A high reliability level is required for IGBT modules used in power converters in railway traction applications, which are subject to high stress due to the typical cycling operations which cause thermomechanical fatigue. The paper reports Ansaldo Trasporti activity in IGBT reliability testing. A facility simulating the worst case traction operation is described and the results after operation are presented; due to the stressing action, a solder delamination at the base plate seems to be the first failure mechanism to be excited.
Long term reliability testing of HV-IGBT modules in worst case traction operation
ESREF, European Symposium on Reliability of Electron Devices, Failure Physics and Analysis, 10 ; 1137-1142
Microelectronics Reliability ; 39 , 6-7
1999
6 Seiten, 11 Quellen
Aufsatz (Konferenz)
Englisch
Montage , Schichtablösung , Fehleranalyse , IGBT (insulated gate bipolar transistor) , Eigenspannung , Lokomotive , Umformer (Energietechnik) , Eisenbahn , Halbleitergehäuse , Halbleiterbauelement , Zuverlässigkeit , Zugbeanspruchung , Modulbauweise , thermomechanische Eigenschaft , Ausfallmechanismus
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