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:
Dec. 02, 2014
Filed:
Apr. 08, 2010
Applicants:
Nikolaus Gmeinwieser, Obertraubling, DE;
Berthold Hahn, Hemau, DE;
Inventors:
Nikolaus Gmeinwieser, Obertraubling, DE;
Berthold Hahn, Hemau, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/66 (2006.01); G01R 31/26 (2014.01); H01L 33/08 (2010.01); H01L 33/24 (2010.01); H01L 33/22 (2010.01);
U.S. Cl.
CPC ...
H01L 33/08 (2013.01); H01L 33/22 (2013.01); H01L 33/24 (2013.01);
Abstract
An optoelectronic semiconductor chip includes a semiconductor layer sequence. The semiconductor layer sequence contains at least one active layer for generating primary radiation. In addition, the semiconductor layer sequence includes a plurality of conversion layers, the conversion layers being designed to absorb the primary radiation at least partially and to convert it into secondary radiation of a longer wavelength than the primary radiation. Furthermore the semiconductor layer sequence comprises a roughening which extends at least into the conversion layers.