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:
Apr. 29, 2003
Filed:
Apr. 19, 2001
Toshio Hata, Nara, JP;
Mayuko Fudeta, Nara, JP;
Kensaku Yamamoto, Nara, JP;
Masaki Tatsumi, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A nitride based semiconductor light emitting element includes at least a gallium nitride based compound semiconductor layer of a first conductivity type and a gallium nitride based compound semiconductor layer of a second conductivity type stacked on a substrate. On a main region of the top surface of the semiconductor layer of the second conductivity type, a Pd-containing electrode is formed, and the top surface and side surfaces of the Pd-containing electrode as well as the surface of the semiconductor layer of the second conductivity type in a region of at least a prescribed width from the side surfaces are covered by a conductive shielding film to be shielded from the atmosphere or a mold resin.