Patent ID: 6847039

Claim:
A photodetecting device comprising: a pixel portion in which a plurality of pixels are disposed two dimensionally on a substrate, wherein each pixel includes a photoelectric conversion element that converts an incident light into an electrical signal, and a switching element corresponding to the photoelectric conversion element; a plurality of driving wirings for driving the pixels, wherein the driving wirings are connected to the plurality of switching elements of each row of the pixels; a plurality of signal wirings for reading an electric signal generated in the photoelectric conversion elements, wherein the signal wirings are connected to the switching elements of each column of the pixels; a plurality of common bias wirings for applying electric charge to the plurality of photoelectric conversion elements, wherein the common bias wirings are connected to the plurality of photoelectric elements; and an insulating layer covering the substrate and the pixels, wherein each of the signal wirings is disposed on the insulating layer in a gap between adjacent columns of the pixels.