Patents by Inventor Fuok-Luen Heng

Fuok-Luen Heng 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).

  • MINIMUM LAYOUT PERTURBATION-BASED ARTWORK LEGALIZATION WITH GRID CONSTRAINTS FOR HIERARCHICAL DESIGNS
    Publication number: 20070245283
    Abstract: A method comprises extracting a hierarchical grid constraint set and modeling one or more critical objects of at least one cell as a variable set. The method further comprises solving a linear programming problem based on the hierarchical grid constraint set with the variable set to provide initial locations of the critical objects of the at least one cell and determining target on-grid locations of the one or more critical objects in the at least one cell using the results of the linear programming solution.
    Type: Application
    Filed: April 14, 2006
    Publication date: October 18, 2007
    Inventors: Robert Allen, Michael Gray, Fuok-Luen Heng, Jason Hibbeler, Kevin McCullen, Rani Narayan, Robert Walker