Patent ID: 6750110
Filing Date: 2004-06-15
Classification: C23C,H01L

Abstract:
A method for depositing a platinum group metal film on a substrate, comprising the steps of:flowing a platinum group metal precursor in gaseous form into a CVD deposition chamber at a flow rate of from about 50 to about 500 sccm in the presence of an oxygen and nitrous oxide mixture, said mixture comprising about 5% to about 95% by volume oxygen, wherein said mixture has a combined flow rate in the range of from about 1500 sccm to about 2500 sccm and a ratio of said oxygen to nitrous oxide in said mixture is selected so as to control the roughness of said platinum group metal film, and said platinum group metal film is deposited at a predetermined temperature and at a pressure of from about 10 to about 1000 Torr in said CVD deposition chamber.