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Radiation effects were demonstrably observed in silicon carbide power MOSFETs caused by heavy ion and proton irradiation. For higher LET ions, permanent damage (increase in both drain and gate leakage current) was observed similar to SiC Schottky Barrier diodes in our previous study. For lower LET ions, including protons, Single Event Burnouts (SEBs) were observed and there was no leakage current increase just before SEBs. The phenomenon is unique for SiC devices.
Mizuta et al. (Thu,) studied this question.