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. 13, 2005
Filed:
Apr. 07, 2003
Yuka Yamada, Kawasaki, JP;
Takehito Yoshida, Kawasaki, JP;
Nobuyasu Suzuki, Kawasaki, JP;
Toshiharu Makino, Kawasaki, JP;
Toshihiro Arai, Tokyo, JP;
Kazuhiko Kimoto, Ishinomaki, JP;
Yuka Yamada, Kawasaki, JP;
Takehito Yoshida, Kawasaki, JP;
Nobuyasu Suzuki, Kawasaki, JP;
Toshiharu Makino, Kawasaki, JP;
Toshihiro Arai, Tokyo, JP;
Kazuhiko Kimoto, Ishinomaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An optoelectronic material, device applications, and methods for manufacturing the optoelectronic material are provided to make it possible to obtain stable characteristics without deterioration of luminescence over time in the atmosphere. The optoelectronic material is composed of a porous silicon the surface of which is nitrided to form a silicon nitride layer thereon. This allows a stable electroluminescence to be obtained, without oxidation of the surface of the porous silicon.