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. 21, 2010
Filed:
Nov. 02, 2005
Kensaku Yamamoto, Osaka, JP;
Kensaku Yamamoto, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A light emitting device including a III-V group compound semiconductor includes a first stacked body and a second stacked body. The first stacked body includes a III-V group compound semiconductor stacked body, and a reflection layer, a first diffusion suppressing layer and a first metal layer formed on one main surface of the III-V group compound semiconductor stacked body. The second stacked body includes a semiconductor substrate and a second metal layer. The first stacked body and the second stacked body are joined by the first metal layer and the second metal layer, and by the first diffusion suppressing layer, diffusion of atoms between the reflection layer and the first metal layer is suppressed. Therefore, a III-V group compound semiconductor device having high efficiency of light emission to the outside per chip and manufacturing method thereof can be provided.