Optoelectronic semiconductor chip and method for producing an optoelectronic semiconductor chip

US8816353B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Nikolaus Gmeinwieser · Donaustauf, DE
• Matthias Sabathil · Regensburg, DE
• Andreas Leber · Regensburg, DE

Key dates

• Filing date: Nov 2, 2009
• Grant date: Aug 26, 2014
• Expiry date: Jul 13, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/82

Abstract

In at least one embodiment of the optoelectronic semiconductor chip (1), the latter comprises a semiconductor layer sequence (2) comprising at least one active layer (3) designed for generating an electromagnetic radiation. Furthermore, the optoelectronic semiconductor chip (1) has coupling-out structures (4), which are fitted at least indirectly on a radiation passage area (20) of the semiconductor layer sequence (2). In this case, a material of the coupling-out structures (4) is different than a material of the semiconductor layer sequence (2). The refractive indices of the materials of the coupling-out structures (4) and of the semiconductor layer sequence (2) deviate from one another by at most 30%. Furthermore, facets (40) of the coupling-out structures (4) have a total area amounting to at least 30% of an area content of the radiation passage area (20).