Patent ID: 6706155
Filing Date: 2004-03-16
Classification: H01J

Abstract:
A sputtering apparatus comprising:a vacuum chamber a target positioned within the vacuum chamber; a substrate table located within the vacuum chamber at a position facing the target; an anode electrode surrounding the periphery of a portion, on the target side, of flying space where sputtering particles flying off from the target are flying, of space between the target and the substrate table, the anode electrode having, at an outer periphery of one end thereof, a flange; an earth electrode encompassing a portion, of the remaining portion of the flying space, between the anode electrode and the substrate table; and a conductive terminal, electrically insulated from the vacuum chamber, projects towards an inside portion of the vacuum chamber, the flange of the anode electrode being mounted on the conductive terminal, wherein the earth electrode and the anode electrode are electrically insulated from each other and are subjected to the application of different voltages; and the vacuum chamber and the earth electrode are connected to earth potential, and a positive voltage is applied to the anode electrode.