Patent ID: 6136139
Filing Date: 2000-10-24
Classification: H01J,H05H

Abstract:
A plasma processing apparatus comprising:a processing chamber having an outer wall;a susceptor configured to hold a substrate to be processed in the processing chamber;a spiral antenna being arranged to substantially face the substrate to be processed held by the susceptor;a dielectric plate interposed between the spiral antenna and the substrate to be processed held by the susceptor;a high frequency power supply electrically connected to a central area of the spiral antenna for supplying a high frequency power to the spiral antenna from the central area thereof so as to generate plasma in the processing chamber for processing the substrate to be processed; anda controller configured to control the high frequency power supply,said spiral antenna including at least two spiral antenna members, each having an inner end portion and an outer end portion, the inner end portion being positioned on the central area and at least one inner end portion being electrically connected to the high frequency power supply.