Patent ID: 8174048
Filing Date: 2012-05-08
Classification: H01L

Abstract:
1. A current control III-nitride device, comprising: a conduction channel that includes a two-dimensional electron gas (2DEG) formed at an interface between two III-nitride materials having different in-plane lattice constants or different band gaps wherein one of the two III-nitride materials is an electron supply layer for said 2DEG, said 2DEG including a region of reduced density; a first electrode making a schottky contact to said electron supply layer and disposed over the region of reduced density; a second electrode in ohmic contact with said electron supply layer adjacent said first electrode; and a third electrode in ohmic contact with said electron supply layer, wherein the first electrode overlies the third electrode; said current control III-nitride device configured to carry current between said second electrode and said third electrode when said third electrode is forward biased and block current when reverse biased compared to said second electrode.