Light-emitting diode device

US9337408B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Thomas Feichtinger · Graz, AT
• Sebastian Brunner · Graz, AT
• Oliver Dernovsek · Lieboch, AT
• Klaus-Dieter Aichholzer · Wolfsberg, AT
• Georg Krenn · Graz, AT
• Axel Pecina · St. Martin, AT
• Christian Faistauer · Hall in Tirol, AT

Key dates

• Filing date: Jul 22, 2013
• Grant date: May 10, 2016
• Expiry date: Jul 22, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/8585

Abstract

A light-emitting diode device has a first carrier and at least one light-emitting diode chip, which is arranged on the first carrier. The first carrier has at least one first and one second carrier part, wherein the light-emitting diode chip rests only on the first carrier part. Furthermore, the first and second carrier parts each have a thermal conductivity. The thermal conductivity of the first carrier part is at least 1.5 times the thermal conductivity of the second carrier part. The first carrier part is surrounded laterally by the second carrier part.