Search International and National Patent Collections

1. (WO2018128419) SEMICONDUCTOR DEVICE AND LIGHT EMITTING DEVICE PACKAGE COMPRISING SAME

Pub. No.:    WO/2018/128419    International Application No.:    PCT/KR2018/000186
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Fri Jan 05 00:59:59 CET 2018
IPC: H01L 33/02
H01L 33/22
H01L 33/04
H01L 33/48
H01L 33/00
H01L 33/62
Applicants: LG INNOTEK CO., LTD.
엘지이노텍 주식회사
Inventors: NA, Jong Ho
나종호
KWON, Oh Min
권오민
SONG, June O
송준오
OH, Jeong Tak
오정탁
Title: SEMICONDUCTOR DEVICE AND LIGHT EMITTING DEVICE PACKAGE COMPRISING SAME
Abstract:
An embodiment relates to a semiconductor device and a light emitting device package comprising the same. The semiconductor device according to the embodiment may comprise: a first semiconductor layer; a second semiconductor layer placed on the first semiconductor layer and including V-pits; an active layer placed on the second semiconductor layer; a third semiconductor layer placed on the active layer and having a wider band gap than the active layer; a fourth semiconductor layer placed on the third semiconductor layer and having a narrower band gap than the third semiconductor layer; and a fifth semiconductor layer placed on the fourth semiconductor layer and having a wider band gap than the fourth semiconductor layer, wherein the third semiconductor layer and the fifth semiconductor layer each contain aluminum as an ingredient, and the fifth semiconductor layer has a band gap equal to or wider than the third semiconductor layer. The semiconductor device according to the embodiment can improve the luminous efficiency by not only increasing the hole injection efficiency by the 2DHG effect, but also increasing injection of carriers that are injected through the V-pits.