Patent ID: 6291029
Filing Date: 2001-09-18
Classification: C23C,H01J

Abstract:
A plasma processing method performed in a plasma processing apparatus comprising:a vessel having a member for reducing high frequency distribution in a portion thereof, capable of housing a film formation substrate or an object to be processed, and capable of being evacuated;gas supply means for supplying a predetermined gas into the vessel;a cathode electrode provided outside the vessel and arranged in a position where the cathode electrode faces the object to be processed housed in the vessel, an empty space being provided between the member for reducing high frequency distribution and the cathode electrode; andhigh frequency power supply means for supplying high frequency power of 30 MHz to 300 MHz to the cathode electrode, the method comprising the steps of:supplying a predetermined gas into the vessel;supplying high frequency power of 30 MHz to 300 MHz to the cathode electrode to generate a plasma between the member for reducing high frequency distribution and the object to be processed in the vessel, the member having a thickness of 5 mm or more, thereby performing plasma processing for the object to be processed.