Patents by Inventor Edward Y. Sutcliffe

Edward Y. Sutcliffe 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).

  • Method and solution for etching indium antimonide
    Patent number: 4396459
    Abstract: A method for delineating defects in the <111> surface of an indium antimonide crystal wafer by treating said surface with a 5 percent solution of iodine in N,N-dimethylacetamide to form triangularly shaped etch pits in the defect area.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: August 2, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Paul E. Herning, Edward Y. Sutcliffe
  • Supercool method for producing single crystal mercury cadmium telluride
    Patent number: 4344476
    Abstract: A process for producing single crystal Hg.sub.1-x Cd.sub.x Te is disclosed. An ingot of Hg.sub.1-x cd.sub.x Te is prepared from a stoichiometric mixture of mercury, cadmium and tellurium by the supercooling of a heated mixture thereof from a point above liquidus to a point, a predetermined function of x, below liquidus. The ingot is then quenched in ambient air, producing a large amount of crystallites with small grain boundaries. The subsequent application of heat to the ingot yields a relatively large amount of single crystal material.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: August 17, 1982
    Assignee: Santa Barbara Research Center
    Inventors: Edward Y. Sutcliffe, Roger A. Cole