Patent ID: 6068729
Filing Date: 2000-05-30
Classification: B08B,C23C,H01J,Y10S

Abstract:
A substrate processing system comprising:a housing defining a chamber;a gas distribution system adapted to introduce one or more gases into said chamber;a plasma generation system operatively coupled to form a plasma within said chamber;a controller for controlling said gas distribution system and said plasma generation system; anda memory coupled to said controller comprising a computer readable medium having a computer readable program embodied therein for directing operation of said substrate processing system, said computer readable program comprising:computer instructions that control said gas distribution system to flow a first cleaning process gas into said chamber, said first cleaning process gas comprising ozone and a fluorine-containing compound;computer instructions that control said plasma generation system to form a plasma from said first cleaning process gas and maintain said plasma for a first time period;computer instructions that control said gas distribution system to flow, after flowing said first cleaning process gas, a second cleaning process gas into said chamber, said second cleaning process gas comprising a compound selected from the group consisting of perfluorocarbons, fluorine, nitrogen, and combinations of fluorine and nitrogen; andcomputer instructions that control said plasma generation system to form a plasma from said second cleaning process gas and maintain said plasma for a second time period.