Patent ID: 8878267

Claim:
A solid-state imaging device comprising: a plurality of pixels, each including a photoelectric conversion unit and a amplification transistor configured to amplify a signal generated by the photoelectric conversion unit; a first substrate on which the plurality of the photoelectric conversion units are disposed; and a second substrate on which the plurality of the amplification transistors are disposed, wherein a well of a first conductivity type provided with a source region and a drain region of the amplification transistor is isolated from another well of a first conductivity type which is disposed adjacent to the well in at least one direction, the another well is provided with a source region and a drain region of another amplification transistor, wherein, between the adjacent wells of the first conductivity type, by disposing a semiconductor region of a second conductivity type, the wells of the first conductivity type are isolated from each other, and wherein the semiconductor region of the second conductivity type covers a surface which is opposite to a surface on which a gate of the amplification transistor of the two wells of the first conductivity type is provided and extends to a region between the two wells of the first conductivity type.