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:
Jul. 12, 2011
Filed:
Jan. 26, 2007
Hideyoshi Horie, Ibaraki-ken, JP;
Hideyoshi Horie, Ibaraki-ken, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
Provided is a compound light emitting device which facilitates easy connection of power supply lines, and has a high emission intensity in-plane uniformity. The light emitting device includes a first-conduction-type cladding layer, active layer structure, and second-conduction-type cladding layer each containing a III-V compound semiconductor. The first-conduction-type cladding layer and second-conduction-type cladding layer sandwich the active layer structure. The light emitting device includes a first-conduction-type-side electrode () for injecting carriers into the first-conduction-type cladding layer, and a second-conduction-type-side electrode () for injecting carriers into the second-conduction-type cladding layer. The first-conduction-type-side electrode () has an opening (). The second-conduction-type-side electrode () has a main-electrode-portion (-) partially surrounded by the first-conduction-type-side electrode (), and extracting portions (--) for extracting the main-electrode-portion (-) outside the first-conduction-type-side electrode () though the opening (). The main-electrode-portion (-) is a part of a constant-width figure. The interval between the outer edge of the main-electrode-portion (-) and the inner edge of the first-conduction-type-side electrode () is almost constant.