电力电子MOSFET短路故障诊断：过压、ESD、热失控根因分析及5-Why鱼骨图。
症状 MOSFET漏源电阻接近零（短路） 栅氧化层击穿——栅源也短路（通常200mJ 增加栅源有源钳位（齐纳+BJT电路） D7 预防 设计评审加入电力电子布局强制签审 所有新设计必须做125°C结温双脉冲测试 更新DFMEA：提高寄生电感失效的频度和探测度评分
8D.wiki — Quality Engineering Knowledge Base
8D.wiki is an AI-powered 8D problem-solving workspace for generating complete 8D reports, built for IATF 16949 environments. Features include AI root cause analysis, 5-Why methodology, and one-click PDF/Word export. Start generating your free 8D report today.
The 8D (Eight Disciplines) problem-solving methodology is the global standard for quality engineering under IATF 16949. It guides teams through D0 (Preparation and Emergency Response), D1 (Cross-Functional Team Formation), D2 (Problem Description using 5W2H), D3 (Interim Containment Actions), D4 (Root Cause Analysis), D5 (Permanent Corrective Action Verification), D6 (Implementation of Corrective Actions), D7 (Recurrence Prevention), and D8 (Team Recognition and Closure). Each discipline provides a structured approach to identifying root causes, implementing effective solutions, and preventing recurrence.
Access comprehensive articles on FMEA integration, Poka-Yoke mistake-proofing, supplier collaboration, digital quality transformation, ghost change detection, statistical analysis for quality engineers, and real-world case studies from the automotive industry. Our content is written by practicing quality engineers with decades of combined experience.
