Patents by Inventor James H. Tsung

James H. Tsung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6852202
    Abstract: A small unbalanced magnet assembly is scanned in a retrograde planetary or epicyclic path about the back of a target being plasma sputtered including an orbital rotation about the center axis of the target and a planetary rotation about another axis rotating about the target center axis. The magnet assembly may pass through the target center, thus allowing full target coverage. A geared planetary mechanism may include a rotating drive plate, a fixed center gear, and an idler and a follower gear rotatably supported in the drive plate supporting a cantilevered magnet assembly on the side of the drive plate facing the target. The erosion profile may be controlled by varying the rotation rate through the rotation cycle or by modulating the target power. A second planetary stage may be added or non-circular gears be used. Auxiliary electromagnetic coils may create a focusing magnetic field.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: February 8, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Michael Andrew Miller, James H. Tsung, Daniel C. Lubben, Ilyoung Richard Hong, Peijun Ding
  • Publication number: 20030217914
    Abstract: A small unbalanced magnet assembly is scanned in a retrograde planetary or epicyclic path about the back of a target being plasma sputtered including an orbital rotation about the center axis of the target and a planetary rotation about another axis rotating about the target center axis. The magnet assembly may pass through the target center, thus allowing full target coverage. A geared planetary mechanism may include a rotating drive plate, a fixed center gear, and an idler and a follower gear rotatably supported in the drive plate supporting a cantilevered magnet assembly on the side of the drive plate facing the target. The erosion profile may be controlled by varying the rotation rate through the rotation cycle or by modulating the target power. A second planetary stage may be added or non-circular gears be used. Auxiliary electromagnetic coils may create a focusing magnetic field.
    Type: Application
    Filed: April 17, 2003
    Publication date: November 27, 2003
    Applicant: Applied Materials, Inc.
    Inventors: Michael Andrew Miller, James H. Tsung, Daniel C. Lubben, Ilyoung Richard Hong, Peijun Ding
  • Patent number: 6580057
    Abstract: The present invention generally provides a substrate processing system having a thermally conductive and electrically insulative member coupled to a heated member that provides for heat dissipation from the heated member. In a preferred embodiment, the present invention provides for heat dissipation through thermal conductance of an electrically insulated coil in an IMP reaction chamber.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: June 17, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Richard Hong, James H. Tsung, Gunnar Vatvedt, Peijun Ding, Arvind Sundarrajan
  • Publication number: 20020046990
    Abstract: The present invention generally provides a substrate processing system having a thermally conductive and electrically insulative member coupled to a heated member that provides for heat dissipation from the heated member. In a preferred embodiment, the present invention provides for heat dissipation through thermal conductance of an electrically insulated coil in an IMP reaction chamber.
    Type: Application
    Filed: December 10, 2001
    Publication date: April 25, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Richard Hong, James H. Tsung, Gunnar Vatvedt, Peijun Ding, Arvind Sundarrajan
  • Patent number: 6376807
    Abstract: The present invention generally provides a substrate processing system having a thermally conductive and electrically insulative member coupled to a heated member that provides for heat dissipation from the heated member. In a preferred embodiment, the present invention provides for heat dissipation through thermal conductance of an electrically insulated coil in an IMP reaction chamber.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: April 23, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Richard Hong, James H. Tsung, Gunnar Vatvedt, Peijun Ding, Arvind Sundarrajan
  • Patent number: 6235163
    Abstract: An improved system for performing plasma enhanced PVD of copper, aluminum, tungsten or other metallic material is disclosed. The system has markedly improved performance in the critical area of unwanted in-film particle deposits. The improved performance is provided by lowering the operating temperature of the RF coil used in the plasma enhanced PVD system and by carefully smoothing the outer surface of the RF coil. High conductivity material in the coil supports, increased contact area between the coil supports and the RF coil, and the use of active cooling of the coil further enhance the performance of the system.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: May 22, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Darryl Angelo, Arvind Sundarrajan, Peijun Ding, James H. Tsung, Ilyoung R. Hong, Barry Chin