Patent ID: 7708834
Filing Date: 2010-05-04
Classification: F16B,H01J,Y10T

Abstract:
1. A plasma processing apparatus including a processing chamber in which a wear environment is formed, the apparatus comprising: a component disposed in the processing chamber; and a bolt that attaches the component to a base portion formed of a brittle member, wherein the bolt includes a head including a wear resistant material, a body which includes a resin having elasticity or plasticity and has a first male screw portion, and a placed member which is disposed between the head and the body and including a wear resistant resin having elasticity or plasticity; wherein the body further includes a second male screw portion disposed along a central axis of the body and the head includes a female threaded screw portion which the second male screw portion is driven into, a diameter of the second male screw portion being smaller than that of the first male screw portion; wherein the female threaded screw portion is disposed inside a blind hole in the head; wherein the bolt attaches the component to the base portion via a threaded female blind hole disposed in the base portion; wherein the head is disposed in a female blind hole in the component.