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. 03, 2016
Filed:
Aug. 22, 2012
Ivar Tångring, Regensburg, DE;
Martin Rudolf Behringer, Regensburg, DE;
Ivar Tångring, Regensburg, DE;
Martin Rudolf Behringer, Regensburg, DE;
OSRAM OPTO SEMICONDUCTORS GMBH, Regensburg, DE;
Abstract
In at least one embodiment, the semiconductor layer sequence () is provided for an optoelectronic semiconductor chip (). The semiconductor layer sequence () contains at least three quantum wells () which are arranged to generate electromagnetic radiation. Furthermore, the semiconductor layer sequence () includes a plurality of barrier layers (), of which at least one barrier layer is arranged between two adjacent quantum wells () in each case. The quantum wells () have a first average indium content and the barrier layers () have a second, smaller, average indium content. A second average lattice constant of the barrier layers () is thereby smaller than a first average lattice constant of the quantum wells ().