Patents by Inventor John Stevenson, deceased

John Stevenson, deceased 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).

  • Methods of fabricating devices and semiconductor layers comprising cadmium mercury telluride, mercury telluride, and cadmium telluride
    Patent number: 7026228
    Abstract: The invention relates to a method of depositing Hg1-xCdxTe onto a substrate, in a MOVPE technique, where 0?x?1; comprising the step of reacting together a volatile organotellurium compound, and one or both of (i) a volatile organocadmium compound and (ii) mercury vapour; characterised in that the organotellurium compound is isopropylallyltelluride. The invention also relates to devices, such as infrared sensors and solar cells, that comprise Hg1-xCdxTe materials.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: April 11, 2006
    Assignee: QinetiQ Limited
    Inventors: Janet E. Hails, Saamara N. Turney, legal representative, David J. Cole-Hamilton, William Bell, Douglas F. Foster, John Stevenson, deceased