Patents by Inventor Abasifreke U. Ebong

Abasifreke U. Ebong 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
    Patent number: 7119372
    Abstract: A flip chip light emitting diode die (10, 10?, 10?) includes a light-transmissive substrate (12, 12?, 12?) and semiconductor layers (14, 14?, 14?) that are selectively patterned to define a device mesa (30, 30?, 30?). A reflective electrode (34, 34?, 34?) is disposed on the device mesa (30, 30?, 30?). The reflective electrode (34, 34?, 34?) includes a light-transmissive insulating grid (42, 42?, 60, 80) disposed over the device mesa (30, 30?, 30?), an ohmic material (44, 44?, 44?, 62) disposed at openings of the insulating grid (42, 42?, 60, 80) and making ohmic contact with the device mesa (30, 30?, 30?), and an electrically conductive reflective film (46, 46?, 46?) disposed over the insulating grid (42, 42?, 60, 80) and the ohmic material (44, 44?, 44?, 62). The electrically conductive reflective film (46, 46?, 46?) electrically communicates with the ohmic material (44, 44?, 44?, 62).
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: October 10, 2006
    Assignee: GELcore, LLC
    Inventors: Edward B. Stokes, Mark P. D'Evelyn, Stanton E. Weaver, Peter M. Sandvik, Abasifreke U. Ebong, Xian-an Cao, Steven F. LeBoeuf, Nikhil R. Taskar