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:
May. 10, 2011
Filed:
May. 30, 2007
Berthold Hahn, Hemau, DE;
Ulrich Jacob, Regensburg, DE;
Hans-jürgen Lugauer, Wenzenbach, DE;
Manfred Mundbrod-vangerow, Oxenbronn, DE;
Berthold Hahn, Hemau, DE;
Ulrich Jacob, Regensburg, DE;
Hans-Jürgen Lugauer, Wenzenbach, DE;
Manfred Mundbrod-Vangerow, Oxenbronn, DE;
OSRAM GmbH, Munich, DE;
Abstract
A light-emitting diode chip () comprises a GaN-based, radiation-emitting epitaxial layer sequence (), an active region (), an n-doped layer () and a p-doped layer (). The p-doped layer () is provided, on its main surface () facing away from the active region (), with a reflective contact metallization () comprising a radioparent contact layer () and a reflective layer (). Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.