Patent ID: 8691679

Claim:
A method of manufacturing a semiconductor device, comprising the steps of: preparing a silicon carbide substrate having a substrate surface; forming a gate insulating film to cover a part of said substrate surface, said step of forming a gate insulating film including the steps of forming an insulating film having a portion to serve as said gate insulating film, forming a resist film having an opening on said insulating film, and partially removing said insulating film to form said gate insulating film, by using said resist film as a mask; forming a contact electrode having Al atoms on said substrate surface, adjacent to and in contact with said gate insulating film, said step of forming a contact electrode including the steps of forming a Ti film on said silicon substrate provided with said gate insulating film, forming an Al film on said Ti film, and forming an Si film on said Al film; forming an alloy having Al atoms by annealing said contact electrode with laser beams, wherein the energy density of the laser beams per one pulse is not less than 0.3 J/cm 2 and not more than 1.5 J/cm 2 ; and forming a gate electrode covering a part of said gate insulating film.