Patent ID: 10475688

Abstract:
An electrostatic chuck part of an electrostatic chuck device has an electrostatic chuck part inner peripheral surface surrounding an opening of a chuck part through-hole, and an electrostatic chuck part outer peripheral surface surrounding the electrostatic chuck part inner peripheral surface. An insulator has an insulator main body in which an insulator through-hole having an opening on the electrostatic chuck part side is formed, an insulator inner end face, and an insulator outer end face which faces the electrostatic chuck part outer peripheral surface. The insulator inner end face and the electrostatic chuck part inner peripheral surface are in contact with each other, or an adhesion layer or a plasma-resistant adhesive layer extends in a gap between the insulator inner end face and the electrostatic chuck part inner peripheral surface. The plasma-resistant adhesive layer is formed between the electrostatic chuck part outer peripheral surface and the insulator outer end face.