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:
Feb. 23, 2010
Filed:
Mar. 01, 2007
Kenichi Ohashi, Kanagawa, JP;
Yasuharu Sugawara, Kanagawa, JP;
Shuji Itonaga, Kanagawa, JP;
Yasuhiko Akaike, Kanagawa, JP;
Kenichi Ohashi, Kanagawa, JP;
Yasuharu Sugawara, Kanagawa, JP;
Shuji Itonaga, Kanagawa, JP;
Yasuhiko Akaike, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor light emitting device comprises: a substrate; a semiconductor stacked structure; a first electrode; a second electrode; and a reflective film. The substrate has a top face and a rear face electrode forming portion opposed thereto, and is translucent to light in a first wavelength band. The rear face electrode forming portion is surrounded by a rough surface. The semiconductor stacked structure is provided on the top face of the substrate and includes an active layer that emits light in the first wavelength band. The first electrode is provided on the semiconductor stacked structure, and the second electrode is provided on the rear face electrode forming portion. The reflective film is coated on at least a portion of the rough surface.