Patent ID: 9048169
Filing Date: 2015-06-02
Classification: H01L,Y02E

Abstract:
1. A method of fabricating a device layer structure, comprising: providing a gallium nitride semiconductor layer carried by a growth substrate, wherein the gallium nitride semiconductor layer has a gallium polar surface and a nitrogen polar surface closer to the growth substrate than the gallium polar surface; bonding the gallium nitride semiconductor layer to a first bonding substrate, wherein the gallium nitride semiconductor layer has the gallium polar surface closer to the first bonding substrate than the nitrogen polar surface; removing the growth substrate such that the gallium nitride semiconductor layer is carried by the first bonding substrate; and growing at least a portion of a device layer structure comprising an indium gallium nitride material on the nitrogen polar surface of the gallium nitride semiconductor layer after removing the growth substrate such that the indium gallium nitride material is a nitrogen polar grown InGaN material, the indium gallium nitride material including a nitrogen polar exposed surface on a side thereof opposite the gallium nitride semiconductor layer; wherein the nitrogen polar grown InGaN material includes a light-emitting region, the device layer structure comprising a single layer of the indium gallium nitride material grown pseudomorphically below a critical thickness of the single layer of the indium gallium nitride material on the gallium nitride semiconductor layer.