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:
Nov. 04, 2003
Filed:
Oct. 20, 2000
Michael G. Brown, Valerico, FL (US);
Ivan Eliashevich, South Orange, NJ (US);
Louis A. Koszi, Fogelsville, PA (US);
Emcore Corporation, Somerset, NJ (US);
Abstract
Light emitting diodes such as those formed from gallium nitride based semiconductors are provided with electrode and pad structures which facilitate current spreading. The LED may be formed as a die with a lower contact surface and a mesa projecting upwardly from the lower contact surface. An electrode on the lower contact surface may be in the form of a ring substantially encircling the mesa. In other arrangements, the pad and/or electrode on the lower contact surface is disposed in an indentation on one edge of the mesa whereas the pad on the top of the mesa is disposed adjacent the opposite edge of the mesa.