Patent ID: 9728404
Date: 2017-08-08
CPC Classifications: C30B,H01L

Claim:
1. A method of growing a nitride semiconductor layer, the method comprising: growing a gallium nitride-based defect dispersion suppressing layer over a gallium nitride substrate comprising non-defect regions and a defect region disposed between the non-defect regions, wherein the gallium nitride-based defect dispersion suppressing layer is grown over the non-defect regions and the defect region disposed between the non-defect regions; and growing a gallium nitride-based semiconductor layer over the defect dispersion suppressing layer, wherein the defect dispersion suppressing layer is grown at a temperature in a range of 900° C. to 1030° C., and the growth temperature of the defect dispersion suppressing layer is lower than the growth temperature of the gallium nitride-based semiconductor layer; and wherein the gallium nitride substrate comprises a semi-polar or nonpolar substrate, and the non-defect regions comprise different off-angles with respect to a [0001] direction.