| 摘要 |
PURPOSE:To improve the characteristics of resolution by forming a light-shielding film made of a metal, etc. into a region with the same conduction type as a substrate. CONSTITUTION:Light projected to storage sections 1a, 2a...na is converted in photoelectric shape, and charges spread only by length (f) in the direction of a picture element. The metallic films 1d, 2d...(n+1)d are formed in boundary regions among picture elements, and the projection of light is prevented in the regions. The surface regions 1b, 2b...(n+1)b with the same conduction type as the substrate 11 isolate signal charges in adjacent picture elements. Accordingly, the capability of isolation can be improved more when the sections are brought to concentration higher than the substrate. |
