Patent ID: 6223685
Filing Date: 2001-05-01
Classification: C23C,H01J,H01L,Y10S

Abstract:
A substrate processing system comprisinga housing that forms a vacuum chamber;a substrate holder, located within said housing, configured to support a substrate;a gas delivery system configured to introduce a process gas into said vacuum chamber;a temperature control system configured to control the temperature within said vacuum chamber;a pressure control system configured to control the pressure within said vacuum chamber;a plasma generation system configured to form a plasma from said process gas;a controller configured to control said gas delivery system, said temperature control system and said pressure control 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:instructions for controlling said gas delivery system to introduce an etchant gas comprising fluorine into said vacuum chamber to remove material deposited on at least one interior surface of said chamber by reacting said material with said etchant gas wherein said reacting leaves a residue comprising fluorine on at least a portion of said at least one interior surface;instructions for controlling said gas delivery system to, thereafter, introduce a process gas comprising silicon and oxygen into said vacuum chamber; andinstructions for controlling said plasma generation system, said temperature control system and said pressure control system to form said plasma from said process gas to deposit a silicon oxide seasoning layer over said at least one interior surface under deposition conditions such that conditions of said depositing step are selected so that said deposited silicon oxide layer film exhibits substantially no fluorine outgassing during thermal desorbtion spectra testing when heated up to 600.degree. C. after being deposited over a test substrate placed in the chamber during said depositing step.