Patent ID: 7808066

Claim:
An image sensor comprising: a semiconductor substrate including a pixel region and a peripheral circuit region; interlayer insulating films including lower metal wiring formed over the pixel region and the peripheral circuit region; lower electrodes formed in the pixel region over the interlayer insulating film and electrically connected to the lower metal wiring formed in the pixel region; a photodiode formed in the pixel region over the interlayer insulating film and the lower electrodes; an upper electrode formed in the pixel region over the photodiode; a protective layer formed in the pixel region and the peripheral circuit region over the semiconductor substrate including the upper electrode and the interlayer insulating film, the protective layer having a sloped portion in a region corresponding to the sidewall of the photodiode; via holes formed in the protective layer to expose the upper electrode and the lower metal wiring in the peripheral circuit region; and upper wiring formed over the protective layer including the via holes.