Patent ID: 9269789
Filing Date: 2016-02-23
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor device comprising: providing a base substrate of a first semiconductor material, wherein the base substrate defines a first current carrying electrode of the semiconductor device; forming a III-nitride channel layer over the base substrate; forming a III-nitride barrier layer over the channel layer; forming a second current carrying electrode of the semiconductor device in the barrier layer; forming a gate of the semiconductor device overlying a portion of the barrier layer and spaced apart from the second current carrying electrode; and forming a first internal conductor structure extending from the barrier layer through the channel layer to the base substrate comprising a first conductor within the barrier layer, a second conductor extending from the first conductor to the base substrate and an insulator between the second conductor and the channel layer, wherein the first internal conductor structure forms a low resistance vertical electrical current path from the base substrate to the barrier layer.