Patents by Inventor Kim Yang Lee

Kim Yang Lee 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: 20080128944
    Abstract: A method of manufacturing a stamper/imprinter for patterning of a recording medium via thermally assisted nano-imprint lithography, comprising steps of: providing a first stamper/imprinter comprising a topographically patterned surface having a correspondence to a selected pattern to be formed in a surface of the medium; injection molding a layer of a polymeric material in conformal contact with the topographically patterned surface of the first stamper/imprinter; and separating the layer of polymeric material from the topographically patterned surface of the first stamper/imprinter to form a second stamper/imprinter comprising a topographically patterned stamping/imprinting surface including a plurality of projections and depressions with dimensions and spacings having a correspondence to the selected pattern to be formed in a surface of the medium.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Inventors: Hong Ying Wang, Gennady (Gene) Gauzner, Koich Wago, Kim Yang Lee, David S. Kuo
  • Patent number: 7070697
    Abstract: In one illustrative example, a method of making a read sensor of a magnetic head involves forming a barrier structure which surrounds a central mask formed over a plurality of read sensor layers; etching the read sensor layers to form the read sensor below the mask; and depositing, with use of the mask and the barrier structure, hard bias and lead layers to form around the read sensor. The barrier structure may be formed by, for example, depositing one or more barrier structure layers over the read sensor layers and performing a photolithography process. The barrier structure physically blocks materials being deposited at relatively low angles (e.g. angles at or below 71 degrees) so as to reduce their formation far underneath the mask (e.g. when using a bridged mask), which could otherwise form an electrical short, and/or to improve the symmetry of the deposited materials around the read sensor.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: July 4, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: James Mac Freitag, Kim Yang Lee, Mustafa Pinarbasi, Chun-Ming Albert Wang
  • Publication number: 20040200800
    Abstract: In one illustrative example, a method of making a read sensor of a magnetic head involves forming a barrier structure which surrounds a central mask formed over a plurality of read sensor layers; etching the read sensor layers to form the read sensor below the mask; and depositing, with use of the mask and the barrier structure, hard bias and lead layers to form around the read sensor. The barrier structure may be formed by, for example, depositing one or more barrier structure layers over the read sensor layers and performing a photolithography process. The barrier structure physically blocks materials being deposited at relatively low angles (e.g. angles at or below 71 degrees) so as to reduce their formation far underneath the mask (e.g. when using a bridged mask), which could otherwise form an electrical short, and/or to improve the symmetry of the deposited materials around the read sensor.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 14, 2004
    Inventors: James Mac Freitag, Kim Yang Lee, Mustafa Pinarbasi, Chun-Ming Albert Wang
  • Patent number: 6503641
    Abstract: An electrical conductor for use in an electronic structure is disclosed which includes a conductor body that is formed of an alloy including between about 0.001 atomic % and about 2 atomic % of an element selected from the group consisting of Ti, Zr, In, Sn and Hf; and a liner abutting the conductor body which is formed of an alloy that includes Ta, W, Ti, Nb and V. The invention further discloses a liner for use in a semiconductor interconnect that is formed of a material selected from the group consisting of Ti, Hf, In, Sn, Zr and alloys thereof, TiCu3, Ta1−XTix, Ta1−X, Hfx, Ta1−X, Inxy, Ta1−XSnx, Ta1−XZrx.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: January 7, 2003
    Assignee: International Business Machines Corporation
    Inventors: Cyril Cabral, Jr., Roy Arthur Carruthers, James McKell Edwin Harper, Chao-Kun Hu, Kim Yang Lee, Ismail Cevdet Noyan, Robert Rosenberg, Thomas McCarroll Shaw
  • Publication number: 20020076574
    Abstract: An electrical conductor for use in an electronic structure is disclosed which includes a conductor body that is formed of an alloy including between about 0.001 atomic % and about 2 atomic % of an element selected from the group consisting of Ti, Zr, In, Sn and Hf; and a liner abutting the conductor body which is formed of an alloy that includes Ta, W, Ti, Nb and V. The invention further discloses a liner for use in a semiconductor interconnect that is formed of a material selected from the group consisting of Ti, Hf, In, Sn, Zr and alloys thereof, TiCu3, Ta1−XTix, Ta1−XHfx, Ta1−XInxy, Ta1−XSnx, Ta1−XZrx.
    Type: Application
    Filed: December 18, 2000
    Publication date: June 20, 2002
    Applicant: International Business Machines Corporation
    Inventors: Cyril Cabral, Roy Arthur Carruthers, James McKell Edwin Harper, Chao-Kun Hu, Kim Yang Lee, Ismail Cevdet Noyan, Robert Rosenberg, Thomas McCarroll Shaw
  • Patent number: 6251751
    Abstract: A method for forming buried oxide regions below a single crystal semiconductor layer incorporating the steps of forming epitaxial layers having different rates of oxidation with the lower layer having a faster rate of oxidation and oxidizing the layers through an opening in a mask. A plurality of oxide isolated FET's may be formed. The invention reduces the problem of source/drain parasitic capacitance and short channel effects while isolating FET's and eliminating floating body effects of an FET by selectively oxidizing semiconductor layers.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: June 26, 2001
    Assignee: International Business Machines Corporation
    Inventors: Jack Oon Chu, Khalid Ezzeldin Ismail, Kim Yang Lee, John Albrecht Ott
  • Patent number: 5963817
    Abstract: A method for forming buried oxide regions below a single crystal semiconductor layer incorporating the steps of forming epitaxial layers having different rates of oxidation with the lower layer having a faster rate of oxidation and oxidizing the layers through an opening in a mask. A plurality of oxide isolated FET's may be formed. The invention reduces the problem of source/drain parasitic capacitance and short channel effects while isolating FET's and eliminating floating body effects of an FET by selectively oxidizing semiconductor layers.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: October 5, 1999
    Assignee: International Business Machines Corporation
    Inventors: Jack Oon Chu, Khalid Ezzeldin Ismail, Kim Yang Lee, John Albrecht Ott
  • Patent number: 5650377
    Abstract: Fine epitaxial patterns of yttrium barium copper oxide on a strontium titanate substrate are provided by using a silicon nitride mask to define the pattern to be formed. A thin film of yttrium barium copper oxide is placed on the silicon nitride mask and exposed portions of strontium titanate substrate. Where the yttrium barium copper oxide is in contact with the silicon nitride mask, it is nonepitaxial in crystal structure. Where the yttrium barium copper oxide contacts the strontium titanate substrate in the openings, it is epitaxial in structure forming fine patterns that become superconducting below the critical transition temperature. A channel can be formed in the strontium titanate substrate. The epitaxial yttrium barium copper oxide pattern is formed in this channel to minimize possible exposure to the silicon nitride mask.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: July 22, 1997
    Assignee: International Business Machines Corporation
    Inventors: Dieter Paul Kern, Robert Benjamin Laibowitz, Kim Yang Lee, Mark I. Lutwyche