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. 23, 2014
Filed:
Feb. 23, 2011
Christoph Eichler, Tegernheim, DE;
Teresa Lermer, Regensburg, DE;
Adrian Stefan Avramescu, Regensburg, DE;
Christoph Eichler, Tegernheim, DE;
Teresa Lermer, Regensburg, DE;
Adrian Stefan Avramescu, Regensburg, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
An optoelectronic semiconductor chip, the latter includes a carrier and a semiconductor layer sequence grown on the carrier. The semiconductor layer sequence is based on a nitride-compound semiconductor material and contains at least one active zone for generating electromagnetic radiation and at least one waveguide layer, which indirectly or directly adjoins the active zone. A waveguide being formed. In addition, the semiconductor layer sequence includes a p-cladding layer adjoining the waveguide layer on a p-doped side and/or an n-cladding layer on an n-doped side of the active zone. The waveguide layer indirectly or directly adjoins the cladding layer. An effective refractive index of a mode guided in the waveguide is in this case greater than a refractive index of the carrier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile