Patent ID: 9437651
Filing Date: 2016-09-06
CPC Classification: H01L

Claim Text:
1. A method of manufacturing an imaging device including a pixel circuit unit and a peripheral circuit unit, the method comprising: forming a first insulator film that covers a first semiconductor region positioned in the pixel circuit unit, a second semiconductor region positioned in the peripheral circuit unit, and a third semiconductor region positioned in the peripheral circuit unit; removing one portion of the first insulator film, the one portion of the first insulator film being positioned on the second semiconductor region, and another portion of the first insulator film, the another portion of the first insulator film being positioned on the third semiconductor region, while remaining a first portion of the first insulator film, the first portion being positioned on the first semiconductor region; forming a second insulator film that covers the first semiconductor region, the second semiconductor region, and the third semiconductor region; removing one portion of the second insulator film, the one portion of the second insulator film being positioned on the first portion, and another portion of the second insulator film, the another portion of the second insulator film being positioned on the second semiconductor region, while remaining a second portion of the second insulator film, the second portion being positioned on the third semiconductor region; forming a metal film that covers the first portion, the second semiconductor region, and the second portion; causing the metal film and the second semiconductor region to react with each other to form a metal compound layer; and forming a third insulator film that covers the first portion, the metal compound layer, and the second portion, and forming a conductor member that penetrates the third insulator film and comes in contact with the metal compound layer.