Patent ID: 9093512
Filing Date: 2015-07-28
Classification: H01L

Abstract:
1. A compound semiconductor device comprising: a nitride semiconductor stacked structure comprising a carrier transit layer and a carrier supply layer; a source electrode and a drain electrode provided over the nitride semiconductor stacked structure; a gate electrode provided between the source electrode and the drain electrode, over the nitride semiconductor stacked structure; a field plate provided at least partially between the gate electrode and the drain electrode; and a plurality of insulation films formed over the nitride semiconductor stacked structure, wherein the plurality of insulation films include a gate insulation film provided between the nitride semiconductor stacked structure and the gate electrode and a protection insulation film covering a surface, and the protection insulation film directly contacts the nitride semiconductor stacked structure between the field plate and the drain electrode, and contacts the gate insulation film in the vicinity of the gate electrode.