Patent ID: 9209309
Filing Date: 2015-12-08
Classification: H01L

Abstract:
1. A thin-film semiconductor device having at least a first thin-film transistor and a second thin-film transistor, wherein the first thin-film transistor includes: a first gate electrode; a first insulating film on the first gate electrode; a first semiconductor layer which is on the first insulating film and has, as a channel region, a region that is opposite to the first gate electrode with the first insulating film therebetween; a first contact layer of a first conductivity type in contact with and above at least a portion of the semiconductor layer; a first source electrode on the first contact layer; and a first drain electrode opposite to the first source electrode on the first contact layer, and the second thin-film transistor includes: a second gate electrode; a second insulating film on the second gate electrode; a second semiconductor layer which is on the second insulating film and has, as a channel region, a region that is opposite to the second gate electrode with the second insulating film therebetween; a second contact layer of a second conductivity type in contact with at least a portion of sides of the semiconductor layer, the second conductivity type being different from the first conductivity type; a second source electrode on the second contact layer; and a second drain electrode opposite to the second source electrode on the second contact layer.