Patents by Inventor Dale Coder

Dale Coder 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).

  • Efficient method for modeling and simulation of the impact of local and global variation on integrated circuits
    Patent number: 6978229
    Abstract: A computer implemented method for statistical modeling and simulation of the impact of global variation and local mismatch on the performance of integrated circuits, comprises the steps of: estimating a representation of component mismatch from device performance measurements in a form suitable for circuit simulation; reducing the complexity of statistical simulation by performing a first level principal component or principal factor decomposition of global variation, including screening; further reducing the complexity of statistical simulation by performing a second level principal component decomposition including screening for each factor retained in the first level principal component decomposition step to represent local mismatch; and performing statistical simulation with the joint representation of global variation and local mismatch obtained in the second level principal component decomposition step.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: December 20, 2005
    Assignee: PDF Solutions, Inc.
    Inventors: Sharad Saxena, Carlo Guardiani, Philip D. Schumaker, Patrick D. McNamara, Dale Coder