Patent ID: 7560734
Filing Date: 2009-07-14
Classification: G02F,H01L

Abstract:
1. A semiconductor device comprising: a gate wiring over a substrate; first and second pixels adjacent to each other with the gate wiring interposed therebetween, the first pixel comprising: a semiconductor layer over the substrate, the semiconductor layer comprising: an insulating film provided over the semiconductor layer, and covering edges of the semiconductor layer; a gate electrode having a tapered portion, and provided over the insulating film; a capacitor comprising a capacitor electrode, a portion of the semiconductor layer overlapped with the capacitor electrode, and a first portion of the insulating film overlapped with the capacitor electrode; wherein a portion of the second impurity region is overlapped with the gate electrode, wherein a thickness of a second portion of the insulating film overlapped with the gate electrode is thicker than a thickness of a third portion of the insulating film overlapping the second impurity regions, wherein the gate electrode is a portion of the gate wiring, and wherein the semiconductor layer extends in the second pixel.