Patent ID: 8110856

Claim:
A solid-state imaging device comprising: a photo sensor portion in a silicon layer; an adhesive layer carried on said silicon layer; and a wiring portion on said silicon layer, wherein, the photo sensor portion includes, in cross section, (i) a rectangular first region having a first conductivity type at a first side of the silicon layer, (ii) a second region having a second conductivity type at a second side of the silicon layer, and (iii) a third region having the first conductivity type and which is between and in contact with the second region and the first region, in the cross section, the first region of the first conductivity type is larger in cross section than the third region, in the cross section, the third region is wider and larger than the second region, the second region is within the third region, the third region has a portion adjacent to the second side of the silicon layer, and the wiring portion includes wiring layers having cross sections aligned in a thickness direction, the wiring layers overlapping the first region in a thickness direction.