Patent ID: 8317971
Filing Date: 2012-11-27
Classification: G11B,H01J

Abstract:
1. A plasma processing apparatus comprising: a discharge window made of a dielectric material; a discharge chamber which is grounded and includes an opening formed at one end thereof and said discharge window provided at the other end thereof facing the opening; a gas supply system which supplies a gas into said discharge chamber; a high-frequency power application mechanism which applies a high-frequency power to the gas to generate a plasma inside said discharge chamber; a substrate holder which can hold a substrate while facing said discharge window on an outer side of said discharge chamber; a shielding member which partially shields the plasma that impinges on the substrate; and a supporting member which supports said shielding member, wherein said supporting member supports said shielding member at a position which is farther from a portion at which said shielding member faces the substrate, and wherein said supporting member is grounded and fixed at a position which is different from a position of said discharge window.