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PHM features for large circuit boards to be implemented into electric drivetrain applications

 
: Otto, A.; Kaulfersch, E.; Singh, P.; Romano, C.; Hildebrandt, M.; Rzepka, S.

:

American Society of Mechanical Engineers -ASME-; American Society of Mechanical Engineers -ASME-, Electronic and Photonic Packaging Division:
ASME International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems 2020. Proceedings : October 27-29, 2020, Virtual
New York/NY.: ASME, 2020
ISBN: 978-0-7918-8404-1
Paper V001T01A005, 10 S.
International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems (InterPACK) <2020, Online>
Englisch
Konferenzbeitrag
Fraunhofer ENAS ()

Abstract
Canary structures being used as early warning indicators represent an important tool for condition and health monitoring of electronic components and systems. In this paper, printed circuit boards with canary structures based on SMD 2512 ceramic chip resistors with reduced solder pad sizes were studied. Focus of these investigations was set on thermo-mechanical and mechanical stresses caused by passive thermal cycling as well as by vibrational loads. For this purpose, experimental methods such as deformation analysis and accelerated ageing tests as well as finite element based methods were applied. In addition, an outlook on the implementation of these canary structures into dual inverter electronic control boards for electrical powertrain applications will be given.

: http://publica.fraunhofer.de/dokumente/N-618789.html