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. 05, 2013
Filed:
May. 16, 2008
Yoshinobu Kawaguchi, Mihara, JP;
Takeshi Kamikawa, Mihara, JP;
Yoshinobu Kawaguchi, Mihara, JP;
Takeshi Kamikawa, Mihara, JP;
Sharp Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
The present invention provides a light emitting device loaded with a light emitting semiconductor chip with a protective film formed on a light emitting portion, in which the protective film contains a first dielectric film formed of aluminum oxynitride, a second dielectric film formed of silicon nitride or silicon oxynitride, and a third dielectric film formed of an oxide or a fluoride, the first dielectric film is located more toward the light emitting portion than the second dielectric film, and the second dielectric film is located more toward the light emitting portion than the third dielectric film, and a manufacturing method of the light emitting device.