Patent ID: 6422172
Filing Date: 2002-07-23
Classification: C23C,H01J

Abstract:
A plasma processing apparatus for plasma processing of a substrate, comprising:a plasma processing chamber; means for supplying a plasma processing gas into said plasma processing chamber; means for evacuating an interior of said plasma processing chamber; means for generating a plasma into said plasma processing chamber; means for processing a substrate to be processed in said plasma processing chamber by exposing said substrate to the plasma which is generated by said plasma generating means; wherein said plasma generating means includes at least one first conductive component having a high-frequency electric power applied thereto and at least one second conductive component without the high-frequency electric power being applied thereto, means for insulating said at least one first conductive component with respect to the at least one second conductive component so as to enable generation of a high-frequency electric field between said at least one first conductive component and said at least one second conductive component and for radiating electromagnetic waves according to said high-frequency electric field into said plasma processing chamber; wherein said at least one second conductive component is a grounded conductive component; and wherein said at least one first conductive component includes at least two concentric ring-shaped members having said high-frequency electric power applied thereto and said at least one second conductive component includes at least one concentric ring-shaped member which is grounded and disposed between said at least two first conductive components.