Patent ID: 9728564
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. An imaging device, comprising: a semiconductor substrate; a plurality of photoelectric conversion elements in the semiconductor substrate; transistor elements including a reset transistor, an amplification transistor, and a selection transistor, wherein the plurality of photoelectric conversion elements share use of the reset transistor, the amplification transistor, and the selection transistor; a sidewall isolation film including a first portion and a second portion, wherein a gate of at least one of the reset transistor, the amplification transistor, and the selection transistor is disposed between the first portion and the second portion in a cross-section view; and an element isolation region including a first region and a second region, wherein the first region and the second region are separated by an active region of the semiconductor substrate such that the first region is not in contact with the second region in the cross-section view, wherein at least a part of the first portion is located over the first region, and at least a part of the second portion is located over a region of the semiconductor substrate disposed between the first region and the second region, in the cross-section view.