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. 17, 2018
Filed:
Aug. 26, 2017
Xiamen Sanan Optoelectronics Technology Co., Ltd., Xiamen, CN;
Jinjian Zheng, Xiamen, CN;
Huanrong Yang, Xiamen, CN;
Feilin Xun, Xiamen, CN;
Shutao Liao, Xiamen, CN;
Zhijie Li, Xiamen, CN;
Mingyue Wu, Xiamen, CN;
Chilun Chou, Xiamen, CN;
Feng Lin, Xiamen, CN;
Shuiqing Li, Xiamen, CN;
Junyong Kang, Xiamen, CN;
XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD., Xiamen, CN;
Abstract
A nitride white-light LED includes: a substrate; an epitaxial layer; an N-type electrode and a P-type electrode; channels are formed on the substrate and the epitaxial layer; temperature isolation layers are formed with low thermal conductivity material thereon to form three independent temperature zones (Zones I/II/III) on a single chip; temperature control layers are formed with high thermal conductivity material on the side wall of the epitaxial layer and the back surface of the substrate at Zones I/II/III, and control temperature of the epitaxial layer and the substrate; based on different thermal expansion coefficients, lattice constants of the nitride and the substrate at Zones I/II/III are regulated to adjust the biaxial stress to which the nitride; quantum wells change conduction band bottom and valence band top positions to change forbidden band widths and light-emitting wavelengths; the LED can emit red, green and blue lights by a single chip.