Patents by Inventor David N. Powers

David N. Powers 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: 10402524
    Abstract: Methods according to the disclosure include: predicting process-sensitive geometries (PSGs) in a proposed IC layout based on violations of a set of processing constraints for the proposed IC layout, the set of processing constraints being calculated with a predictive model based on a training data repository having a plurality of optical rule check (ORC) simulations for different IC layouts; identifying actual PSGs in a circuit manufactured using the proposed IC layout; determining whether the predicted PSGs correspond to the actual PSGs in the manufactured circuit as being correct; in response to the predicting being incorrect: adjusting the predictive model based on the actual PSGs, wherein the adjusting includes submitting additional ORC data to the training data repository; and flagging the proposed IC layout as incorrectly predicted; and in response to the predicting being correct, flagging the proposed IC layout as correctly predicted.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: September 3, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Liang Cao, Jie Zhang, David N. Power, Eric S. Parent
  • Publication number: 20180322234
    Abstract: Methods according to the disclosure include: predicting process-sensitive geometries (PSGs) in a proposed IC layout based on violations of a set of processing constraints for the proposed IC layout, the set of processing constraints being calculated with a predictive model based on a training data repository having a plurality of optical rule check (ORC) simulations for different IC layouts; identifying actual PSGs in a circuit manufactured using the proposed IC layout; determining whether the predicted PSGs correspond to the actual PSGs in the manufactured circuit as being correct; in response to the predicting being incorrect: adjusting the predictive model based on the actual PSGs, wherein the adjusting includes submitting additional ORC data to the training data repository; and flagging the proposed IC layout as incorrectly predicted; and in response to the predicting being correct, flagging the proposed IC layout as correctly predicted.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 8, 2018
    Inventors: Liang Cao, Jie Zhang, David N. Power, Eric S. Parent
  • Patent number: 5692489
    Abstract: A system and method for a motorized repeating toy gun. The toy gun includes a base having a first end and a second end upon which elastic rings are stretched and mounted. The toy gun also includes a motor and a spool. The spool has a wrapping portion, is rotatably mounted on the base and is rotatably responsive to the motor. Additionally, the toy gun includes a string. A first portion of the string is positioned around the wrapping portion. A second portion of the string is interwovenly positioned between the second end and each of the elastic rings. The string forcibly wrapped around the spool in response to the operation of the motor, causing the elastic rings to dismount from the second end. Elastic rings, e.g., rubber bands, are loaded onto a base, e.g.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: December 2, 1997
    Assignee: Matthew D. Swanson
    Inventors: Matthew D. Swanson, David N. Powers