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. 13, 2011
Filed:
Nov. 21, 2006
Berthold Hahn, Hemau, DE;
Ralph Wirth, Pettendorf-Adlersberg, DE;
Tony Albrecht, Bad Abbach, DE;
Magnus Ahlstedt, Regensburg, SE;
Stefan Illek, Deonaustauf, DE;
Klaus Streubel, Laaber, DE;
Berthold Hahn, Hemau, DE;
Ralph Wirth, Pettendorf-Adlersberg, DE;
Tony Albrecht, Bad Abbach, DE;
Magnus Ahlstedt, Regensburg, SE;
Stefan Illek, Deonaustauf, DE;
Klaus Streubel, Laaber, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Abstract
An LED chip is specified that comprises at least one current barrier. The current barrier is suitable for selectively preventing or reducing, by means of a reduced current density, the generation of radiation in a region laterally covered by the electrical connector body. The current spreading layer contains at least one TCO (Transparent Conductive Oxide). In a particularly preferred embodiment, at least one current barrier is contained which comprises material of the epitaxial semiconductor layer sequence, material of the current spreading layer and/or an interface between the semiconductor layer sequence and the current spreading layer. A method for producing an LED chip is also specified.