Abstract

In this paper, the forward biased safe operating area (FBSOA) of the super junction MOSPET (also called CoolMOS) is studied. The FBSOA of a 600-V CoolMOS transistor-SPP20N60S5 is experimentally obtained. The FBSOA characteristic and the FBSOA failure mechanisms are analyzed in detail with the help of numerical simulations. The impact of the charge imbalance on the FBSOA is also studied in this work.

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