Patents by Inventor Emil P. Stefanov

Emil P. Stefanov 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).

  • Flip chip light emitting diode with micromesas and a conductive mesh
    Patent number: 7064356
    Abstract: A flip chip light emitting diode (12) includes a light-transmissive substrate (10) with a base semiconducting layer (40) disposed thereupon. A conductive mesh (18) is disposed on the base semiconducting layer (40) and is in electrically conductive contact therewith. Light-emitting micromesas (30) are disposed in openings (20) of the conductive mesh (18). Each light emitting micromesa (30) has a topmost layer (46) of a second conductivity type that is opposite the first conductivity type. A first conductivity type electrode (14) is disposed on the base semiconducting layer (40) and is in electrical communication with the electrically conductive mesh (18). An insulating layer (60) is disposed over the electrically conductive mesh (18). A second conductivity type electrode layer (24) is disposed over the insulating layer (60) and the light-emitting micromesas (30). the insulating layer (60) insulates the second conductivity type electrode layer (24) from the electrically conductive mesh (18).
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: June 20, 2006
    Assignee: GELcore, LLC
    Inventors: Emil P. Stefanov, Hari S. Venugopalan, Bryan S. Shelton, Ivan Eliashevich