Patents by Inventor Louis C. Hsu

Louis C. Hsu 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: 7078320
    Abstract: Disclosed is a method of manufacturing integrated circuit chips that partially joins an integrated circuit wafer to a supporting wafer at a limited number of joining points. Once joined, the integrated circuit wafer is chemically-mechanically polished to reduce the thickness of the integrated circuit wafer. Then, after reducing the thickness of the integrated circuit wafer, the invention performs conventional processing on the integrated circuit wafer to form devices and wiring in the integrated circuit wafer. Next, the invention cuts through the integrated circuit wafer and the supporting wafer to form chip sections. During this cutting process, the integrated circuit wafer separates from the supporting wafer in chip sections where the integrated circuit wafer is not joined to the supporting wafer by the joining points.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: July 18, 2006
    Assignee: International Business Machines Corporation
    Inventors: Louis C. Hsu, Hsichang Liu, James R. Salimeno, III
  • Patent number: 6864540
    Abstract: The invention includes a field effect transistor (FET) on an insulator layer, and integrated circuit (IC) on SOI chip including the FETs and a method of forming the IC. The FETs include a thin channel with raised source/drain (RSD) regions at each end on an insulator layer, e.g., on an ultra-thin silicon on insulator (SOI) chip. Isolation trenches at each end of the FETs, i.e., at the end of the RSD regions, isolate and define FET islands. Insulating sidewalls at each RSD region sandwich the FET gate between the RSD regions. The gate dielectric may be a high K dielectric. Salicide on the RSD regions and, optionally, on the gates reduce device resistances.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: March 8, 2005
    Assignee: International Business Machines Corp.
    Inventors: Rama Divakaruni, Louis C. Hsu, Rajiv V. Joshi, Carl J. Radens