Patent ID: 7981795
Filing Date: 2011-07-19
Classification: H01L

Abstract:
1. A semiconductor device manufacturing method for forming a MISFET, comprising: forming a metal film containing platinum by depositing a metal on a source/drain diffusion layer primarily made of silicon formed on a semiconductor substrate and on a device isolation insulating film formed on the semiconductor substrate adjacent to the source/drain diffusion layer; forming a silicide film by silicidation of an upper part of the source/drain diffusion layer by causing a reaction between silicon in the source/drain diffusion layer and the metal on the source/drain diffusion layer by a first heating processing at a first heating temperature; forming a metal oxide film by an oxidation processing to oxidize selectively at least a surface of the metal film on the device isolation insulating film; increasing a concentration of silicon in the silicide film by a second heating processing at a second heating temperature higher than the first heating temperature; and selectively removing the metal oxide film and an unreacted part of the metal film on the device isolation insulating film.