Patent ID: 6100170
Filing Date: 2000-08-08
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising:a polysilicon film forming step of forming a polysilicon film to be used as a gate electrode on a semiconductor substrate of silicon;an insulating thin film depositing step of depositing an insulating thin film on said semiconductor substrate on which said polysilicon film is formed;an ion implanting step of forming an amorphous layer in a surface portion of said polysilicon film by implanting impurity ions into said polysilicon film through said insulating thin film;an insulating thin film removing step of selectively removing said insulating thin film so as to remove a first region of said insulating thin film existing on said polysilicon film to expose said amorphous layer and to remain a second region of said insulating thin film existing in a non-silicide region over said semiconductor substrate, in which no silicide layer is to be formed; anda silicide layer forming step of forming a metal silicide layer on the surface of said polysilicon film by depositing a metal film on said amorphous layer and causing a reaction between said amorphous layer and said metal film through annealing.