Patent ID: 8884302

Claim:
A semiconductor device comprising: a first gate electrode and a second gate electrode apart from each other over an insulating surface; an oxide semiconductor film comprising a region overlapping with the first gate electrode with a gate insulating film interposed therebetween, a region overlapping with the second gate electrode with the gate insulating film interposed therebetween, and a region overlapping with neither the first gate electrode nor the second gate electrode; one of a source electrode and a drain electrode overlapping with a part of the first gate electrode and a part of the oxide semiconductor film; the other of the source electrode and the drain electrode overlapping with a part of the second gate electrode and a part of the oxide semiconductor film; and an insulating film covering the gate insulating film, the first gate electrode, the second gate electrode, the oxide semiconductor film, the source electrode, and the drain electrode, the insulating film being in direct contact with the oxide semiconductor film.