Patent ID: 8906487
Filing Date: 2014-12-09
Classification: C30B,H01L,Y10S,Y10T

Abstract:
1. A base material with a single crystal silicon carbide film, comprising: an insulating film including silicon oxide disposed on a silicon substrate or a single crystal silicon film on a substrate; the single crystal silicon carbide film disposed on the insulating film, the insulating film being disposed on a plurality of recessed portions of the silicon substrate or the single crystal silicon, the single crystal silicon carbide film being disposed on the top end of the insulating film and the single crystal silicon carbide film being supported only by the insulating film, and a plurality of holes being surrounded by the insulating film and the single-crystal silicon carbide film, wherein the plurality of recessed portions are formed from the surface of the silicon substrate or the surface of the single crystal silicon film by selectively removing the silicon substrate or the single crystal silicon film.