Predictive reliability, prognostics and risk assessment for power modules

Bailey, C., Lu, H., Yin, C. and Ridout, S. (2008) Predictive reliability, prognostics and risk assessment for power modules. In: CIPS 2008: 5th International Conference on Integrated Power Electronics Systems. Proceedings, March, 11-13, 2008 Nuremberg/Germany. ETG-Fachbericht (111). VDE Verlag GmbH, Berlin-Offenbach, Germany, pp. 19-26. ISBN 9783800730896

Abstract

This paper describes a framework that is being developed for the prediction and analysis of electronics power module reliability both for qualification testing and in-service lifetime prediction. Physics of failure (PoF) reliability methodology using multi-physics high-fidelity and reduced order computer modelling, as well as numerical optimization techniques, are integrated in a dedicated computer modelling environment to meet the needs of the power module designers and manufacturers as well as end-users for both design and maintenance purposes. An example of lifetime prediction for a power module solder interconnect structure is described. Another example is the lifetime prediction of a power module for a railway traction control application. Also in the paper a combined physics of failure and data trending prognostic methodology for the health monitoring of power modules is discussed.

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