Patent ID: 9006800
Filing Date: 2015-04-14
Classification: H01L

Abstract:
1. A power device comprising: a drain comprising a first III-nitride material; a drain contact electrically coupled to the drain; a drift region comprising a second III-nitride material coupled to the drain and disposed adjacent to the drain along a vertical direction; a channel region comprising a third III-nitride material coupled to the drift region; a gate region at least partially surrounding the channel region; a gate contact electrically coupled to the gate region; a source coupled to the channel region, wherein the source comprises (i) a gallium nitride layer and (ii) a crystalline indium gallium nitride (InGaN) layer coupled to the gallium nitride layer; and a source contact electrically coupled to the source; wherein the channel region is disposed between the drain and the source along the vertical direction such that current flow during operation of the power device is along the vertical direction.