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:
Aug. 19, 2025
Filed:
Nov. 22, 2022
Quanzhou Sanan Semiconductor Technology Co., Ltd., Fujian, CN;
Huining Wang, Fujian, CN;
Hongwei Xia, Fujian, CN;
Quanyang Ma, Fujian, CN;
Shiwei Liu, Fujian, CN;
Jiali Zhuo, Fujian, CN;
Shuo Yang, Fujian, CN;
Su-Hui Lin, Fujian, CN;
Chung-Ying Chang, Fujian, CN;
Quanzhou Sanan Semiconductor Technology Co. , Ltd, Fujian, CN;
Abstract
A light-emitting device includes an epitaxial structure that includes a first semiconductor layer, an active layer and a second semiconductor layer. The light-emitting device further has a transparent current spreading unit, a first electrode and a second electrode. The transparent current spreading unit includes a first transparent current spreading layer and a second transparent current spreading layer. The first transparent current spreading layer is doped with aluminum and has a thickness that accounts for 0.5% to 33% of a thickness of the transparent current spreading unit. The second transparent current spreading layer has a thickness greater than that of the first transparent current spreading layer. A light-emitting apparatus includes a circuit control component, and a light source that is coupled to the circuit control component and that includes the aforesaid light-emitting device.