Patents by Inventor Veena Prabhu

Veena Prabhu 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: 8916974
    Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: December 23, 2014
    Assignee: International Business Machines Corporation
    Inventors: Karan B. Koti, Veena Prabhu
  • Patent number: 8797096
    Abstract: Structures and methods are provided for reducing or eliminating crosstalk in devices. Based on a predetermined compensation schemes, a compensation scheme is selected that minimizes the deviation of the non-aggressed victim signal caused by one or more aggressor signals. Instances of a compensation circuit corresponding to the selected compensation scheme are placed along a victim signal line at locations defined by the compensation scheme.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 5, 2014
    Assignee: International Business Machines Corporation
    Inventors: Prasad S. Nalawade, Veena Prabhu, Krishnan S. Rengarajan
  • Patent number: 8769464
    Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: July 1, 2014
    Assignee: International Business Machines Corporation
    Inventors: Karan B. Koti, Veena Prabhu
  • Patent number: 8753900
    Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: June 17, 2014
    Assignee: International Business Machines Corporation
    Inventors: Karan B. Koti, Veena Prabhu
  • Publication number: 20130147547
    Abstract: Structures and methods are provided for reducing or eliminating crosstalk in devices. Based on a predetermined compensation schemes, a compensation scheme is selected that minimizes the deviation of the non-aggressed victim signal caused by one or more aggressor signals. Instances of a compensation circuit corresponding to the selected compensation scheme are placed along a victim signal line at locations defined by the compensation scheme.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Prasad S. NALAWADE, Veena PRABHU, Krishnan S. RENGARAJAN
  • Publication number: 20120261824
    Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.
    Type: Application
    Filed: March 8, 2012
    Publication date: October 18, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: KARAN B. KOTI, VEENA PRABHU
  • Publication number: 20120174050
    Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: KARAN B. KOTI, VEENA PRABHU
  • Publication number: 20110049721
    Abstract: Methods and apparatus for routing signal paths in an integrated circuit. One or more signal routing paths for transferring signals of the integrated circuit may be determined. A dummy fill pattern for the integrated circuit may be determined based on the one or more metal density specifications and at least one design rule for reducing cross coupling capacitance between the dummy fill pattern and the routing paths. The signal routing paths and/or the dummy fill pattern may be incrementally optimized to meet one or more timing requirements of the integrated circuit.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Karan B. Koti, Veena Prabhu