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. 17, 2012
Filed:
Feb. 20, 2008
Applicants:
Shin Hiraoka, Ushiku, JP;
Hiroaki Okagawa, Ushiku, JP;
Takahide Joichi, Ushiku, JP;
Inventors:
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract
A first conductive film-of a light-transmissive conductive oxide filmand a positive pad electrodeare electrically connected through a second conductive film-of the light-transmissive conductive oxide filmin a GaN-based LED element. A contact resistance of the light-transmissive conductive oxide filmwith a p-type layer-in a first contact portionA is lower than in a second contact portionB, so that a current supplied from the positive pad electrodeto the p-type layer-through the conductive oxide filmflows to the p-type layer-mainly through the first contact portionA.