Patents by Inventor Victor G. Weizer

Victor G. Weizer 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).

  • Multi-junction photovoltaic cell
    Patent number: 6660928
    Abstract: A solar cell comprising a substrate, a buffer layer, a first subcell, a second subcell, and a third subcell, where said first subcell, said second subcell, and said third subcell are lattice matched, and where said substrate is lattice mismatched with said first, second, and third subcells.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: December 9, 2003
    Assignee: Essential Research, Inc.
    Inventors: Martin O. Patton, Samar Sinharoy, Victor G. Weizer
  • Low resistance contacts for shallow junction semiconductors
    Patent number: 5294834
    Abstract: A method of enhancing the specific contact resistivity in InP semiconductor devices and improved devices produced thereby are disclosed. Low resistivity values are obtained by using gold ohmic contacts that contain small amounts of gallium or indium and by depositing a thin gold phosphide interlayer between the surface of the InP device and the ohmic contact. When both the thin interlayer and the gold-gallium or gold-indium contact metallizations are used, ultra low specific contact resistivities are achieved. Thermal stability with good contact resistivity is achieved by depositing a layer of refractory metal over the gold phosphide interlayer.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: March 15, 1994
    Assignee: Sverdrup Technology, Inc.
    Inventors: Navid S. Fatemi, Victor G. Weizer