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通过采用显微镜和扫描电镜,对3DJ7K型场效应管管腿断裂进行了失效分析,分析讨论了管腿断裂损坏的原因,指出这种断裂损坏是属于随机往复振动下产生的疲劳断裂,并提出了装配时应注意的事项。
Through the use of microscope and scanning electron microscope, the failure analysis of 3DJ7K field-effect transistor tube leg rupture was carried out. The reason of tube leg rupture damage was analyzed and discussed. It was pointed out that the rupture damage was caused by random reciprocating vibration and proposed Matters needing attention during assembly