Extreme ultraviolet light generation system utilizing a variation value formula for the intensity

US9072152B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9072152-B2
Application numberUS-201213523446-A
CountryUS
Kind codeB2
Filing dateJun 14, 2012
Priority dateMar 29, 2010
Publication dateJun 30, 2015
Grant dateJun 30, 2015

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Abstract

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An apparatus used with a laser apparatus may include a chamber, a target supply for supplying a target material to a region inside the chamber, a laser beam focusing optical system for focusing a laser beam from the laser apparatus in the region, and an optical system for controlling a beam intensity distribution of the laser beam.

First claim

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What is claimed is: 1. An apparatus comprising: a chamber; a target supply for supplying a target material to a region inside the chamber; a focusing optical system for focusing a laser beam on the region, the laser beams including (1) a pre-pulse laser beam with which the target material is irradiated and (2) a main pulse laser beam with which the target material is irradiated subsequent to the pre-pulse laser beam; a laser apparatus configured to generate the pre-pulse las…

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What does patent US9072152B2 cover?
An apparatus used with a laser apparatus may include a chamber, a target supply for supplying a target material to a region inside the chamber, a laser beam focusing optical system for focusing a laser beam from the laser apparatus in the region, and an optical system for controlling a beam intensity distribution of the laser beam.
Who is the assignee on this patent?
Wakabayashi Osamu, Yanagida Tatsuya, Gigaphoton Inc
What technology area does this patent fall under?
Primary CPC classification H05G2/0086. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).