Patent ID: 7081420

Claim:
A fabrication process of a SiC crystal, the process epitaxially grows a SiC crystal at a pressure of 1–1000 Torr and a temperature of 1400° C. or higher onto a SiC single crystal substrate having hollow-care defects, called micropipes, by supplying a source gas which contains in a carrier gas a carbon atom-containing substance and a silicon atom-containing substance, characterized in that: a number ratio of the carbon to silicon atoms (C/Si ratio) in the source gas is adjusted to be in such a range that crystal growth rate is determined by carbon atom supply limitation, a plurality of layers of the SiC crystal are epitaxially grown and layered, wherein hollow-core defects having been present in the substrate dissociate into a plurality of dislocations given by small Burgers vector without any hollow-cores, whereby hollow-core defects that have been present in the substrate do not propagate to a surface of the SiC crystal.