ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,733, issued on Jan. 27, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).
"Stealth dicing laser device" was invented by Akinori Okubo (Hwaseong-si, South Korea), Youngchul Kwon (Asan-si, South Korea), Sungho Jang (Yongin-si, South Korea), Jungchul Lee (Hwaseong-si, South Korea) and Deoksuk Jang (Pyeongtaek-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stealth dicing laser device including: a pulse laser generator configured to generate laser light; a condenser lens formed in an optical path of the laser light; a pupil filter configured to transform a phase of the laser light before the laser light passes throug...