Patent ID: 7483256

Claim:
An electrostatic chuck, comprising: a base plate; an electrode layer having flexibility, covering a surface of the base plate, having an electrode; and a power supply unit connected to the electrode layer, wherein the power supply unit includes a connection piece being disposed along a side surface of the base plate and including a wire, the wire being connected to the electrode of the electrode layer and extending from a side edge of the electrode layer, and an electrically conductive component which is electrically connected with the wire, and fixes the connection piece to the base plate, wherein the electrode layer includes a cushion layer deposited on the surface of the base plate, an electrode film layer covering the outer surface of the cushion layer and having the electrode, and a dielectric layer covering the outer surface of the electrode film layer, and wherein the connection piece includes an electrode film piece and a dielectric film, which are formed in such a manner as to extend from side edges of the electrode film layer and the dielectric layer, the electrode film piece having the wire connected to the electrode of the electrode film layer.