Patent ID: 9082860
Filing Date: 2015-07-14
Classification: H01L

Abstract:
1. A semiconductor device comprising: a gate electrode; a gate insulating film; a first metal oxide film; a source electrode and a drain electrode which are in contact with the first metal oxide film; and a passivation film over the first metal oxide film, the source electrode and the drain electrode, wherein the passivation film comprises a first insulating film, a second metal oxide film, and a second insulating film, wherein the gate insulating film is sandwiched between the gate electrode and the first metal oxide film, wherein each of the first metal oxide film and the second metal oxide film contains at least two kinds of elements selected from In, Ga, Sn, and Zn, wherein the first metal oxide film is a semiconductor and the second metal oxide film is an insulator, wherein the second metal oxide film is sandwiched between the first insulating film and the second insulating film, and wherein the first insulating film is in contact with the first metal oxide film.