Search International and National Patent Collections

1. (WO2017038961) DEEP-ULTRAVIOLET LED AND METHOD FOR MANUFACTURING SAME

Pub. No.:    WO/2017/038961    International Application No.:    PCT/JP2016/075756
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: H01L 33/10
H01L 33/00
H01L 33/32
H01L 33/36
Applicants: MARUBUN CORPORATION
丸文株式会社
TOSHIBA KIKAI KABUSHIKI KAISHA
東芝機械株式会社
RIKEN
国立研究開発法人理化学研究所
ULVAC, INC.
株式会社アルバック
TOKYO OHKA KOGYO CO., LTD.
東京応化工業株式会社
Inventors: KASHIMA Yukio
鹿嶋 行雄
MATSUURA Eriko
松浦 恵里子
KOKUBO Mitsunori
小久保 光典
TASHIRO Takaharu
田代 貴晴
HIRAYAMA Hideki
平山 秀樹
KAMIMURA Ryuichiro
上村 隆一郎
OSADA Yamato
長田 大和
MORITA Toshiro
森田 敏郎
Title: DEEP-ULTRAVIOLET LED AND METHOD FOR MANUFACTURING SAME
Abstract:
A deep-ultraviolet LED having a design wavelength of λ and comprising a reflective electrode layer, an extremely thin-film metal layer, and a p-type contact layer which are disposed in that order from an opposite side from a substrate. The deep-ultraviolet LED further comprises a hemispherical lens which is bonded to a backside of the substrate on the p-type contact layer side and which is transparent to the wavelength λ, and is characterized in that the hemispherical lens has a refractive index which is greater than or equal to an average value of a refractive index of the substrate and a refractive index of air and which is within the refractive index of the substrate, the hemispherical lens having a radius greater than or equal to the radius of the inscribed circle of the substrate and on the order of the radius of the circumscribed circle thereof.