Patent ID: 7927473
Filing Date: 2011-04-19
Classification: C23C,G11B,H01L

Abstract:
1. A substrate holder for supporting an insulating substrate, comprising: a conductive substrate holder main body having an opening; a plurality of first support members formed to protrude inside the opening from an inner periphery of the opening, and including a clamping member which supports one end portion of the insulating substrate; and a second support member including a clamping member which supports the other end portion of the insulating substrate, and configured to move to protrude inside the opening or retract from inside the opening, wherein at least one of said first support members is a bias voltage application support member configured to apply a bias voltage to the insulating substrate, when supporting the insulating substrate using the clamping member of said second support member, said second support member protrudes inside the opening such that the clamping member of said bias voltage application support member separates from the insulating substrate, and when supporting the insulating substrate using the clamping member of said bias voltage application support member, said second support member retracts from a position where the other end portion of the insulating substrate is supported by the clamping member of said second support member to a position where the insulating substrate is supported by the clamping member of said bias voltage application support member.