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US08284538B2 Electrostatic chuck device 有权
静电吸盘装置

Electrostatic chuck device
摘要:
An electrostatic chuck device includes an electrostatic chuck section, a metal base section, and a dielectric plate. The electrostatic chuck section has a substrate, a main surface of which serves as a mounting surface for a plate-like sample, an electrostatic-adsorption inner electrode built in the substrate, and a power supply terminal for applying a DC voltage to the electrostatic-adsorption inner electrode. Here, a dielectric plate is fixed to a concave portion formed in the metal base section. The dielectric plate and the electrostatic chuck section are adhesively bonded to each other with an insulating adhesive bonding layer interposed therebetween. The dielectric plate and the concave portion are adhesively bonded to each other with a conductive adhesive bonding layer interposed therebetween, the volume resistivity of which is 1.0×10−2 Ωcm or less.
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