Patent ID: 8461590
Filing Date: 2013-06-11
Classification: H01L

Abstract:
1. A photodetector circuit comprising: a photoelectric conversion element; a first conductive layer; a first insulating layer over the first conductive layer; a first semiconductor layer overlapping with a first portion of the first conductive layer with the first insulating layer interposed therebetween; a second semiconductor layer overlapping with a second portion of the first conductive layer with the first insulating layer interposed therebetween; a second conductive layer electrically connected to a first portion of the first semiconductor layer, a first portion of the second semiconductor layer, and the photoelectric conversion element; and a third conductive layer electrically connected to a second portion of the first semiconductor layer and a second portion of the second semiconductor layer and overlapping with the first portion of the first conductive layer and the second portion of the first conductive layer, wherein the second portion of the first semiconductor layer is located between the first portion of the first semiconductor layer and the second portion of the second semiconductor layer, and wherein the second portion of the second semiconductor layer is located between the first portion of the second semiconductor layer and the second portion of the first semiconductor layer.