Patent ID: 7101466
Filing Date: 2006-09-05
Classification: C23C,H01J

Abstract:
1. A sweeping linear magnetron comprising a cathode backing plate, said cathode backing plate having an exterior surface adapted to be attached to a vacuum chamber wherein a plasma deposition process will occur; a drive housing attached to said exterior surface of said cathode backing plate, said drive housing positioned over a cut-out in the surface of said cathode backing plate; a motor held in said drive housing, said motor driving a yoke, said yoke positioned within said cut-out in said surface of said cathode backing plate; a magnet pack, said magnet pack attached to said yoke, said magnet pack having a first magnet mounting plate and a second magnet mounting plate that goes over the first magnet mounting plate and a plurality of magnets positioned between said first magnet mounting plate and said second magnet mounting plate, said magnet mounting plates have at least one side edge and at least one end edge, said magnet pack having between the first magnet mounting plate and the second magnet mounting plate one or more center magnets having a first end and a second end and a body between said first end and said second end and one or more side magnets having a first end and a second end and a body between said first end and said second end, said side magnets being positioned along said side edge and one or more end magnets positioned along said end edge, the bodies of said center magnets and said side magnets generally positioned in the same alignment so that their ends do not contact each other and one or more end magnets on the magnet mounting plates in an area of the magnet mounting plates that extends past the ends of the center and side magnet; and wherein one or more filler magnets are positioned between the body of the center magnets and the body of the side magnets.