Patent ID: 8101513

Claim:
A method of manufacturing a semiconductor device comprising: (a) forming a recess through an insulating film formed over a semiconductor substrate using a resist pattern as a mask; (a1) after forming the recess, removing the resist pattern; (b) after removing the resist pattern, raising a temperature of the substrate to 300° C. or higher at a temperature rising rate of 10° C./s or slower to execute a first degassing process in a chamber, inside of which is evacuated to be a vacuum atmosphere; (b1) after the first degassing process, removing an oxide film formed over a bottom of the recess in reducing gas or in plasma of reducing gas; (e) after removing the oxide film, raising a temperature of the substrate at a temperature rising rate of 10° C./s or slower to execute a second degassing process in the chamber, inside of which is evacuated to be a vacuum atmosphere; (c) after the second degassing process, depositing a conductive film on the insulating film, the conductive film being embedded in the recess; and (d) polishing the deposited conductive film until the insulating film is exposed, wherein the step (e) executes the second degassing process at a temperature lower than a temperature for the first degassing process at the step (b).