Determination of State-of-Health and Remaining Lifetime of Power Modules
Konferenz: PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
16.05.2017 - 18.05.2017 in Nürnberg, Deutschland
Tagungsband: PCIM Europe 2017
Seiten: 4Sprache: EnglischTyp: PDF
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Autoren:
Franke, Joerg; Herold, Christian; Tinschert, Lukas; Lutz, Josef (Technical University Chemnitz, Germany)
Inhalt:
A method for remaining lifetime determination of power modules is presented. The bond shear force of bond wires after certain power cycles was compared to power cycling test results. A difference in remaining lifetime determination of approximately 50 % was found. The work focusses on elaboration of a model of dependency of remaining shear force to the number of power cycles as well as the validity of power cycling tests results for remaining lifetime statements. A further indicator, scanning acoustic microscopy of substrate solder, is investigated to determine the relation between decreasing area of solder connection and remaining lifetime.