US Patent Issued to FOCUS LIGHTINGS TECH on Nov. 25 for "Chip fabrication process for improving LED chip light extraction efficiency with isolation groove and LED chip thereof" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,484,338, issued on Nov. 25, was assigned to FOCUS LIGHTINGS TECH Co. LTD. (Jiangsu, China).

"Chip fabrication process for improving LED chip light extraction efficiency with isolation groove and LED chip thereof" was invented by Xiaoxiong Lin (Jiangsu, China), Yufei Cao (Jiangsu, China), Zhiqiang Chu (Jiangsu, China), Wenguang Huang (Jiangsu, China) and Shuai Wang (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The application discloses a chip fabrication process for improving LED chip light extraction efficiency and an LED chip. The LED chip comprises: a patterned sapphire substrate including a sapphire substrate and an oxide layer provi...