Patent ID: 7378691

Claim:
A solid-state image sensor with a plurality of pixels, wherein the solid-state sensor comprises: a left pixel comprising: a left pixel photoelectric conversion portion provided on a prescribed region of the main surface of a substrate, a left pixel first gate electrode, a left pixel second gate electrode; a right pixel comprising: a right pixel photoelectric conversion portion provided on a prescribed region of the main surface of the substrate, a right pixel first gate electrode, and a right pixel second gate electrode; wherein a small gap is provided between the left pixel second gate electrode and the right pixel first gate electrode; a first conductivity type transfer channel region is formed over the main surface of the substrate, and located between the photoelectric conversion portion of the left pixel and the photoelectric conversion portion of the right pixel; wherein the first conductivity type transfer channel region has a first quantity of a second conductivity type impurity in a non-gap space, wherein the non-gap space includes a portion of the first conductivity type transfer channel region located under the left pixel second gate electrode and includes a portion of the first conductivity type transfer channel region located under the right pixel first gate electrode; wherein the first conductivity type transfer channel region has a second quantity of a second conductivity type impurity in a gap space, where in the gap space includes a portion of the first conductivity type transfer channel region located under the small gap provided between the left pixel second gate electrode and the right pixel first gate electrode; and wherein the second quantity is larger than the first quantity.