Patents by Inventor Chao Yi Tien

Chao Yi Tien 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: 8122387
    Abstract: A method of physical design for integrated circuit (IC) chip fabrication, physical design system and program product therefor. A design shape is fragmented into segments for Optical Proximity Correction (OPC) and a harmonic mean of the segments is determined. Electrical intent is determined for the shape and a harmonic mean is determined for the segments. Segments may be moved based on a effect on the harmonic mean from moving the segments, measured using a harmonic mean cost function. Finally segmented shapes are passed to OPC.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: February 21, 2012
    Assignee: International Business Macines Corporation
    Inventors: Geng Han, Fook-Luen Heng, Jin Fuw Lee, Chao Yi Tien, legal representative, Rama N. Singh
  • Publication number: 20100318956
    Abstract: A method of physical design for integrated circuit (IC) chip fabrication, physical design system and program product therefor. A design shape is fragmented into segments for Optical Proximity Correction (OPC) and a harmonic mean of the segments is determined. Electrical intent is determined for the shape and a harmonic mean is determined for the segments. Segments may be moved based on a effect on the harmonic mean from moving the segments, measured using a harmonic mean cost function. Finally segmented shapes are passed to OPC.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 16, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Geng Han, Fook-Luen Heng, Jin Fuw Lee, Chao Yi Tien, Rama N. Singh