Patent ID: 9406816
Filing Date: 2016-08-02
CPC Classification: H01L

Claim Text:
1. A solid-state imaging apparatus comprising: a first conductivity type well region; a photoelectric conversion unit; an element isolation unit that extends into the first conductivity type well region; a first conductivity type first region between the element isolation unit and the photoelectric conversion unit, wherein the first conductivity type first region formed on a vertical side wall of the element isolation unit; and a diffusion prevention unit including a first conductivity type second region under the element isolation unit, as viewed in a direction in which the element isolation unit extends into the first conductivity type well region, wherein, a depth of a bottom surface of the first conductivity type second region, as viewed in the direction in which the element isolation unit extends into the first conductivity type well region, is shallower than the entirety of a bottom surface of the first conductivity type first region on the vertical side wall of the element isolation unit.