Patent ID: 8470091

Claim:
A silicon carbide single crystal epitaxial wafer comprising: a silicon carbide single crystal substrate having an offset direction of a [11-20]-orientation direction; and an epitaxial film disposed on the silicon carbide single crystal substrate, wherein the epitaxial film includes a threading dislocation with a dislocation line, which penetrates a (0001)-plane c-face, wherein an angle between the direction of the dislocation line of the threading dislocation and a [0001]-orientation c-axis is in a range between minus three degrees and plus twenty degrees, wherein a positive sense of the angle is defined by a direction from the c-axis to a normal direction of a substrate surface, the normal direction being arranged between the [11-20]-orientation direction and the c-axis, and wherein the threading dislocation is disposed on a (1-100)-face, wherein the angle between the direction of the dislocation line of the threading dislocation and the [0001]-orientation c-axis is in a range between minus three degrees and plus three degrees with a center of 17 degrees, and wherein a positive sense of the angle is defined by a direction from the c-axis to a normal direction of a substrate surface, the normal direction being arranged between the [11-20]-orientation direction and the c-axis.