In automotive industry the IEC standard Q100/101 is used as a guideline for stress testing and reliability requirements. The launch of Hybrid Electrical Vehicles with high power semiconductor modules integrated in the vehicles lead to the application of IEC standard also to power modules. Suddenly the traditional module supplier was forced to fulfill significantly higher thermal demands when building modules for automotive applications. Nowadays, most of the module suppliers solved this issue, but the demanding automotive industry has started to increase the thermal requirements for the next generation of modules. This paper deals with the questions if the thermal shock test mentioned in the IEC Q101 standard is appropriate and if an increasing demand for thermal load can be addressed by simply increasing the required number of cycles (e.g. to 2000). As an example, three different types of modules are compared and it is shown that reaching a simple number in a stress test is not representative of the application itself.
Facing high thermal loads on power modules in Hybrid Electrical Vehicles
2010
7 Seiten, 9 Bilder, 19 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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