Patents by Inventor Qizhi He

Qizhi He 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: 6930028
    Abstract: The present invention provides integrated circuit fabrication with a silicon oxynitride antireflective layer for gate location plus patterned photoresist linewidth reduction for gate length definition followed by interconnect definition without patterned photoresist linewidth reduction. This has the advantages of an antireflective layer compatible with linewidth reduction and polysilicon etching.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: August 16, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Maureen A. Hanratty, Daty M. Rogers, Qizhi He, Wei William Lee
  • Publication number: 20040170991
    Abstract: Provided herein is a method for removing nucleic acid amplification reaction inhibitors from test samples.
    Type: Application
    Filed: June 17, 2003
    Publication date: September 2, 2004
    Applicant: Abbott Laboratories
    Inventors: Folim G. Halaka, Dwight Erickson, Qizhi He, Gregor W. Leckie, Bor-Chian Lin
  • Patent number: 6753559
    Abstract: A gate structure which includes a semiconductor substrate having a channel region, a gate insulator adjacent the channel region of the semiconductor substrate and a conductible gate adjacent the gate insulator. A primary insulation layer is adjacent the semiconductor substrate, the primary insulation layer having an opening where the gate insulator contacts the semiconductor substrate and an isolation dielectric layer adjacent the primary insulation layer, the isolation dielectric layer having an opening where the conductible gate is located and the isolation dielectric layer having a silicon oxynitride material.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: June 22, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Amitava Chatterjee, Wei William Lee, Greg A. Hames, Qizhi He, Maureen Hanratty, Iqbal Ali
  • Patent number: 6635229
    Abstract: A method of reducing perfluorocarbon emissions wherein a plasma reactor or thermal chamber is provided and a gaseous single halogen-containing perfluorocarbon is entered into the reactor or thermal chamber. The perfluorocarbon is altered in the plasma reactor or thermal chamber to one of a bromine-containing and/or iodine-containing carbon species and expelled from the reactor or thermal chamber. The alteration includes entering into the plasma reactor or thermal chamber a species taken from the class consisting of iodine, bromine, hydrogen iodide, hydrogen bromide, bromocarbon compound and iodocarbon compounds. When the reactor is a thermal chamber, the temperature in the thermal chamber is at least 800° C. and the single halogen-containing species is located in the chamber for from about 1 minute to about 3 minutes.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: October 21, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Wei W. Lee, Albert H-B Cheng, Qizhi He
  • Patent number: 6436746
    Abstract: A method of fabricating an improved gate structure that may be used in a transistor. A primary insulation layer (22) may be formed adjacent a substrate (12). A disposable gate (24) may be formed adjacent the primary insulation layer (22). An isolation dielectric layer (26) may be formed adjacent the primary insulation layer (22). The disposable gate (24) may be removed to expose a portion of the primary insulation layer (22). The exposed portion of the primary insulation layer (22) may be removed to expose a portion of the substrate (12). The primary insulation layer (22) may be selectively removable relative to the isolation dielectric layer (26). A gate insulator (30) may be formed on the exposed portion of the substrate (12). A gate (32) may be formed adjacent the gate insulator (30).
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: August 20, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Amitava Chatterjee, Wei William Lee, Greg A. Hames, Qizhi He, Maureen Hanratty, Iqbal Ali
  • Publication number: 20010046760
    Abstract: A method of fabricating an improved gate structure that may be used in a transistor. A primary insulation layer (22) may be formed adjacent a substrate (12). A disposable gate (24) may be formed adjacent the primary insulation layer (22). An isolation dielectric layer (26) may be formed adjacent the primary insulation layer (22). The disposable gate (24) may be removed to expose a portion of the primary insulation layer (22). The exposed portion of the primary insulation layer (22) may be removed to expose a portion of the substrate (12). The primary insulation layer (22) may be selectively removable relative to the isolation dielectric layer (26). A gate insulator (30) may be formed on the exposed portion of the substrate (12). A gate (32) may be formed adjacent the gate insulator (30).
    Type: Application
    Filed: July 6, 2001
    Publication date: November 29, 2001
    Inventors: Amitava Chatterjee, Wei William Lee, Greg A. Hames, Qizhi He, Maureen Hanratty, Iqbal Ali