Light emitting device, method of manufacturing the same, light emitting device package and lighting system

US9484496B2 · kind B2 · utility

Assignee

• LG INNOTEK CO., LTD. · KR

Inventors

• Dae Sung Kang · Seoul, KR
• Jung Min Won · Gwangju, KR

Key dates

• Filing date: Jul 21, 2014
• Grant date: Nov 1, 2016
• Expiry date: Jul 21, 2034

Classification

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

Abstract

A light emitting device includes an active layer formed between first and second semiconductor layers. The first semiconductor layer includes a first surface facing the active layer, a second surface opposing the first surface, and a side surface that includes a stepped portion. The stepped portion causes the side surface to extend beyond one of the first surface or second surface of the first semiconductor layer. A light emitting device may also be formed with a buffer layer that includes a stepped portion, and a light emitting device package and system may be formed from the light emitting devices.