Patent ID: 6713127
Filing Date: 2004-03-30
Classification: C23C

Abstract:
A method of forming a silicon oxynitride film including:placing a substrate in a deposition chamber and obtaining a desired process temperature and a desired process pressure; flowing an oxidation source gas into said deposition chamber at a first desired flow rate for a first predetermined amount of time after said desired process temperature and said desired process pressure are obtained; diverting a silicon source gas away from said deposition chamber, said diverting having said silicon source gas flow at a second desired flow rate and said diverting occurring before forming said silicon oxynitride film; stopping said diverting and flowing said silicon source gas at said second desired flow rate into said deposition chamber; decomposing said silicon source gas and said oxidation source gas in said deposition chamber using a thermal energy source; forming said silicon oxynitride film above said substrate wherein said desired process pressure is between of 50 to 350 Torr, wherein said desired process temperature is between 400Â° to 800Â° C., and wherein a flow ratio for said silicon source gas and said oxidation source gas is between 1:50 to 1:10000; wherein said silicon source gas is mixed with a nitridation source gas; terminating said silicon source gas into said deposition chamber while maintaining said flowing of said oxidation source gas in said deposition chamber for a second predetermined amount of time; and purging said deposition chamber with a cleaning gas.