Patent ID: 8981263
Filing Date: 2015-03-17
Classification: H01J,H01L

Abstract:
1. An electrostatic chuck apparatus comprising: an electrostatic chuck section, one main surface of which is a placing surface for placing a plate-like specimen, and which is equipped with an internal electrode for electrostatic adsorption; an annular focus ring section which is provided so as to surround the electrostatic chuck section; a cooling base section which is provided on the other main surface side of the electrode chuck section to cool the electrostatic chuck section and the focus ring section, wherein the focus ring section includes an annular focus ring, an annular thermal conducting sheet which is adhered to a lower surface of the focus ring, an annular ceramic plate which is adhered to a lower surface of the thermal conducting sheet, a sheet-like heater portion which is provided between the ceramic plate and the cooling base section and is formed from a non-magnetic body, and an electrode section which supplies electricity to a heater section, and the heater section is fixed to the ceramic plate by a first insulating adhesive layer, is fixed to the cooling base section by a second insulating adhesive layer, and is insulated by the first insulating adhesive layer and the second insulating adhesive layer.