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. 06, 2015
Filed:
Dec. 03, 2013
Lextar Electronics Corporation, Hsinchu, TW;
Wei-Chang Yu, Kaohsiung, TW;
Chien-Cheng Chang, Zhudong Township, TW;
Chih-Sheng Hsu, Sanwan Township, TW;
LEXTAR ELECTRONICS CORPORATION, Hsinchu, TW;
Abstract
A method of manufacturing a light emitting diode (LED) substrate includes following steps: providing a nano-patterned substrate, which has a plurality of convex portions and a plurality of first concave portions that are spaced apart from each other, wherein each first concave portion has a depth (d1); forming a plurality of protection structures to cover each convex portion, and exposing a bottom surface of each first concave portion; performing an anisotropic etching processing to etch the bottom surface of each first concave portion which is not covered by the protection structure so as to form a plurality of second concave portions having a depth (d2), and d2 is greater than d1.