Patent ID: 7619179
Filing Date: 2009-11-17
Classification: H01J

Abstract:
1. An electrode for generating a plasma, disposed to face a surface of a substrate to perform a plasma processing on the surface of the substrate, the electrode comprising: a metal-based composite material formed by impregnating a metal into a base member made of a porous ceramic, and having a joint surface at least facing toward the entire surface of the substrate; and a conductive plate made of a plasma-resistant material melt-bonded by a metal to the joint surface of the metal-based composite material, wherein gas discharge openings for discharging a processing gas into a processing atmosphere for the substrate are implemented by sleeves provided through the metal-based composite material and the conductive plate, and boundaries between the metal-based composite material, the sleeves and the conductive plate are melt-bonded by the metal.