Patent ID: 8920665
Filing Date: 2014-12-30
Classification: H01J,H01L

Abstract:
1. A plasma processing method in which a sample to be processed is mounted on the sample mounting surface of a sample stage disposed in a processing chamber contained in a vacuum vessel, and the processing chamber is depressurized to generate plasma for processing the sample, the sample mounting surface being constituted by a dielectric film in which at least one electrostatic chuck electrode is disposed beneath a central area of the sample mounting surface and another electrostatic chuck electrode is disposed in a peripheral region of the electrostatic chuck electrode disposed beneath the central area of the sample mounting surface, wherein a part of the sample is electro-statically chucked to the dielectric film by the electrostatic chucking electrode disposed beneath the central area of the sample mounting surface, the temperature of the sample is changed to a predetermined temperature; and thereafter the entire body of the sample is electro-statically chucked to the sample mounting surface, and the processing of the sample is initiated.