Patent ID: 8895936

Claim:
A pixel array comprising a plurality of pixels and having a pixel area and a logic area, each pixel comprising: a photoelectric conversion unit in the pixel area; pixel-area transistors in the pixel area adjacent to the photoelectric conversion unit and comprising a reset transistor, a drive transistor, and a select transistor; a first metal layer interconnecting the pixel area transistors, wherein the first metal layer comprises a reset signal, a select signal, a first gate connection connecting a gate of the select transistor to the select signal, and a second gate connection connecting a gate of the reset transistor to the reset signal; a second metal layer over the first metal layer, wherein the second metal layer is an uppermost metal layer of the pixel area; and a light reception unit over the second metal layer, wherein no metal layer exists between the second metal layer and the light reception unit, and no metal layer exists between the first metal layer and the second metal layer.