To additional increase its SiC technology, Infineon invested lots into testing on-state oxide reliability of electrically screened SiC MOSFETs and the off state oxide stress because of the electric field problems in SiC power devices. Study all about how Infineon controls and assures the reliability of SiC based power semiconductors https://www.quora.com/profile/Trevor-Flatcher-2/Advantages-and-Challenges-of-Silicon-Carbide-Specialty-Ceramics-Macrocosm-Materials-Company-Overview-Founded-in-2016