Patent ID: 8471351
Filing Date: 2013-06-25
Classification: H01L

Abstract:
1. A solid state imaging device comprising: a plurality of pixels arranged in an array pattern, wherein each of the pixels includes: an insulating isolation part which electrically isolates the photoelectric conversion elements adjacent to each other, and electrically isolates the photoelectric conversion element and the amplifier transistor, wherein the insulating isolation part constitutes at least a first region between the photoelectric conversion elements where the amplifier transistor is not arranged, and a second region between the photoelectric conversion elements where the amplifier transistor is arranged, a second conductivity type isolation diffusion layer is formed around the insulating isolation part, the isolation diffusion layer is formed with a first isolation diffusion layer and a second isolation diffusion layer, at least a portion of the second isolation diffusion layer is formed directly below the first isolation diffusion layer, at least a portion of the second isolation diffusion layer formed below the insulating isolation part constituting the first region is wider than the first isolation diffusion layer, and a source/drain region of the amplifier transistor is disposed in the first isolation diffusion layer so that at least a portion of the first isolation diffusion layer is formed directly below the source/drain region.