Patent ID: 8739732
Filing Date: 2014-06-03
Classification: C23C,H01J

Abstract:
1. A plasma treatment container internal member disposed in a plasma treatment container for performing process on an object to be treated by plasma, comprising: an anodic oxide coating formed on a surface of a base material of the plasma treatment container internal member; and a thermally sprayed film formed on the anodic oxide coating and adhering to the anodic oxide coating with an adhesion greater than 40 MPa, said anodic oxide coating including a surface region in contact with the thermally sprayed film and an interior region having a porosity less than the surface region, wherein the anodic oxide coating is formed by an anodic oxidation treatment using plasma discharge to increase a porosity at a surface of the anodic oxide coating and the anodic oxidation treatment includes the steps of immersing the base material in an alkaline organic electrolyte, and performing the plasma discharge in the alkaline organic electrolyte.