Patent ID: 7863661

Claim:
A solid-state imaging device comprising: unit pixels arranged in rows and columns on a semiconductor substrate; and a common well having a first conductivity type provided on the semiconductor substrate, wherein said unit pixels include two kinds of unit pixels including a first unit pixel and a second unit pixel that are provided on the common well and adjacent to each other, said first unit pixel includes: a first photoelectric conversion region which converts light into a signal charge and which has the first conductivity type; a first semiconductor region which is provided on the common well, which has the first conductivity type and which is separated from the first photoelectric conversion region by an element isolation region; and a first contact electrically connected to said first semiconductor region, and said second unit pixel includes: a second photoelectric conversion region which converts light into a signal charge and which has the first conductivity type; a second semiconductor region which is provided on the common well, which has a second conductivity type opposite to the first conductivity type, and which is separated from the second photoelectric conversion region by the element isolation region; and a second contact electrically connected to said second semiconductor region.