Abstract
It is of great importance to investigate the electrical properties of SiC p-channel MOSFETs for development of SiC CMOS technology. In the present report, we investigated dependences of electrical properties of the SiC p-channel MOSFETs on SiC poly-types. The on-state characteristics (channel mobility, threshold voltage, and temperature dependences) for the 4H- and 6H-SiC p-channel MOSFETs showed similar behavior, although those of 4H-SiC n-channel MOSFETs are usually quite different from those of 6H-SiC. These results might be caused by the similar SiC MOS interface state distribution around the valence band edge.
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