The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2014
Filed:
Dec. 14, 2009
Koji Kamei, Ichihara, JP;
Remi Ohba, Ichihara, JP;
Takashi Hodota, Ichihara, JP;
Toyoda Gosei Co., Ltd., Aichi, JP;
Abstract
A semiconductor light emission element () includes: a substrate (); multi-layered semiconductor layers () including a light emission layer () and layered on the substrate (); a transparent electrode () including an indium oxide and layered on the multi-layered semiconductor layers (); a first junction layer () including tantalum as a valve action metal and layered on the transparent electrode () in such a manner that a side of the first junction layer () being in contact with the transparent electrode () is a tantalum nitride layer or a tantalum oxide layer; and a first bonding pad electrode () layered on the first junction layer () and used for electrical connection with outside. This improves a bonding property of the transparent electrode or the semiconductor layer with the connection electrode and reliability of the electrodes.