Patents by Inventor Chun Wai Joseph Tong

Chun Wai Joseph Tong 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: 10151025
    Abstract: The embodiments disclose an apparatus including at least two carbon source deposition tools for emitting electrons, at least two reflective polarity rear button permanent magnets integrated into the carbon source deposition tools for reflecting emitted electrons, and at least two paired polarity Helmholtz coils integrated into the carbon source deposition tools for forming uniform parallel magnetic field lines for confining the emitted electrons to uniformly deposit carbon onto the surfaces of a two-sided media disk.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: December 11, 2018
    Assignee: Seagate Technology LLC
    Inventors: Christopher Loren Platt, Zhaohui Fan, Samuel Lewis Tanaka, Chun Wai Joseph Tong, Thomas Larson Greenberg, Xiaoding Ma
  • Publication number: 20160035546
    Abstract: The embodiments disclose an apparatus including at least two carbon source deposition tools for emitting electrons, at least two reflective polarity rear button permanent magnets integrated into the carbon source deposition tools for reflecting emitted electrons, and at least two paired polarity Helmholtz coils integrated into the carbon source deposition tools for forming uniform parallel magnetic field lines for confining the emitted electrons to uniformly deposit carbon onto the surfaces of a two-sided media disk.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 4, 2016
    Inventors: Christopher Loren Platt, Zhaohui Fan, Samuel Lewis Tanaka, Chun Wai Joseph Tong, Thomas Larson Greenberg, Xiaoding Ma
  • Patent number: 8573579
    Abstract: Methods and apparatus are provided for static-biasing a pre-metalized non-conductive substrate within a process chamber. A substrate holder that holds a pre-metalized non-conductive substrate is engaged by a lift mechanism that provides movement of the substrate in a first, upward direction to a contact position within the process chamber and in a second direction to a non-contact position. When the substrate holder is moved to the contact position, the substrate electrically engages a conductive spring-loaded compliance mechanism that is mounted in a fixed position within the process chamber. The spring-loaded compliance mechanism is connected to a bias-voltage feed-through for the process chamber that applies a bias voltage to the substrate via the spring-loaded compliance mechanism.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: November 5, 2013
    Assignee: Seagate Technology LLC
    Inventors: Chang Bok Yi, Tatsuru Tanaka, Chun Wai Joseph Tong, Hongling Liu, Paul S. McLeod
  • Publication number: 20110212269
    Abstract: Methods and apparatus are provided for static-biasing a pre-metalized non-conductive substrate within a process chamber. A substrate holder that holds a pre-metalized non-conductive substrate is engaged by a lift mechanism that provides movement of the substrate in a first, upward direction to a contact position within the process chamber and in a second direction to a non-contact position. When the substrate holder is moved to the contact position, the substrate electrically engages a conductive spring-loaded compliance mechanism that is mounted in a fixed position within the process chamber. The spring-loaded compliance mechanism is connected to a bias-voltage feed-through for the process chamber that applies a bias voltage to the substrate via the spring-loaded compliance mechanism.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 1, 2011
    Inventors: Chang Bok Yi, Tatsuru Tanaka, Chun Wai Joseph Tong, Hongling Liu, Paul S. McLeod