Patent ID: 9748296
Date: 2017-08-29
CPC Classifications: H01L

Claim:
1. An imaging device, comprising: a substrate, comprising: a fixed charge film disposed, at least in part, in the first groove section and the second groove section; an intermediate layer disposed, at least in part, on the fixed charge film; a first light-shielding film that contacts a first part of the intermediate layer such that the first light-shielding film is disposed over a top most surface of the intermediate layer at the first groove section; a second light-shielding film that contacts a second part of the intermediate layer such that the second light-shielding film is disposed over the top most surface of the intermediate layer at the second groove section; and a planarizing film disposed over the intermediate layer and surrounding the first light-shielding film and the second light-shielding film, wherein, the photoelectric conversion section is disposed between the first groove section and the second groove section, a width of the first portion is larger than a width of the second portion in a cross-section view, a width of the third portion is larger than a width of the fourth portion in the cross-section view, the fixed charge film extends from the first groove section to the second groove section along a first side of the substrate; and at least a portion of the first and the second light-shielding films extend below a bottom surface of the planarizing film.