It is well known that SiC can be thermally oxidized to form SiO2 layer
s. And Si MOSFET IC's using thermally grown SiO2 gate dielectrics are
the predominant IC technology in the world today. However the SiC/SiO2
interface has not been well characterized as was the case for Si MOS
in the early 1960's. This paper presents data which for the first time
characterizes the SiC/SiO2 interface and explains one of the previous
ly unexplained abnormalities observed in the characteristics of SiC MO
SFET's.