Patents by Inventor Joshua Chiu-Wing Tsui

Joshua Chiu-Wing Tsui 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: 6623596
    Abstract: A plasma reactor for processing a workpiece includes a reactor enclosure defining a processing chamber, a base within the chamber for supporting the workpiece during processing thereof, a semiconductor window electrode overlying the base, a gas inlet system for admitting a plasma precursor gas into the chamber, an electrical terminal coupled to the semiconductor window electrode, an inductive antenna adjacent one side of the semiconductor window electrode opposite the base for coupling power into the interior of said chamber through the semiconductor window electrode.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: September 23, 2003
    Assignee: Applied Materials, Inc
    Inventors: Kenneth S. Collins, Michael Rice, John Trow, Douglas Buchberger, Eric Askarinam, Joshua Chiu-Wing Tsui, David W. Groechel, Raymond Hung
  • Patent number: 6077384
    Abstract: The invention is embodied by a plasma reactor for processing a workpiece, including a reactor enclosure defining a processing chamber, a semiconductor window, a base within the chamber for supporting the workpiece during processing thereof, a gas inlet system for admitting a plasma precursor gas into the chamber, and an inductive antenna adjacent a side of the semiconductor window opposite the base for coupling power into the interior of the chamber through the semiconductor window electrode.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: June 20, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Michael Rice, John Trow, Douglas Buchberger, Eric Askarinam, Joshua Chiu-Wing Tsui, David W. Groechel, Raymond Hung
  • Patent number: 5800871
    Abstract: An electrostatic chuck includes a pedestal having a metallic upper surface, and a layer of a porous dielectric material formed on said upper surface of the pedestal. The dielectric layer is impregnated with a plasma-resistant sealant.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: September 1, 1998
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Joshua Chiu-Wing Tsui, Douglas Buchberger
  • Patent number: 5792562
    Abstract: An electrostatic chuck includes a pedestal having a metallic upper surface, and a layer of a porous dielectric material formed on said upper surface of the pedestal. The dielectric layer is impregnated with a plasma-resistant sealant.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: August 11, 1998
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Joshua Chiu-Wing Tsui, Douglas Buchberger
  • Patent number: 5762714
    Abstract: A plasma guard member that has the configuration of a flat concentric ring is used in a vacuum process chamber equipped with a plasma reaction chamber, a plasma source and a lower chamber which houses an electrostatic chuck for preventing charged particles from drifting or diffusing to the lower chamber and contact the electrostatic chuck such that the substrate holding capability of the chuck is not adversely affected.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: June 9, 1998
    Assignee: Applied Materials, Inc.
    Inventors: Jon Mohn, Joshua Chiu-Wing Tsui, Kenneth S. Collins
  • Patent number: 5583737
    Abstract: An electrostatic chuck for holding a wafer in a plasma processing chamber, the chuck including a pedestal having a top surface, an internal manifold for carrying a cooling gas, and a first plurality of holes leading from the internal manifold toward said top surface; and a dielectric layer on the top surface of the pedestal. The dielectric layer has a top side and second plurality of holes, each of which is aligned with a different one of the holes of the first plurality of holes in the pedestal. The first and second holes form a plurality of passages extending from the internal manifold to the top side of the dielectric layer and through which the cooling gas is supplied to the backside of the wafer. Each of the first holes and the second hole aligned therewith form a different one of the plurality of passages.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: December 10, 1996
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, John R. Trow, Joshua Chiu-Wing Tsui, Craig A. Roderick, Nicolas J. Bright, Jeffrey Marks, Tetsuya Ishikawa, Jian Ding