Patents by Inventor Chenghung Paul Chang

Chenghung Paul Chang 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).

  • Publication number: 20190362963
    Abstract: A self-centering wafer carrier system for a chemical vapor deposition (CVD) reactor includes a wafer carrier comprising an edge. The wafer carrier at least partially supports a wafer for CVD processing. A rotating tube comprises an edge that supports the wafer carrier during processing. An edge geometry of the wafer carrier and an edge geometry of the rotating tube being chosen to provide a coincident alignment of a central axis of the wafer carrier and a rotation axis of the rotating tube during process at a desired process temperature.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 28, 2019
    Applicant: Veeco Instruments, Inc.
    Inventors: Sandeep Krishnan, Alexander I. Gurary, Chenghung Paul Chang, Earl Marcelo
  • Patent number: 10438795
    Abstract: A self-centering wafer carrier system for a chemical vapor deposition (CVD) reactor includes a wafer carrier comprising an edge. The wafer carrier at least partially supports a wafer for CVD processing. A rotating tube comprises an edge that supports the wafer carrier during processing. An edge geometry of the wafer carrier and an edge geometry of the rotating tube being chosen to provide a coincident alignment of a central axis of the wafer carrier and a rotation axis of the rotating tube during process at a desired process temperature.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: October 8, 2019
    Assignee: Veeco Instruments, Inc.
    Inventors: Sandeep Krishnan, Alexander I. Gurary, Chenghung Paul Chang, Earl Marcelo
  • Patent number: 10136472
    Abstract: A terminal for mechanical support of a heating element, includes a base device, a mounting device, the mounting device adapted to support the heating element, and a support device connecting the base device to the mounting device, the support device allowing displacement of the heating element about a radial axis and less than about 10% displacement of the heating element about a tangential and/or axial axis.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: November 20, 2018
    Assignees: Plansee SE, Veeco Instruments Inc.
    Inventors: Arno Plankensteiner, Christian Feist, Vadim Boguslavskiy, Alexander I. Gurary, Chenghung Paul Chang
  • Publication number: 20160372321
    Abstract: A self-centering wafer carrier system for a chemical vapor deposition (CVD) reactor includes a wafer carrier comprising an edge. The wafer carrier at least partially supports a wafer for CVD processing. A rotating tube comprises an edge that supports the wafer carrier during processing. An edge geometry of the wafer carrier and an edge geometry of the rotating tube being chosen to provide a coincident alignment of a central axis of the wafer carrier and a rotation axis of the rotating tube during process at a desired process temperature.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 22, 2016
    Applicant: Veeco Instruments, Inc.
    Inventors: Sandeep Krishnan, Alexander I. Gurary, Chenghung Paul Chang, Earl Marcelo
  • Patent number: 9388493
    Abstract: A chemical vapor deposition reactor and a method of wafer processing are provided. The reactor can include a reaction chamber having an interior and an entry port for insertion and removal of substrates, a gas inlet manifold communicating with the interior of the chamber for admitting process gasses to form a deposit on substrates held within the interior, a shutter mounted to the chamber, and one or more cleaning elements mounted within the chamber. The shutter can be movable between (i) a run position in which the cleaning elements are remote from the exhaust channel and (ii) a cleaning position in which the one or more cleaning elements engage with the shutter so that the cleaning elements remove deposited particles from the shutter upon movement of the shutter to the cleaning position.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: July 12, 2016
    Assignee: Veeco Instruments Inc.
    Inventors: Chenghung Paul Chang, Keng Moy, Alexander I. Gurary
  • Publication number: 20140190405
    Abstract: A chemical vapor deposition reactor and a method of wafer processing are provided. The reactor can include a reaction chamber having an interior and an entry port for insertion and removal of substrates, a gas inlet manifold communicating with the interior of the chamber for admitting process gasses to form a deposit on substrates held within the interior, a shutter mounted to the chamber, and one or more cleaning elements mounted within the chamber. The shutter can be movable between (i) a run position in which the cleaning elements are remote from the exhaust channel and (ii) a cleaning position in which the one or more cleaning elements engage with the shutter so that the cleaning elements remove deposited particles from the shutter upon movement of the shutter to the cleaning position.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: VEECO INSTRUMENTS INC.
    Inventors: Chenghung Paul Chang, Keng Moy, Alexander I. Gurary
  • Publication number: 20140042147
    Abstract: A terminal for mechanical support of a heating element, includes a base device, a mounting device, the mounting device adapted to support the heating element, and a support device connecting the base device to the mounting device, the support device allowing displacement of the heating element about a radial axis and less than about 10% displacement of the heating element about a tangential and/or axial axis.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicants: VEECO INSTRUMENTS INC., PLANSEE SE
    Inventors: ARNO PLANKENSTEINER, CHRISTIAN FEIST, VADIM BOGUSLAVSKIY, ALEXANDER I. GURARY, CHENGHUNG PAUL CHANG
  • Patent number: D690671
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: October 1, 2013
    Assignee: Veeco Instruments Inc.
    Inventors: Alexander I. Gurary, Keng Moy, Chenghung Paul Chang
  • Patent number: D695241
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: December 10, 2013
    Assignee: Veeco Instruments Inc.
    Inventors: Alexander I. Gurary, Keng Moy, Chenghung Paul Chang
  • Patent number: D810705
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: February 20, 2018
    Assignee: Veeco Instruments Inc.
    Inventors: Sandeep Krishnan, Alexander I. Gurary, Chenghung Paul Chang, Earl Marcelo
  • Patent number: D819580
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: June 5, 2018
    Assignee: Veeco Instruments, Inc.
    Inventors: Sandeep Krishnan, Alexander I. Gurary, Chenghung Paul Chang, Earl Marcelo
  • Patent number: D921431
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: June 8, 2021
    Inventors: Sandeep Krishnan, Bojan Mitrovic, Aniruddha Bagchi, Alexander Gurary, Chenghung Paul Chang, Ian Kunsch, Matthew J. Van Doren