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:
May. 17, 2022
Filed:
Jun. 05, 2020
Gigaphoton Inc., Tochigi, JP;
Takanari Kobayashi, Oyama, JP;
Hirokazu Hosoda, Oyama, JP;
Gigaphoton Inc., Tochigi, JP;
Abstract
An extreme ultraviolet light generation system includes: a chamber; a target generation unit; a laser system configured to output a first pre-pulse laser beam, a second pre-pulse laser beam, and a main pulse laser beam so that fluence of the first pre-pulse laser beam is 1.5 J/cmto 16 J/cminclusive at a position where a target is irradiated with the first pre-pulse laser beam; and a control unit configured to control the laser system so that a first delay time from a timing of irradiation of the target with the first pre-pulse laser beam to a timing of irradiation with the second pre-pulse laser beam and a second delay time from the timing of irradiation of the target with the second pre-pulse laser beam to a timing of irradiation with the main pulse laser beam have a following relation:the first delay time<the second delay time.