Patent ID: 8823057
Filing Date: 2014-09-02
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a channel layer of a first conductivity type; a surface layer on the channel layer; a protective layer on the surface layer; an implanted region including a distribution of implanted dopants of the first conductivity type extending into the surface layer and the channel layer and within a portion of the protective layer, wherein a portion of the channel layer into which the implanted region extends has a higher conductivity than the surface layer, wherein the distribution of implanted dopants has an implanted dopant concentration of at least about 5×10 wherein the distribution of implanted dopants has a substantially uniform concentration throughout the implanted region in the surface layer, and wherein the distribution of implanted dopants does not have a substantially uniform concentration throughout the implanted region in the channel layer; a first electrode on the implanted region of the surface layer; and a second electrode on a non-implanted region of the surface layer that is spaced apart from the implanted region.