Robustness study of a module on the basis of a representative drive cycle is mandatory for safety reasons, cost and lifetime estimation. The power modules for motor drives are subject to multiple failure modes which are due to many damaging factors. Generally we perform the damage evaluation of power modules by thermal and active power cycling ageing tests. The objective of this paper is to define a method, which enables us to discriminate the criticity of a specific mission profile in order to evaluate and reduce the impact on lifetime. Complementary, a dedicated power cycling test bench will permit to evaluate the combined effect of the main critical factors (current density J, temperature fluctuation AT, maximum temperature Tmax) as well as the cumulative stress when combining two levels of factors. Thus new power module technologies can be tested rapidly and efficiently.


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    Titel :

    The combined effect of failure factors in power modules for automotive applications


    Beteiligte:
    Bachti, S. (Autor:in) / Dupont, L. (Autor:in) / Loudot, S. (Autor:in) / Coquery, G. (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    8 Seiten, 6 Bilder, 4 Tabellen, 19 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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