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:
Jan. 03, 2012
Filed:
Jul. 27, 2005
Mark Raffetto, Raleigh, NC (US);
Jayesh Bharathan, Cary, NC (US);
Kevin Haberern, Cary, NC (US);
Michael Bergmann, Chapel Hill, NC (US);
David Emerson, Chapel Hill, NC (US);
James Ibbetson, Santa Barbara, CA (US);
Ting LI, Ventura, CA (US);
Mark Raffetto, Raleigh, NC (US);
Jayesh Bharathan, Cary, NC (US);
Kevin Haberern, Cary, NC (US);
Michael Bergmann, Chapel Hill, NC (US);
David Emerson, Chapel Hill, NC (US);
James Ibbetson, Santa Barbara, CA (US);
Ting Li, Ventura, CA (US);
Cree, Inc., Durham, NC (US);
Abstract
A semiconductor based Light Emitting Device (LED) can include a p-type nitride layer and a metal ohmic contact, on the p-type nitride layer. The metal ohmic contact can have an average thickness of less than about 25 Å and a specific contact resistivity less than about 10ohm-cm.