Humidity robustness for high voltage power modules: Limiting mechanisms and improvement of lifetime

During the last years applications for power modules with harsh environmental conditions have gained increasing importance. Static humidity tests with T = 85 °C and RH = 85% with high voltage have established as basic testing method for the humidity robustness of semiconductor power modules. The present work is showing the improvement of humidity robustness with respect to the established test methods. Electrical performance monitoring and analytic approaches to prove the results with respect to established work on the field of humidity testing.