Analysis of Field-Stressed Power Inverter Modules from Electrified Vehicles Infineon Technologies Korea Company, Limited

Format:

Conference/Event

Author/Creator:

Heo, Heo, author.

Contributor:

Choi, Yun Kyu

Pannemann, Christoph

Strass, Achim

Conference Name:

SAE 2015 World Congress & Exhibition (2015-04-21 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractThis paper presents a reliability study of a directly cooled IGBT module after a test drive of 85,000 Km in a fuel cell electric vehicle, as well as of an indirectly cooled IGBT module after a test drive of 200,000km in a hybrid car on public roads.At the end of the test drive, the inverter units were disassembled and analyzed with regard to the lifetime consumption. First, electrical measurements were carried out and the results were compared with the ones obtained directly after module production (End of Line test). After that, ultrasonic microscopy was performed in order to investigate any delamination in the solder layers. As a third step, an optical inspection was performed to monitor damages in the housing, formation of cracks or degradation of wire bonds.The results show none of the depicted failure modes could be found on the tested power modules after the field test. Obviously, no significant life time consumption could be observed

Notes:

Vendor supplied data

Publisher Number:

2015-01-0421

Access Restriction:

Restricted for use by site license