Patents by Inventor Ernest L. Stelzer

Ernest L. Stelzer 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).

  • Ohmic contacts to p-type mercury cadmium telluride
    Patent number: 4085500
    Abstract: Ohmic contacts to p-type mercury cadmium telluride are prepared by depositing a Column IB metal on a surface of the p-type mercury cadmium telluride, depositing a buffer material on the Column IB metal, and contacting the buffer material with a bonding material which is capable of alloying with the Column IB metal. The buffer material prevents alloying between the Column IB metal and the bonding material.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: April 25, 1978
    Assignee: Honeywell Inc.
    Inventors: Robert J. Hager, Eric S. Johnson, M. Walter Scott, Ernest L. Stelzer
  • Ohmic contacts to p-type mercury cadmium telluride
    Patent number: 4000508
    Abstract: Ohmic contacts to p-type mercury cadmium telluride are prepared by depositing a Column IB metal on a surface of the p-type mercury cadmium telluride, depositing a buffer material on the Column IB metal, and contacting the buffer material with a bonding material which is capable of alloying with the Column IB metal. The buffer material prevents alloying between the Column IB metal and the bonding material.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: December 28, 1976
    Assignee: Honeywell Inc.
    Inventors: Robert J. Hager, Eric S. Johnson, M. Walter Scott, Ernest L. Stelzer
  • Mercury cadmium telluride annealing procedure
    Patent number: 3979232
    Abstract: The stoichiometry and free-carrier concentration of mercury cadmium telluride is adjusted by a heat treatment. Mercury cadmium telluride is heat treated in the presence of mercury and cadmium vapor.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: September 7, 1976
    Assignee: Honeywell Inc.
    Inventors: Robert J. Hager, Joseph L. Schmit, M. Walter Scott, Ernest L. Stelzer
  • Heat treatment of mercury cadmium telluride
    Patent number: 3963540
    Abstract: The stoichiometry and free-carrier concentration of mercury cadmium telluride is adjusted by a heat treatment. Mercury cadmium telluride is slowly cooled from a temperature near the solidus temperature to room temperature in the presence of constituent vapor. The mercury cadmium telluride is maintained at the lowest temperature within the capsule during cooling.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: June 15, 1976
    Assignee: Honeywell Inc.
    Inventors: Russell J. Camp, Jr., Maurice L. Hitchell, Joseph L. Schmit, Ernest L. Stelzer
  • Monolithic photoconductive detector array
    Patent number: 3949223
    Abstract: A photoconductive detector array is formed in a single body of semiconductor material. The individual photoconductive detectors are formed by regions of first conductivity type. The bulk of the semiconductor body is of a second conductivity type, thereby electrically isolating the individual photoconductive detectors from one another. This detector array is easier to fabricate than prior art detector arrays, and has unique signal enhancement properties.
    Type: Grant
    Filed: November 1, 1973
    Date of Patent: April 6, 1976
    Assignee: Honeywell Inc.
    Inventors: Joseph L. Schmit, Ernest L. Stelzer