Patents by Inventor Timothy Dunham

Timothy Dunham 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: 20230087217
    Abstract: A computer system traces an original electronic design automation (EDA) implementation process for electronic hardware designs. The original EDA implementation process includes multiple subprocesses to convert a hardware model to a physically-realized electronic circuit. The system inputs a cryptographic key and design information that includes the hardware model, constraints, properties, implementation settings, and other directives for directing the conversion. The cryptographic key and design information are processed to generate a sequence of instructions to execute and provide traceability of each subprocess.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 23, 2023
    Inventors: Ali Asgar SOHANGHPURWALA, Scott HARPER, Jonathan GRAF, Carlton FRALEY, Alan COOK, Timothy DUNHAM
  • Publication number: 20080104555
    Abstract: A computer program product for generating test patterns for a pattern sensitive algorithm. The program product includes code for extracting feature samples from a layout design; grouping feature samples into clusters; selecting at least one area from the layout design that covers a feature sample from each cluster; and saving each pattern layout covered by the at least one area as test patterns.
    Type: Application
    Filed: November 29, 2007
    Publication date: May 1, 2008
    Inventors: David DeMaris, Timothy Dunham, William Leipold, Daniel Maynard, Michael Scaman, Shi Zhong
  • Publication number: 20080019585
    Abstract: A method for reducing a number of shapes, and a computer readable program code adapted to perform said method. The method forms first and second shape patterns. The second shape pattern includes the first shape pattern and error shapes. The error shapes are extracted from the second shape pattern. At least one environment shape corresponding to each error shape is derived from a subset of the error shapes. For example, each error shape in the subset may be expanded to form a corresponding expanded shape, and at least one environment shape corresponding to each expanded shape may be formed by removing all portions of the expanded shape common to the second shape pattern. The environment shape reflects a local geometric environment of its corresponding error shape. A subset of the environment shapes are deleted such that only unique environment shapes satisfying a selection criterion remain.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 24, 2008
    Inventors: Joseph Allen, Timothy Dunham, Valarmathi Shanmugam
  • Publication number: 20070273048
    Abstract: An interconnect structure, method of fabricating the interconnect structure and method of designing the interconnect structure for use in semiconductor devices. The interconnect structure includes a damascene metal wire having a pattern of dielectric filled holes.
    Type: Application
    Filed: August 13, 2007
    Publication date: November 29, 2007
    Inventors: Timothy Dunham, Ezra Hall, Howard Landis, Mark Lavin, William Leipold
  • Publication number: 20070275551
    Abstract: An interconnect structure, method of fabricating the interconnect structure and method of designing the interconnect structure for use in semiconductor devices. The interconnect structure includes a damascene metal wire having a pattern of dielectric filled holes.
    Type: Application
    Filed: August 13, 2007
    Publication date: November 29, 2007
    Inventors: Timothy Dunham, Ezra Hall, Howard Landis, Mark Lavin, William Leipold
  • Publication number: 20070038970
    Abstract: A system and method for generating test patterns for a pattern sensitive algorithm. The method comprises the steps extracting feature samples from a layout design; grouping feature samples into clusters; selecting at least one area from the layout design that covers a feature sample from each cluster; and saving each pattern layout covered by the at least one area as test patterns.
    Type: Application
    Filed: August 12, 2005
    Publication date: February 15, 2007
    Applicant: International Business Machines Corporation
    Inventors: David DeMaris, Timothy Dunham, William Leipold, Daniel Maynard, Michael Scaman, Shi Zhong
  • Publication number: 20060081988
    Abstract: An interconnect structure, method of fabricating the interconnect structure and method of designing the interconnect structure for use in semiconductor devices. The interconnect structure includes a damascene metal wire having a pattern of dielectric filled holes.
    Type: Application
    Filed: October 21, 2005
    Publication date: April 20, 2006
    Inventors: Timothy Dunham, Ezra Hall, Howard Landis, Mark Lavin, William Leipold
  • Publication number: 20050125756
    Abstract: Disclosed is a method and structure that partitions an integrated circuit design by identifying logical blocks within the integrated circuit design based on size heuristics of logical macros in the design hierarchy. The invention determines whether the number of logical blocks is within a range of desired number of logical blocks and repeats the process of identifying logical blocks for different hierarchical levels of the integrated circuit design until the number of logical blocks is within the range of the desired number of logical blocks. This serves as a guide to partition the chip as opposed to a grid-like partitioning.
    Type: Application
    Filed: December 3, 2003
    Publication date: June 9, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gary Ditlow, Daria Dooling, Timothy Dunham, William Leipold, Stephen Thomas, Ralph Williams