Patents by Inventor Denis L. Goinard

Denis L. Goinard 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).

  • Method and apparatus for performing dummy-fill by using a set of dummy-fill cells
    Patent number: 7681166
    Abstract: An embodiment performs dummy fill in a design layout to achieve a target density that is within a narrow range of target densities. During operation, the system can receive a design layout that includes a region whose density is not within a desired range of target densities. Next, the system can receive a set of dummy-fill cells which can be used to place a dummy-fill array to fill an arbitrarily sized rectangle. The set of dummy-fill cells may contain assist features and optical proximity corrections which cause the dummy shapes to print properly regardless of the size of the dummy-fill array. The system may then determine a polygon in the design layout to fill with dummy-fill cells. Next, the system may fracture the polygon into a set of rectangles. The system may use the set of dummy-fill cells to place a dummy-fill array that fills a rectangle.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: March 16, 2010
    Assignee: Synopsys, Inc.
    Inventors: Paulus J. M. van Adrichem, Denis L. Goinard
  • METHOD AND APPARATUS FOR PERFORMING DUMMY-FILL BY USING A SET OF DUMMY-FILL CELLS
    Publication number: 20090089732
    Abstract: An embodiment performs dummy fill in a design layout to achieve a target density that is within a narrow range of target densities. During operation, the system can receive a design layout that includes a region whose density is not within a desired range of target densities. Next, the system can receive a set of dummy-fill cells which can be used to place a dummy-fill array to fill an arbitrarily sized rectangle. The set of dummy-fill cells may contain assist features and optical proximity corrections which cause the dummy shapes to print properly regardless of the size of the dummy-fill array. The system may then determine a polygon in the design layout to fill with dummy-fill cells. Next, the system may fracture the polygon into a set of rectangles. The system may use the set of dummy-fill cells to place a dummy-fill array that fills a rectangle.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Applicant: Synopsys, Inc.
    Inventors: Paulus J.M. van Adrichem, Denis L. Goinard