Method for manufacturing high efficiency light-emitting diodes

Method for manufacturing high efficiency light-emitting diodes 

2016/2/23  Chung Chien-Kai , Yang Ya Lan , Ko Ting-Chia , Ko Tsun-Kai , Hwang Jung-Min , Hon Schang-Jing , Kuo De-Shan , Shen Chien-Fu, Hsu Ta-Cheng , Hsieh Min-Hsun

Abstract A method of manufacturing a light-emitting device comprising the steps of cutting a substrate by a laser beam to form a cavity in the substrate and generate a by-product directly on the substrate by the cutting, and removing the by-product by a chemical solution containing an acid under a predetermined cleaning temperature.

• Link:

http://patft.uspto.gov/netahtml/PTO/search-bool.html

• PATENT/NUMBER

     Utility/9,269,855

• download:

 patent pdf:https://drive.google.com/file/d/0B-Jg2ZDReoWuaUhXT0RhdmdRY0k/view?usp=sharing