Patent ID: 9553151
Date: 2017-01-24
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: a substrate comprising gallium nitride; a low-defect layer of gallium nitride disposed on said substrate; a barrier layer of aluminum gallium nitride disposed on said low-defect layer; a gallium nitride field effect transistor (GaN FET), comprising: a first gate isolating structure and a second gate isolating structure disposed over said barrier layer and comprising a same material as said gate, said first gate isolating structure being located between a first region of said semiconductor device and a second region of said semiconductor device and said second gate isolating structure being located between the first region of the semiconductor device and a third region of the semiconductor device, wherein said first gate isolating structure is contiguous with said gate and said second gate isolating structure is separate from said gate.