Patent ID: 9145622
Filing Date: 2015-09-29
Classification: C30B

Abstract:
1. A manufacturing method of a silicon carbide single crystal comprising: preparing a seed crystal made of silicon carbide, the seed crystal having a growth surface and a stacking fault generation region, the seed crystal including a threading dislocation that reaches the growth surface, the growth surface inclined at a predetermined angle from a (0001) plane, the stacking fault generation region configured to cause a stacking fault in the silicon carbide single crystal when the silicon carbide single crystal is grown, the stacking fault generation region located at an end portion of the growth surface in an offset direction that is a direction of a vector defined by projecting a normal vector of the (0001) plane onto the growth surface; joining the seed crystal to a pedestal; and growing the silicon carbide single crystal on the growth surface of the seed crystal, wherein the preparing the seed crystal includes: growing another silicon carbide single crystal on the surface of the first substrate to form a second substrate that includes the first substrate and the another silicon carbide single crystal; and wherein a cut-out surface of the second substrate forms the growth surface of the seed crystal and a cut-out surface of the another silicon carbide single crystal forms the stacking fault generation region, and wherein the surface of the first substrate is parallel to a <1-100> direction.