Patent ID: 8148730

Claim:
A semiconductor device comprising: an island-shaped stack including a first conductive layer over a substrate, a first insulating layer over the first conductive layer, a first semiconductor layer over the first insulating layer, and a second semiconductor layer containing an impurity element having one conductivity type over the first semiconductor layer; a sidewall comprising a second insulating layer which is in contact with a side surface of the island-shaped stack including a side surface of the first conductive layer, a side surface of the first insulating layer, a side surface of the first semiconductor layer, and a side surface of the second semiconductor layer; and a second conductive layer over the island-shaped stack and the sidewall, wherein the second conductive layer has a layered structure including at least a transparent conductive layer, wherein a part of the transparent conductive layer is a pixel electrode, and wherein the pixel electrode is in contact with the substrate.