Patent ID: 6921720
Filing Date: 2005-07-26
Classification: H01J,H01L

Abstract:
1. A plasma treating method for carrying out a plasma treatment in such a state that a semiconductor substrate having an insulating layer on a surface is held on a mounting surface of a substrate mounting portion by electrostatic adsorption, the method comprising the steps of: setting at least a part of the mounting surface to be a conductor and causing the conductor to come in contact with the insulating layer with an insulating layer side of the semiconductor substrate turned toward the mounting surface of the substrate mounting portion, thereby carrying out mounting; and generating a plasma with a DC voltage applied to the substrate mounting portion, thereby carrying out the plasma treatment over the semiconductor substrate, wherein the semiconductor substrate is electrostatically adsorbed into the mounting surface by a coulomb force generated between an electric charge stored in the semiconductor substrate and an electric charge stored in the mounting surface by utilizing the insulating layer as a dielectric for the electrostatic adsorption at the step of carrying out the plasma treatment; wherein the insulating layer is a resin tape stuck to a surface of the semiconductor substrate.