Patents by Inventor David Casimir

David Casimir 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).

  • Heatable interposer for temperature-controlled testing of semiconductor devices
    Patent number: 10197623
    Abstract: A contactor having the top ends of its pogo pins contacting the leads of a semiconductor device package positioned in a handler at controlled temperature, and the bottom ends of the pogo pins contacting the pads of electrically conducting vias extending vertically through a heatable interposer. The heatable interposer has a first and a second surface and includes alternating horizontal layers of thermally conductive material and thermally insulating material, and further one or more heating layers operable to control a temperature profile from the first to the second surface, including a temperature control at the first surface. The via pads at the second interposer surface are in contact with the printed circuit board of a tester.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 5, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Marshall Ryan Worrall, David Casimir Garges, Xu Gao
  • HEATABLE INTERPOSER FOR TEMPERATURE-CONTROLLED TESTING OF SEMICONDUCTOR DEVICES
    Publication number: 20180074118
    Abstract: A contactor having the top ends of its pogo pins contacting the leads of a semiconductor device package positioned in a handler at controlled temperature, and the bottom ends of the pogo pins contacting the pads of electrically conducting vias extending vertically through a heatable interposer. The heatable interposer has a first and a second surface and includes alternating horizontal layers of thermally conductive material and thermally insulating material, and further one or more heating layers operable to control a temperature profile from the first to the second surface, including a temperature control at the first surface. The via pads at the second interposer surface are in contact with the printed circuit board of a tester.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 15, 2018
    Inventors: Marshall Ryan Worrall, David Casimir Garges, Xu Gao
  • Methods and Compositions for Nucleic Acid Analysis
    Publication number: 20080160529
    Abstract: The present invention relates to improved methods and composition for nucleic acid analysis. In particular, the present invention provides improved methods and compositions for carrying out nucleic acid analysis using modified nucleotides.
    Type: Application
    Filed: October 28, 2007
    Publication date: July 3, 2008
    Applicant: Promega Corporation
    Inventors: Mary Ann Brow, David A. Casimir
  • Methods and compositions for nucleic acid analysis
    Patent number: 7282333
    Abstract: The present invention relates to improved methods and composition for nucleic acid analysis. In particular, the present invention provides improved methods and compositions for carrying out nucleic acid analysis using modified nucleotides.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: October 16, 2007
    Assignee: Promega Corporation
    Inventors: Mary Ann Brow, David A. Casimir
  • Methods and compositions for nucleic acid analysis
    Publication number: 20070122839
    Abstract: The present invention relates to improved methods and composition for nucleic acid analysis. In particular, the present invention provides improved methods and compositions for carrying out nucleic acid analysis using modified nucleotides.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Mary Brow, David Casimir
  • Methods and compositions for nucleic acid analysis
    Publication number: 20050084894
    Abstract: The present invention relates to improved methods and composition for nucleic acid analysis. In particular, the present invention provides improved methods and compositions for carrying out nucleic acid analysis using modified nucleotides.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 21, 2005
    Inventors: Mary Brow, David Casimir