Patent ID: 8039378

Claim:
A method of manufacturing a semiconductor device, comprising the steps of: (a) preparing a semiconductor substrate made of single crystal silicon; (b) forming a semiconductor region over the semiconductor substrate; (c) forming an alloy film of nickel and platinum over the semiconductor substrate including the semiconductor region; (d) forming a platinum-added nickel silicide layer in a (PtNi)2Si phase by carrying out a first thermal treatment to cause the alloy film and the semiconductor region to react with each other; (e) after step (d), removing the unreacted alloy film over the platinum-added nickel silicide layer in the (PtNi)2Si phase over the semiconductor region; and (f) after step (e), carrying out a second thermal treatment with the thermal treatment temperature higher than that of the first thermal treatment to form the platinum-added nickel silicide layer in a PtNiSi phase, wherein a temperature rise rate of the first thermal treatment in step (d) is 30 to 250° C./s, wherein a temperature rise rate of the second thermal treatment in step (f) is 10° C./s or more, wherein a heater heating method is used for the first thermal treatment in step (d), and wherein the second thermal treatment in step (f) is a spike anneal process.