Radiation-emitting chip

US6897488B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Johannes Baur · Regensburg, DE
• Dominik Eisert · Regensberg, DE
• Michael Fehrer · Bad Abbach, DE
• Berthold Hahn · Hemau, DE
• Volker Harle · Hemau, DE
• Ulrich Jacob · Regensburg, DE
• Raimund Oberschmid · Sinzing, DE
• Werner Plass · Regensburg, DE
• Uwe Strauss · Bad Abbach, DE
• Johannes Volkl · Erlangen, DE
• Ulrich Zehnder · Regensburg, DE

Key dates

• Filing date: Nov 6, 2001
• Grant date: May 24, 2005
• Expiry date: Nov 6, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/835

Abstract

A light-emitting chip (3) has a lens-type coupling-out window (4), whose base area (5) is provided with a mirror area (6). Arranged on a coupling-out area (7) of the coupling-out window (4) is a layer sequence (9), with a photon-emitting pn junction (10). The photons emitted by the pn junction are reflected at the mirror area (6) and can leave the coupling-out window (4) through the coupling-out area (7).