Patent ID: 8911559

Claim:
A method for pre-conditioning and stabilizing an etching chamber, the method comprising: providing the etching chamber initializing a cleaning process of the etching chamber by; introducing a first gas comprising only argon gas into the etching chamber, wherein the first gas is introduced having the etching chamber at a temperature that maintains the walls of the etching chamber at a temperature of approximately 50° C. to 80° C. until the stopping of introducing the first gas wherein introducing the first gas comprises utilizing a source power of approximately 100 to about 3000 Watts and bias power of approximately 0 Watts; after stopping introducing the first gas continuing the cleaning process by, introducing a second gas for a second time period, wherein the second gas is operable to clean the etching chamber and includes at least one of CF 4 and Ar and CF 4 and O 2 ; and transporting a first wafer into the etching chamber after the first period of time, wherein the first wafer undergoes an etching process.