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:
Jul. 26, 2022
Filed:
Sep. 03, 2018
Osram Oled Gmbh, Regensburg, DE;
Alexander Tonkikh, Regensburg, DE;
Britta Göötz, Regensburg, DE;
OSRAM OLED GMBH, Regensburg, DE;
Abstract
A light-emitting semiconductor device () comprising a semiconductor layer sequence () based on a phosphide and/or arsenide compound semiconductor material system is specified, wherein—the semiconductor layer sequence () comprises a light-emitting semiconductor layer (), which is embodied to emit light during operation of the semiconductor device (), between a first cladding layer () and a second cladding layer (), and at least a first semiconductor protection layer (), the first semiconductor protection layer () is arranged inside the first cladding layer (), wherein the first cladding layer is formed as an outer layer, or the first semiconductor protection layer is arranged as an outer layer directly on the first cladding layer () on a side remote from the light-emitting semiconductor layer (), and the first semiconductor protection layer () has a lower aluminum content than the first cladding layer.