Patent ID: 9595557
Date: 2017-03-14
CPC Classifications: H01L

Claim:
1. A solid-state imaging device comprising: a semiconductor substrate; a first photoelectric converter in the semiconductor substrate; a second photoelectric converter in the semiconductor substrate; a third photoelectric converter in the semiconductor substrate; a first groove portion disposed between the first and second photoelectric converters, wherein the first groove portion extends in a depth direction in the semiconductor substrate, wherein the first groove portion includes a first portion of a first insulating film having a fixed charge and a first portion of a second insulating film, and wherein the first portion of the second insulating film is between the first portion of the first insulating film and a first void structure within the first groove portion; and a second groove portion disposed between the second and third photoelectric converters, wherein the second groove portion extends in the depth direction in the semiconductor substrate, wherein the second groove portion includes a second portion of the first insulating film and a second portion of the second insulating film, and wherein the second portion of the second insulating film is between the second portion of the first insulating film and a second void structure within the second groove portion, wherein,