Patents by Inventor Chandramouili VISWESWARIAH

Chandramouili VISWESWARIAH 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: 8589843
    Abstract: A method, system, and integrated circuit including selectively added timing margin. The method, for integrating statistical timing and automatic test pattern generation (ATPG) to selectively add timing margin in an integrated circuit, includes identifying, while a chip is in design, paths that are unable to be robustly tested “at speed” during manufacturing test, running statistical timing to calculate a margin to be applied to the paths, updating design specifications for margin to be applied to the paths, and optimizing chip logic based on updated design specifications.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: November 19, 2013
    Assignee: International Business Machines Corporation
    Inventors: David E. Lackey, Chandramouili Visweswariah, Paul S. Zuchowski
  • Patent number: 8504971
    Abstract: A method, system, and integrated circuit including selectively added timing margin. The method, for integrating statistical timing and automatic test pattern generation (ATPG) to selectively add timing margin in an integrated circuit, includes identifying, while a chip is in design, paths that are unable to be robustly tested “at speed” during manufacturing test, running statistical timing to calculate a margin to be applied to the paths, updating design specifications for margin to be applied to the paths, and optimizing chip logic based on updated design specifications.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: August 6, 2013
    Assignee: International Business Machines Corporation
    Inventors: David E. Lackey, Chandramouili Visweswariah, Paul S. Zuchowski
  • Patent number: 8490045
    Abstract: A method, system, and integrated circuit including selectively added timing margin. The method, for integrating statistical timing and automatic test pattern generation (ATPG) to selectively add timing margin in an integrated circuit, includes identifying, while a chip is in design, paths that are unable to be robustly tested “at speed” during manufacturing test, running statistical timing to calculate a margin to be applied to the paths, updating design specifications for margin to be applied to the paths, and optimizing chip logic based on updated design specifications.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: July 16, 2013
    Assignee: International Business Machines Corporation
    Inventors: David E. Lackey, Chandramouili Visweswariah, Paul S. Zuchowski
  • Publication number: 20120124538
    Abstract: A method, system, and integrated circuit including selectively added timing margin. The method, for integrating statistical timing and automatic test pattern generation (ATPG) to selectively add timing margin in an integrated circuit, includes identifying, while a chip is in design, paths that are unable to be robustly tested “at speed” during manufacturing test, running statistical timing to calculate a margin to be applied to the paths, updating design specifications for margin to be applied to the paths, and optimizing chip logic based on updated design specifications.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 17, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David E. LACKEY, Chandramouili VISWESWARIAH, Paul S. ZUCHOWSKI
  • Publication number: 20120115256
    Abstract: A method, system, and integrated circuit including selectively added timing margin. The method, for integrating statistical timing and automatic test pattern generation (ATPG) to selectively add timing margin in an integrated circuit, includes identifying, while a chip is in design, paths that are unable to be robustly tested “at speed” during manufacturing test, running statistical timing to calculate a margin to be applied to the paths, updating design specifications for margin to be applied to the paths, and optimizing chip logic based on updated design specifications.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 10, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David E. LACKEY, Chandramouili VISWESWARIAH, Paul S. ZUCHOWSKI
  • Publication number: 20120112341
    Abstract: A method, system, and integrated circuit including selectively added timing margin. The method, for integrating statistical timing and automatic test pattern generation (ATPG) to selectively add timing margin in an integrated circuit, includes identifying, while a chip is in design, paths that are unable to be robustly tested “at speed” during manufacturing test, running statistical timing to calculate a margin to be applied to the paths, updating design specifications for margin to be applied to the paths, and optimizing chip logic based on updated design specifications.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 10, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David E. LACKEY, Chandramouili VISWESWARIAH, Paul S. ZUCHOWSKI