Patent ID: 6475844
Filing Date: 2002-11-05
Classification: H01L

Abstract:
A method of manufacturing a field effect transistor, comprising the steps of:(a) preparing a semiconductor substrate having a surface; (b) forming an insulating film on said surface of said semiconductor substrate; (c) forming a conductive material to cover said insulating film; (d) patterning said conductive material and said insulating film to form a MOS gate; (e) implanting an impurity into said surface of said semiconductor substrate around said MOS gate to form first and second diffusion regions; (f) forming a mask so as to expose a part of a top surface of said conductive material which is far from said second diffusion region and to cover a top surface of said second diffusion region; (g) forming a metal film over said surface of said semiconductor substrate using said mask; (h) heating said metal film to form a compound of said metal film and the part of the top surface of said conductive material which is far from said second diffusion region; (i) forming an interlayer insulating film to cover the surface of said semiconductor substrate; and (j) forming a capacitor connected to said second diffusion region via said interlayer insulating film.