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:
Oct. 03, 2023
Filed:
Jun. 29, 2021
Nichia Corporation, Anan, JP;
Eiji Muramoto, Tokushima, JP;
Maki Fujimoto, Anan, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
A method of manufacturing a light-emitting element includes: providing a semiconductor structure including: a first layer containing gallium and nitrogen, a second layer of a first conductive type, the second layer containing gallium, aluminum, and nitrogen and being located on or above the first layer, an active layer located on or above the second layer, and a third layer of a second conductive type, the third layer located on or above the active layer, wherein a thickness of the first layer is larger than a thickness of the second layer; performing chemical-mechanical polishing from a first layer side to reduce the thickness of the first layer; and performing dry etching from the first layer side to remove the first layer and reduce the thickness of the second layer.