Patents by Inventor Jeffrey E. VanCleve

Jeffrey E. VanCleve 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).

  • Patent number: 4906968
    Abstract: A cermet thin film resistor having small particles of a refractory metal embedded in a ceramic insulator at compositions near the percolation transition. The cermets are produced by co-deposition in a dual-electron beam evaporator. The refractory metal is typically Mo or Pt. The insulator is typically a Al.sub.2 O.sub.3, although other insulators, for example SiO.sub.2 may be used. Deposition occurs onto a suitable substrate such as a sapphire under an oxygen environment, typically 10.sup.-5 Torr O.sub.2 with the stage heated in the range of typically 400.degree. C. Such is done to increase the size of the metallic regions. The microstructure is 10-50 .ANG. embedded metal in the ceramic. The resulting films are in the range of 1500 .ANG. thick which provides a film having a typical resistivity of 400 m.OMEGA. - cm which may then be patterned using lithography techniques to form two or four terminal resistors.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: March 6, 1990
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Neil Gershenfeld, Watt W. Webb, Jeffrey E. VanCleve, Joseph V. Mantese, Eric T. Swartz