The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2008
Filed:
Aug. 21, 2007
David B. Slater, Jr., Raleigh, NC (US);
Robert C. Glass, Chapel Hill, NC (US);
Charles M. Swoboda, Morrisville, NC (US);
Bernd Keller, Goleta, CA (US);
James Ibbetson, Goleta, CA (US);
Brian Thibeault, Santa Barbara, CA (US);
Eric J. Tarsa, Goleta, CA (US);
David B. Slater, Jr., Raleigh, NC (US);
Robert C. Glass, Chapel Hill, NC (US);
Charles M. Swoboda, Morrisville, NC (US);
Bernd Keller, Goleta, CA (US);
James Ibbetson, Goleta, CA (US);
Brian Thibeault, Santa Barbara, CA (US);
Eric J. Tarsa, Goleta, CA (US);
Cree, Inc., Durham, NC (US);
Abstract
Light emitting diodes include a substrate having first and second opposing faces and that is transparent to optical radiation in a predetermined wavelength range and that is patterned to define, in cross-section, a plurality of pedestals that extend into the substrate from the first face towards the second face. A diode region on the second face is configured to emit light in the predetermined wavelength range, into the substrate upon application of voltage across the diode region. A mounting support on the diode region, opposite the substrate is configured to support the diode region, such that the light that is emitted from the diode region into the substrate, is emitted from the first face upon application of voltage across the diode region. A reflector is provided between the mounting support and the diode region, that is configured to reflect light that is emitted from the diode region back into the diode region, through the substrate that is transparent to optical radiation in the predetermined wavelength range and from the plurality of pedestals, upon application of voltage across the diode region. A layer of Indium Tin Oxide (ITO) is provided between the reflector and the diode region.