EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM
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United States of America Patent
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app pub date -
Dec 19, 2014
filing date -
Jun 22, 2012
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Abandoned
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Abstract
The extreme ultraviolet light generation system may be configured to irradiate a target with a first pulse laser beam and a second pulse laser beam to turn the target into plasma thereby generating extreme ultraviolet light. The system may include a chamber having at least one aperture configured to introduce the first pulse laser beam and the second pulse laser beam; a target supply device configured to supply the target to a predetermined region in the chamber; a first laser apparatus configured to output the first pulse laser beam with which the target in the chamber is to be irradiated, the first pulse laser beam having pulse duration less than 1 ns; and a second laser apparatus configured to output the second pulse laser beam with which the target which has been irradiated with the first pulse laser beam is to be further irradiated.
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