Patents by Inventor Wei Michael Tian

Wei Michael Tian 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).

  • Methods, systems, and computer program products for implementing an electronic design using voltage-based electrical analyses and simulations with corrections
    Patent number: 10395000
    Abstract: Various embodiments implement an electronic design with one or more electrical analyses or simulations. Pre-layout and/or post-layout design data of an electronic design or a portion thereof may be identified at a physical design implementation module. A first stage analysis may be performed on the electronic design or the portion thereof at least by computing electrical characteristics with a reduced representation in the electronic design or the portion thereof. Electrical behavior of the electronic design or the portion thereof may be generated at least by performing a second stage analysis on the electronic design or the portion thereof with one or more adjusted electrical characteristics. The electronic design or the portion thereof may then be implemented based in part or in whole upon the one or more electrical analyses or simulations.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 27, 2019
    Assignee: Cadence Design Systems, Inc.
    Inventors: John Yanjiang Shu, Wei Michael Tian, Richard J. O'Donovan
  • Methods, systems, and computer program products for implementing an electronic design with time varying resistors in power gating analysis
    Patent number: 10216887
    Abstract: Various embodiments implement an electronic design with power gate analyses using time varying resistors. Design data of an electronic design or a portion thereof may be identified at an electronic design implementation module. First stage electrical characteristics may be generated at least by performing a first stage electrical analysis on a reduced representation of the electronic design or the portion thereof. Second stage electrical characteristics may further be generated at least by performing a second stage electrical analysis on a parasitic injected representation of the electronic design or the portion thereof with a time-varying model for the power gate. The electronic design or the portion thereof may then be further implemented based in part or in whole upon the one or more electrical analyses or simulations.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 26, 2019
    Assignee: Cadence Design Systems, Inc.
    Inventors: John Yanjiang Shu, Wei Michael Tian, Richard J. O'Donovan
  • Method and system for performing fast electrical analysis and simulation of an electronic design for power gates
    Patent number: 8954917
    Abstract: A system, method, and computer program product is disclosed for performing electrical analysis of a circuit design. A voltage-based approach is described for performing two-stage transient EM-IR drop analysis of an electronic design. A two-stage approach is performed in some embodiments, in which the first stage operates by calculating the voltage at certain interface nodes. In the second stage, simulation is performed to simulate the circuit to concurrently obtain the current at the interface nodes. In some embodiments, multiple adjacent devices as identified as interface devices for purposes of the analysis. One situation where it may be useful to analyze a larger portion of the circuitry in this way where the analysis is being performed on a netlist having a power gate.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: February 10, 2015
    Assignee: Cadence Design Systems, Inc.
    Inventors: John Yanjiang Shu, Wei Michael Tian, An-Chang Deng