Patent ID: 6699374
Filing Date: 2004-03-02
Classification: C23C,H01J

Abstract:
Apparatus for cathodic magnetron sputtering of a temperature-sensitive substrate comprising:a vacuum chamber having a work-supporting station; a magnetron sputtering target in sputtering opposition to said work-supporting station, said apparatus producing a magnetic field serving to contain, in an oval pattern, a gas plasma cloud, the gas plasma cloud serving to eject target material toward said work-supporting station; at least one anode carried adjacent the oval pattern and sufficiently out of said magnetic field so as to have no significant effect upon said magnetic field or sputtering uniformity, said at least one anode being so positioned with respect to said magnetron sputtering target as to collect electrons that otherwise would impinge upon and heat a substrate supported by said work-supporting station; and movable supports for adjusting the position of said at least one anode with respect to said magnetron sputtering target.