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:
Apr. 10, 2012
Filed:
Mar. 11, 2009
John Adam Edmond, Durham, NC (US);
David Beardsley Slater, Jr., Baskerville, VA (US);
Jayesh Bharathan, Cary, NC (US);
Matthew Donofrio, Raleigh, NC (US);
John Adam Edmond, Durham, NC (US);
David Beardsley Slater, Jr., Baskerville, VA (US);
Jayesh Bharathan, Cary, NC (US);
Matthew Donofrio, Raleigh, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
A light emitting diode is disclosed having a vertical orientation with an ohmic contact on portions of a top surface of the diode and a mirror layer adjacent the light emitting region of the diode. The diode includes an opening in the mirror layer beneath the geometric projection of the top ohmic contact through the diode that defines a non-contact area between the mirror layer and the light emitting region of the diode to encourage current flow to take place other than at the non-contact area to in turn decrease the number of light emitting recombinations beneath the ohmic contact and increase the number of light emitting recombinations in the more transparent portions of the diode.