Patent ID: 8409995
Filing Date: 2013-04-02
Classification: H01J,Y10T

Abstract:
1. A method for positioning a focus ring in a substrate processing apparatus that performs a plasma process on a substrate mounted on a mounting table in a processing chamber and surrounded by the focus ring, wherein the mounting table includes: a susceptor having a substrate mounting surface on which the substrate is mounted and a focus ring mounting surface on which the focus ring is mounted, and a plurality of positioning pins made of a material expandable in a diametric direction by heating, each positioning pin being inserted into a positioning hole formed in the focus ring mounting surface of the susceptor and into a positioning hole formed in the focus ring, and the method comprises: heating each positioning pin and allowing the positioning pin to be expanded so as to fill a gap within the positioning holes in a diametric direction and to be fitted into the positioning holes; and allowing centers of the positioning holes to be aligned on a substantially same line, and thus allowing the focus ring to be positioned at a preset position with respect to the susceptor.