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:
Aug. 01, 2017
Filed:
Jul. 22, 2014
Osram Opto Semiconductors Gmbh, Regensburg, DE;
Ivar Tångring, Regensburg, DE;
Felix Ernst, Mainz, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
An optoelectronic semiconductor chip includes a p-type semiconductor region, an n-type semiconductor region, and an active layer embodied as a multi-quantum well structure arranged between the p-type semiconductor region and the n-type semiconductor region. The multi-quantum well structure includes a plurality of alternating quantum well layers and barrier layers. At least one barrier layer, which is arranged closer to the p-type semiconductor region than to the n-type semiconductor region, is a high barrier layer that has an electronic band gap that is greater than an electronic band gap of the remaining barrier layers.