Patents by Inventor Susan E. Cellier

Susan E. Cellier 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: 10360338
    Abstract: A computer-implemented method for extracting a capacitance for a target wire of an integrated circuit includes receiving a design of the integrated circuit having a plurality of wiring layers and selecting a target wire to perform the capacitance extraction. The method further includes determining a first adjacent wiring layer and a second adjacent wiring layer and removing a first subset and a second subset of a plurality of non-adjacent wiring layers from the plurality of wiring layers. The method includes approximating a first plate to be used in the extraction based on the first subset of the plurality of non-adjacent wiring layers and approximating a second plate to be used in the extraction based on the second subset of the plurality of non-adjacent wiring layers and performing the extraction of the target wire based on the first and second adjacent wiring layers and the first and second plates.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: July 23, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ron D. Rose, David J. Widiger, Patrick M. Williams
  • Patent number: 10354041
    Abstract: Disclosed is a method for improving capacitance extraction performance in a circuit, the method including mapping, via a computing resource, a first layout including a plurality of wiring paths, selecting at least one target wire from the plurality of wiring paths, selecting at least one group of wires running orthogonally to the at least one target wire, identifying and selecting within the at least one group at least one set of two or more wires that are combinable for representation as a single merged wire, mapping a second layout, via the computing resource, and representing the at least one set of two or more wires as the single merged wire in said second layout, analyzing parasitic capacitance between the at least one target wire and the at least one group of wires using the second layout, and manufacturing the circuit using information from the analyzing of parasitic capacitance.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 16, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert J. Allen, Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ronald D. Rose, David J. Widiger
  • Patent number: 10169516
    Abstract: Embodiments include methods, processing systems and computer program products for extracting via capacitance. Aspects include placing various shapes of target nets of an IC into a Cshapes collection and a CshapesVia collection, processing the shapes in these collections and placing the processed shapes into a Ctile collection and a CtilesVia collection, and extracting via capacitance of the target nets through each of Cshapes, CshapesVia, Ctiles, and CtilesVia collections. In exemplary embodiments, the processing operation includes: reducing the complexity of the shapes in the shape collections, removing all overhang shapes, and all overlapped shapes from the shape collections, and unioning the shapes in the Cshapes collection and the CshapesVia collection, respectively.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: January 1, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ronald D. Rose, David J. Widiger
  • Publication number: 20180082009
    Abstract: Disclosed is a method for improving capacitance extraction performance in a circuit, the method including mapping, via a computing resource, a first layout including a plurality of wiring paths, selecting at least one target wire from the plurality of wiring paths, selecting at least one group of wires running orthogonally to the at least one target wire, identifying and selecting within the at least one group at least one set of two or more wires that are combinable for representation as a single merged wire, mapping a second layout, via the computing resource, and representing the at least one set of two or more wires as the single merged wire in said second layout, analyzing parasitic capacitance between the at least one target wire and the at least one group of wires using the second layout, and manufacturing the circuit using information from the analyzing of parasitic capacitance.
    Type: Application
    Filed: December 5, 2017
    Publication date: March 22, 2018
    Inventors: Robert J. Allen, Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ronald D. Rose, David J. Widiger
  • Patent number: 9886541
    Abstract: Disclosed is a method for improving capacitance extraction performance in a circuit, the method including mapping, via a computing resource, a first layout including a plurality of wiring paths, selecting at least one target wire from the plurality of wiring paths, selecting at least one group of wires running orthogonally to the at least one target wire, identifying and selecting within the at least one group at least one set of two or more wires that are combinable for representation as a single merged wire, mapping a second layout, via the computing resource, and representing the at least one set of two or more wires as the single merged wire in said second layout, analyzing parasitic capacitance between the at least one target wire and the at least one group of wires using the second layout, and manufacturing the circuit using information from the analyzing of parasitic capacitance.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 6, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert J. Allen, Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ronald D. Rose, David J. Widiger
  • Publication number: 20170206299
    Abstract: A computer-implemented method for extracting a capacitance for a target wire of an integrated circuit includes receiving a design of the integrated circuit having a plurality of wiring layers and selecting a target wire to perform the capacitance extraction. The method further includes determining a first adjacent wiring layer and a second adjacent wiring layer and removing a first subset and a second subset of a plurality of non-adjacent wiring layers from the plurality of wiring layers. The method includes approximating a first plate to be used in the extraction based on the first subset of the plurality of non-adjacent wiring layers and approximating a second plate to be used in the extraction based on the second subset of the plurality of non-adjacent wiring layers and performing the extraction of the target wire based on the first and second adjacent wiring layers and the first and second plates.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 20, 2017
    Inventors: SUSAN E. CELLIER, LEWIS W. DEWEY, III, ANTHONY D. HAGIN, ADAM P. MATHENY, RON D. ROSE, DAVID J. WIDIGER, PATRICK M. WILLIAMS
  • Publication number: 20170169151
    Abstract: Embodiments include methods, processing systems and computer program products for extracting via capacitance. Aspects include placing various shapes of target nets of an IC into a Cshapes collection and a CshapesVia collection, processing the shapes in these collections and placing the processed shapes into a Ctile collection and a CtilesVia collection, and extracting via capacitance of the target nets through each of Cshapes, CshapesVia, Ctiles, and CtilesVia collections. In exemplary embodiments, the processing operation includes: reducing the complexity of the shapes in the shape collections, removing all overhang shapes, and all overlapped shapes from the shape collections, and unioning the shapes in the Cshapes collection and the CshapesVia collection, respectively.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 15, 2017
    Inventors: Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ronald D. Rose, David J. Widiger
  • Publication number: 20170161422
    Abstract: Disclosed is a method for improving capacitance extraction performance in a circuit, the method including mapping, via a computing resource, a first layout including a plurality of wiring paths, selecting at least one target wire from the plurality of wiring paths, selecting at least one group of wires running orthogonally to the at least one target wire, identifying and selecting within the at least one group at least one set of two or more wires that are combinable for representation as a single merged wire, mapping a second layout, via the computing resource, and representing the at least one set of two or more wires as the single merged wire in said second layout, analyzing parasitic capacitance between the at least one target wire and the at least one group of wires using the second layout, and manufacturing the circuit using information from the analyzing of parasitic capacitance.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 8, 2017
    Inventors: Robert J. Allen, Susan E. Cellier, Lewis W. Dewey, III, Anthony D. Hagin, Adam P. Matheny, Ronald D. Rose, David J. Widiger