Patent ID: 9099545
Filing Date: 2015-08-04
Classification: H01L

Abstract:
1. A method of manufacturing a compound semiconductor device, comprising: forming a compound semiconductor layer on a substrate; forming a first insulating film on the compound semiconductor layer; forming a pair of first openings in the first insulating film, the pair of first openings being configured to partially expose the compound semiconductor layer; forming a first conductive material on the first insulating film in such a manner that the first conductive material is in the first openings; forming first masks on portions of the first conductive material corresponding to the first openings; processing the first conductive material with the first masks to form a source electrode and a drain electrode; forming a second insulating film on the first insulating film; forming a second opening in at least the second insulating film; forming a second conductive material on the second insulating film in such a manner that the second conductive material is in the second opening; forming a second mask on a portion of the second conductive material corresponding to the second opening; and processing the second conductive material with the second mask to form a gate electrode.