Patent ID: 7619870
Filing Date: 2009-11-17
Classification: H01L

Abstract:
1. An electrostatic chuck device comprising: an electrostatic chuck section including a substrate, which has a main surface serving as a mounting surface on which a plate-like sample is mounted and an electrostatic-adsorption inner electrode built therein, and a power supply terminal for applying a DC voltage to the electrostatic-adsorption inner electrode; and a metal base section that is fixed to the other main surface of the electrostatic chuck section so as to be incorporated into a body and that serves as a high frequency generating electrode, wherein a concave portion is formed in the main surface of the metal base section facing the electrostatic chuck section and a dielectric plate is fixed to the concave portion, wherein the dielectric plate and the electrostatic chuck section are adhesively bonded to each other with an insulating adhesive bonding layer interposed therebetween, the dielectric constant of which is smaller than that of any one of the dielectric plate and the substrate, and wherein the dielectric plate and the concave portion are adhesively bonded to each other with an insulating adhesive bonding layer interposed therebetween, the dielectric constant of which is smaller than that of any one of the dielectric plate and the substrate.