Patent ID: 9337230
Filing Date: 2016-05-10
CPC Classification: H01L,H04N

Claim Text:
1. A solid-state imaging device having a backside illuminated structure, comprising: a pixel region in which pixels each having a photoelectric conversion portion and a plurality of pixel transistors are arranged in a two-dimensional matrix; an element isolation region isolating the pixels which is provided in the pixel region and which includes a semiconductor layer provided in a trench having at least one of an insulting film and a void therein; and a light-receiving surface at a rear surface side of a semiconductor substrate which is opposite to a multilayer wiring layer, wherein the semiconductor layer in the element isolation region has an opposite conductivity type to that of a charge storage region which forms the photoelectric conversion portion, the semiconductor layer has the void therein, the void is exposed to a rear surface of the semiconductor substrate, and the void exposed to the rear surface of the semiconductor substrate is filled with the insulting film.