It proves to get long-time period stable and does not drift beyond the datasheet limits. Infineon makes certain product parameters - RDS(on) and VSD - stay within datasheet limitation for your Procedure lifetime by adhering to: The primer functions for a protecting layer and boosts the adhesion of the topcoat. https://www.quora.com/profile/Trevor-Flatcher-2/The-Versatile-Applications-of-Silicon-Carbide-Special-Ceramics-in-Modern-Industries-Silicon-carbide-SiC-special-ceram