Patent ID: 9171900
Filing Date: 2015-10-27
Classification: H01L

Abstract:
1. A III-nitride semiconductor device, comprising: a III-nitride substrate of a first conductivity type and characterized by a first dopant concentration; a first III-nitride epitaxial layer of the first conductivity type coupled to the III-nitride substrate, wherein the first III-nitride epitaxial layer is characterized by a first charge density and a second dopant concentration, wherein the second dopant concentration is less than the first dopant concentration; a second III-nitride epitaxial layer of a second conductivity type coupled to the first III-nitride epitaxial layer; and an implanted region in the first III-nitride epitaxial layer, wherein the implanted region of the first III-nitride epitaxial layer is characterized by a second charge density, and wherein the second charge density is lower than the first charge density.