Patent ID: 8247843
Filing Date: 2012-08-21
Classification: H01L

Abstract:
1. An etched grooved GaN-based permeable-base transistor device, comprising: a (0001) sapphire substrate; a GaN emitter region having a thickness of about 6 to 10 μm, and disposed on said (0001) sapphire; base and collector pads disposed on said GaN emitter region, He implanted at an implant angle of about 7° and implant depth of 2 μm under said base and collector pads; a GaN base region having a thickness of about 1 to 2 μm, and grown on the GaN emitter region using molecular beam epitaxy (MBE); and a GaN collector region having a thickness of about 0.1 to 0.3 μm, and a plurality of collector fingers having finger sidewall angles of about 80° to 85° for 1:1 and 1:3 finger spacing, wherein the collector region is disposed on the GaN base.