Power cycling induced failure mechanisms in the viewpoint of rough temperature environment

Conference: CIPS 2008 - 5th International Conference on Integrated Power Electronics Systems
03/11/2008 - 03/13/2008 at Nuremberg, Germany

Proceedings: CIPS 2008

Pages: 4Language: englishTyp: PDF

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Lutz, J.; Herrmann, T.; Feller, M. (Chemnitz University of Technology)
Bayerer, R.; Licht, T. (Infineon Technologies)
Amro, Raed (Palestine Polytechnic University, Hebron)

Applications of power electronic devices in hybrid electric cars demand a higher allowed junction temperature of the power devices, if compact inverters close to the engine which use the combustion engine cooling circuit (with water temperatures up to T=115deg C) are required. Main challenge is the packaging technology. This paper reports on different power cycling tests, failure mechanisms and possible improvements.