Patent ID: 8936682
Filing Date: 2015-01-20
Classification: C30B,H01L

Abstract:
1. A manufacturing method of a SiC single crystal comprising growing a SiC single crystal on a surface of a SiC seed crystal, wherein the SiC seed crystal satisfies following conditions (i) to (iii): (i) the SiC seed crystal includes a main growth surface composed of a plurality of sub-growth surfaces and the main grown surface is an exposed surface of the SiC single crystal whose normal vector has a component in a crucible central axis raw material direction; (ii) among directions from an uppermost portion of a {0001} plane on the main growth surface to portions on a periphery of the main growth surface, the SiC seed crystal has a main direction in which a plurality of sub-growth surfaces is arranged; and (iii) in a case where the sub-growth surfaces located from the uppermost portion of the {0001} plane to the periphery in the main direction are defined in order as a first sub-growth surface, a second sub-growth surface, . . . an n-th sub-growth surface (n≧2), an offset angle θ wherein an offset angle θ