Patent ID: 6642087
Filing Date: 2003-11-04
Classification: H01L

Abstract:
A method of manufacturing a solid state imaging device, comprising the steps of:forming a first insulating film on a semiconductor substrate of a first conductivity type; selectively forming an element isolation region for separating an element region in the semiconductor substrate; forming a readout gate electrode on the element region with the first insulating film interposed therebetween and a gate electrode on the element isolation region with the first insulating film interposed therebetween; forming a diffusion region of a second conductivity type on a surface of the element region at one end of the readout gate electrode; forming a signal storage region of the second conductivity type on the surface of the element region at other end of the readout gate electrode; forming a second insulating film on an entire surface of a resultant structure; removing the second insulating film and forming a silicide block layer covering at least part of the signal storage region; forming a surface shield region of the first conductivity type on a surface of the signal storage region; removing the first insulating film and the second insulating film from the diffusion region to expose a surface of the diffusion region; and forming a metal silicide layer on the exposed surface of the diffusion region.