Light emitting diode chip

US9577165B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Korbinian Perzlmaier · Regensburg, DE
• Kai Gehrke · Regensburg, DE
• Robert Walter · Parsberg, DE
• Karl Engl · Niedergebraching, DE
• Guido Weiss · Regensburg, DE
• Markus Maute · Alteglofsheim, DE
• Stefanie Rammelsberger · Zeitlarn, DE

Key dates

• Filing date: Aug 23, 2012
• Grant date: Feb 21, 2017
• Expiry date: Mar 30, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/0002

Abstract

A light emitting diode chip includes a semiconductor layer sequence having an active layer that generates electromagnetic radiation, wherein the light emitting diode chip has a radiation exit area at a front side, the light emitting diode chip has a mirror layer at least in regions at a rear side situated opposite the radiation exit area, said mirror layer containing silver, a protective layer is arranged on the mirror layer, and the protective layer comprises a transparent conductive oxide.