\/blog\/news\/high-speed-pcb-design-for-manufacturing-and-yield\/\">High-Speed PCB Design for Manufacturing &amp; Yield<\/a><\/strong>"}]}],"inLanguage":"de"}]}},"_links":{"self":[{"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/posts\/761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/comments?post=761"}],"version-history":[{"count":2,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/posts\/761\/revisions"}],"predecessor-version":[{"id":763,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/posts\/761\/revisions\/763"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/media\/660"}],"wp:attachment":[{"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/media?parent=761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/categories?post=761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.han-sphere.com\/de\/wp-json\/wp\/v2\/tags?post=761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}