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. 10, 2012
Filed:
May. 23, 2008
Applicants:
Bernd Mayer, Regensburg, DE;
Wolfgang Schmid, Deuerling/Hillohe, DE;
Inventors:
Bernd Mayer, Regensburg, DE;
Wolfgang Schmid, Deuerling/Hillohe, DE;
Assignee:
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor chip () comprises a p-doped region (I) having a cladding layer () and a contact layer () between which a first interlayer () and a second interlayer () are arranged. A concentration of a first material component (B) within the first and the second interlayer () changes in such a way that the band gap varies in a range lying between the band gap of the cladding layer () and the band gap of the contact layer (). A method for producing a semiconductor chip of this type is also disclosed.