Patent ID: 9443892
Filing Date: 2016-09-13
CPC Classification: H01L

Claim Text:
1. An image sensor comprising: a substrate including a first surface opposing a second surface and a plurality of pixel regions, the second surface to receive incident light; a photoelectric converter in each of the pixel regions; a gate electrode on the photoelectric converter; and a pixel isolation region isolating adjacent the pixel regions, wherein the pixel isolation region includes a first isolation layer coupled to a channel stop region, the first isolation layer includes a bottom surface adjacent to the second surface of the substrate and sidewalls extending toward the first surface of the substrate from the bottom surface of the first isolation layer, wherein the channel stop region is an impurity-doped region, and wherein the channel stop region is disposed between the bottom surface of the first isolation layer and the second surface of the substrate, and spaced apart from the sidewalls of the first isolation layer.