Patent ID: 7514314

Claim:
A method of manufacturing a semiconductor device comprising: (A) forming a gate electrode of a transistor on a substrate, wherein a top layer of said gate electrode is a first metal film; (B) blanket depositing an interlayer insulating film; (C) forming a first contact hole contacting said gate electrode and a second contact hole contacting a surface of said substrate by etching said interlayer insulating film using a mask; (D) after said (C) process, siliciding an exposed surface of said first metal film to form a first silicide at a bottom of said first contact hole; (E) after said (D) process, blanket depositing a second metal film; (F) after said (E) process, forming a second silicide at a bottom of said second contact hole through a silicide reaction between said second metal film and said surface of said substrate; and (G) after said (F) process, removing said second metal film that is unreacted.