Patent ID: 6399484
Filing Date: 2002-06-04
Classification: C23C,H01L

Abstract:
A semiconductor device fabricating method comprising:a preparatory process that brings a first source gas containing tungsten atoms into contact with a workpiece and not bringing a second source gas containing nitrogen atoms into contact with the workpiece, wherein the preparatory process comprises the steps of: adjusting process pressure at which the workpiece is processed to a value in the range of 0.1 to 20 torr; heating the workpiece at a temperature in the range of 300 to 500Â° C.; and adjusting flow rate of the first source gas to a value in the range of 0.5 to 10 sccm or adjusting partial pressure of the first source gas to a pressure in the range of 5Ã—10âˆ’4 to 10 torr; and a film forming process that forms a tungsten nitride film on the workpiece by using the first source gas and the second source gas so as to fabricate a semiconductor device.