Patent ID: 7220672
Filing Date: 2007-05-22
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: forming a gate insulating film on a semiconductor substrate; forming a gate electrode on the gate insulating film; forming a source-drain diffusion layer in the semiconductor substrate; forming an insulating film on the gate electrode and on the source-drain diffusion layer; thinning the insulating film so as to expose the surface of the gate electrode with the source-drain diffusion layer kept covered with the insulating film; introducing atoms into a region around the surface of the gate electrode so as to make the upper portion of the gate electrode amorphous; removing the insulating film positioned on the source-drain diffusion layer; forming a film of a metal having a high melting point on the gate electrode and on the source-drain diffusion layer; and converting the film of the high melting point metal into a silicide film to form a silicide film selectively on the gate electrode and on the source-drain diffusion layer.