Possible failure modes in Press-Pack IGBTs

被引:73
作者
Tinschert, Lukas [1 ,2 ]
Ardal, Atle Rygg [3 ]
Poller, Tilo [1 ,2 ]
Bohllaender, Marco [1 ,2 ]
Hemes, Magnar [3 ]
Lutz, Josef [1 ,2 ]
机构
[1] Tech Univ Chemnitz, Chair Power Elect, Chemnitz, Germany
[2] Tech Univ Chemnitz, EMC, Chemnitz, Germany
[3] SINTEF Energi AS, Trondheim, Norway
关键词
Press-Pack; IGBT; Packaging; Simulation; Power Cycling; Reliability;
D O I
10.1016/j.microrel.2015.02.019
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Reliability of Press-Pack IGBTs is a topic with limited published data and information. This paper presents results of a power cycling test with state-of-the-art high power devices. An accelerated lifetime test scheme was defined, and six out of eight devices were tested until failure. A microscopy analysis has been performed on some of the failed devices, and they have all failed in a very similar manner. In order to gain additional information about the thermal-mechanical stress, a detailed 3D Finite Element Method (FEM)-analysis has been conducted. The combined results from power cycling, microscopy and FEM have been concluded to two possible failure modes in Press-Pack IGBTs: Gate oxide damage and micro arcing. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:903 / 911
页数:9
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