Patents by Inventor Gomez W. Wright

Gomez W. Wright 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).

  • Surface treatment and protection method for cadmium zinc telluride crystals
    Patent number: 7001849
    Abstract: A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 21, 2006
    Assignee: Sandia National Laboratories
    Inventors: Gomez W. Wright, Ralph B. James, Arnold Burger, Douglas A. Chinn
  • Ionizing radiation detector
    Patent number: 6649915
    Abstract: A CdZnTe (CZT) crystal provided with a native CdO dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals is disclosed. A two step process is provided for forming the dielectric coating which includes etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water after attaching electrical contacts to the crystal surface.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: November 18, 2003
    Assignee: Sandia National Laboratories
    Inventors: Gomez W. Wright, Ralph B. James, Arnold Burger, Douglas A. Chinn
  • Surface treatment and protection method for cadmium zinc telluride crystals
    Publication number: 20030148551
    Abstract: A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water.
    Type: Application
    Filed: December 19, 2002
    Publication date: August 7, 2003
    Applicant: Sandia Corporation
    Inventors: Gomez W. Wright, Ralph B. James, Arnold Burger, Douglas A. Chinn
  • Ionizing radiation detector
    Publication number: 20030121885
    Abstract: A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/0 NH4F and 10 w/o H2O2 in water.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 3, 2003
    Inventors: Gomez W. Wright, Ralph B. James, Arnold Burger, Douglas A. Chinn
  • Surface treatment and protection method for cadmium zinc telluride crystals
    Patent number: 6524966
    Abstract: A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: February 25, 2003
    Assignee: Sandia National Laboratories
    Inventors: Gomez W. Wright, Ralph B. James, Arnold Burger, Douglas A. Chinn