Electrostatic chuck device having focus ring
Abstract:
An electrostatic chuck device comprising: a placing table having a placing surface on which a plate-shaped sample is placed, an electrostatic attraction electrode, which is located on a lower side of the placing table in such a manner that the electrode is located on a surface side opposite to the placing surface of the placing table, a base part on which at least the placing table and the electrostatic attraction electrode are mounted, a focus ring which surrounds the placing table wherein the focus ring is a continuous ring or is divided into two or more portions, and a lift pin which is movable in an up-down direction and raises the entirety of or at least a part of the focus ring from the base part.
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