Prediction of Short-Circuit-Related Thermal Stress in Aged IGBT Modules

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Abstract

In this paper, the thermal stress on bond wires of aged IGBT modules under short-circuit conditions has been studied with respect to different solder delamination levels. To ensure repeatable test conditions, ad-hoc DBC (direct bond copper) samples with delaminated solder layers have been purposely fabricated. The temperature distribution produced by such abnormal conditions has been modelled first by means of FEM simulations and then experimentally validated by means of a non-destructive testing technique including an ultra-fast infrared camera. Results demonstrate a significant imbalance in the surface temperature distribution which confirms the hypothesis that short-circuit events produce significantly uneven stresses on bond wires.
OriginalsprogEngelsk
TitelProceedings of IEEE Energy Conversion Congress and Exposition (ECCE), 2016
Antal sider7
ForlagIEEE Press
Publikationsdatosep. 2016
ISBN (Elektronisk)978-1-5090-0737-0
DOI
StatusUdgivet - sep. 2016
Begivenhed 8th Annual IEEE Energy Conversion Congress & Exposition: ECCE 2016 - Milwaukee, WI, USA
Varighed: 18 sep. 201622 sep. 2016
http://www.ieee-ecce.org/

Konference

Konference 8th Annual IEEE Energy Conversion Congress & Exposition
Land/OmrådeUSA
ByMilwaukee, WI
Periode18/09/201622/09/2016
SponsorIEEE, IEEE Industry Applications Society (IAS), IEEE Power Electronics and Industry Applications Societies (PELS)
Internetadresse

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