Patent ID: 9147808
Filing Date: 2015-09-29
Classification: H01L

Abstract:
1. An III-nitride quantum well structure comprising: a gallium nitride base having a gallium nitride buffering layer, a gallium nitride post extending from the gallium nitride buffering layer along an axis, and a gallium nitride pyramid gradually expanding from the gallium nitride post along the axis to form a mounting surface, wherein the mounting surface is distant to the gallium nitride post; an indium gallium nitride layer having a first coupling face and a second coupling face opposite to the first coupling face, wherein the first coupling face is coupled with the mounting surface of the gallium nitride base; and a gallium nitride covering layer having a first coupling face and a second coupling face opposite to the first coupling face of the gallium nitride covering layer, wherein the first coupling face of the gallium nitride covering layer is coupled with the second coupling face of the indium gallium nitride layer, wherein the gallium nitride pyramid gradually expands from the gallium nitride post to the indium gallium nitride layer.