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. 18, 2016
Filed:
Aug. 26, 2015
Advanced Optoelectronic Technology, Inc., Hsinchu Hsien, TW;
Ching-Hsueh Chiu, Hsinchu, TW;
Ya-Wen Lin, Hsinchu, TW;
Po-Min Tu, Hsinchu, TW;
Shih-Cheng Huang, Hsinchu, TW;
ADVANCED OPTOELECTRONIC TECHNOLOGY, INC., Hsinchu Hsien, TW;
Abstract
An epitaxial substrate for growing a lighting emitting structure of a light emitting diode, includes a transparent base, a first buffer layer and a second buffer layer formed on the transparent base. The transparent base includes a first surface and a second surface opposite to the first surface. Plural protrusions are formed on the first surface of the transparent base. Each first buffer layer is formed on the outer surfaces of the plural protrusions. The second buffer layer fills in the recesses defined between two adjacent protrusions, and covers the first buffer layer. The refractive index of the first buffer layer is larger than that of the transparent base, and is less than that of the second buffer layer. This disclosure also relates a method for manufacturing the epitaxial substrate and a light emitting diode having the same.