Patent ID: 6767796
Filing Date: 2004-07-27
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, comprising:forming an insulating film on a silicide layer formed at the surface of a silicon semiconductor substrate; etching the insulating film to form a contact hole in which the silicide layer is exposed; forming a metal nitride film on the bottom and side wall of the contact hole; carrying out a first heating process at 600Â° C. or lower on the substrate; carrying out, during the first heating process, a second heating process for 10 msec or shorter with light whose wavelength is shorter than a light absorption edge of silicon; forming a contact conductor in the contact hole after the second heating process; and forming, on the insulating film, wiring that is electrically connected to the substrate through the contact conductor; wherein during the second heating process the silicide layer is converted from a mono-silicide to a di-silicide layer.