Patents by Inventor Kevin A. Beaudette

Kevin A. Beaudette 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: 8578313
    Abstract: One embodiment of the present invention provides a system that generates a pattern-clip-based hotspot database for performing automatic pattern-clip-based layout verification. During operation, the system receives a list of pattern clips which specify manufacturing hotspots to be avoided in a layout, wherein each pattern clip comprises a set of geometries in proximity to each other. Next, for each pattern clip, the system perturbs the pattern clip to determine a first range of variations for the constituent set of geometries wherein the perturbed pattern clip no longer causes a manufacturing hotspot. The system then extracts a set of correction guidance descriptions from the first range of variations for correcting the pattern clip. Subsequently, the system stores the pattern clip and the set of correction guidance descriptions in the pattern-clip-based hotspot database.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: November 5, 2013
    Assignee: Synopsys, Inc.
    Inventors: Zongwu Tang, Daniel Zhang, Alex Miloslavsky, Subarnarekha Sinha, Jingyu Xu, Kent Y. Kwang, Kevin A. Beaudette
  • Publication number: 20090271749
    Abstract: One embodiment of the present invention provides a system that generates a pattern-clip-based hotspot database for performing automatic pattern-clip-based layout verification. During operation, the system receives a list of pattern clips which specify manufacturing hotspots to be avoided in a layout, wherein each pattern clip comprises a set of geometries in proximity to each other. Next, for each pattern clip, the system perturbs the pattern clip to determine a first range of variations for the constituent set of geometries wherein the perturbed pattern clip no longer causes a manufacturing hotspot. The system then extracts a set of correction guidance descriptions from the first range of variations for correcting the pattern clip. Subsequently, the system stores the pattern clip and the set of correction guidance descriptions in the pattern-clip-based hotspot database.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 29, 2009
    Applicant: SYNOPSYS, INC.
    Inventors: Zongwu Tang, Daniel Zhang, Alex Miloslavsky, Subarnarekha Sinha, Jingyu Xu, Kent Y. Kwang, Kevin A. Beaudette
  • Patent number: 6823503
    Abstract: One embodiment of the invention provides a system that creates a phase-shifting mask for a photolithographic process used in fabricating an integrated circuit. The system starts by receiving a layout for the integrated circuit. The system then associates nodes with features in the layout, and generates arcs between the nodes. Next, the system generates a coloring for the nodes using two colors. The system then generates phase shifters for the phase-shifting mask and assigns different phases to the phase shifters based upon the coloring of the nodes.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: November 23, 2004
    Assignee: Numerical Technologies, Inc.
    Inventor: Kevin A. Beaudette
  • Publication number: 20040128642
    Abstract: One embodiment of the invention provides a system that creates a phase-shifting mask for a photolithographic process used in fabricating an integrated circuit. The system starts by receiving a layout for the integrated circuit. The system then associates nodes with features in the layout, and generates arcs between the nodes. Next, the system generates a coloring for the nodes using two colors. The system then generates phase shifters for the phase-shifting mask and assigns different phases to the phase shifters based upon the coloring of the nodes.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 1, 2004
    Applicant: Numerical Technologies Inc.
    Inventor: Kevin A. Beaudette