Patents by Inventor Elizabeth Lagnese

Elizabeth Lagnese 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).

  • Snap-to valid pattern system and method
    Patent number: 10803221
    Abstract: Described is a method for implementing a snap to capability that enables the manufactured of a valid pattern in a semiconductor device, based upon an originally invalid pattern.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: October 13, 2020
    Assignee: PDF Solutions, Inc.
    Inventors: Elizabeth Lagnese, Jonathan Haigh
  • IC chips containing a mixture of standard cells obtained from an original set of design rules and enhanced standard cells that are a substantially uniform variant of the original set of design rules and methods for making the same
    Patent number: 10622344
    Abstract: The present invention relates to IC chips containing a mixture of standard cells obtained from an original set of design rules and enhanced standard cells that are a variant of the original set of design rules and methods for making the same.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: April 14, 2020
    Assignee: PDF SOLUTIONS, INC.
    Inventors: Jonathan Haigh, Elizabeth Lagnese
  • Standard cell design conformance using boolean assertions
    Patent number: 10565344
    Abstract: Disclosed techniques conform standard cells in an integrated circuit design into a valid template pattern using a template-based approach to standard cell design. The template architecture stores valid patterns of circuit elements for the design. A Boolean expression comprising an aggregated set of Boolean assertions can be generated for each different combination of cell shape features and edge locations with the cell design to compute a solution that matches with a valid pattern in one of the templates. If the solution evaluates to a Boolean TRUE result, the cell shape(s) can be modified in accordance with the solution. If not, the granularity can be updated by incrementing an “adjustment neighborhood” value and iterating the computations for shape features and edge locations using the updated values for the analysis until a Boolean TRUE result is found or it is determined there is no solution for the set of expressions.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 18, 2020
    Assignee: PDF Solutions, Inc.
    Inventor: Elizabeth Lagnese
  • Method for automatically determining proposed standard cell design conformance based upon template constraints
    Patent number: 10102330
    Abstract: Described is a method for automatically determining proposed standard cell design conformance based upon template constraints.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: October 16, 2018
    Assignee: PDF Solutions, Inc.
    Inventors: Elizabeth Lagnese, Jonathan Haigh
  • Snap-to valid pattern system and method
    Patent number: 9870441
    Abstract: Described is a method for implementing a snap to capability that enables the manufactured of a valid pattern in a semiconductor device, based upon an originally invalid pattern.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: January 16, 2018
    Assignee: PDF Solutions, Inc.
    Inventors: Elizabeth Lagnese, Jonathan Haigh
  • IC chips containing a mixture of standard cells obtained from an original set of design rules and enhanced standard cells that are a substantially uniform variant of the original set of design rules and methods for making the same
    Patent number: 9704846
    Abstract: The present invention relates to IC chips containing a mixture of standard cells obtained from an original set of design rules and enhanced standard cells that are a variant of the original set of design rules and methods for making the same.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 11, 2017
    Assignee: PDF Solutions, Inc.
    Inventors: Jonathan Haigh, Elizabeth Lagnese