Pulsed light beam spectral feature control

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United States of America Patent

PATENT NO 9772556
SERIAL NO

15435491

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system includes a first actuatable apparatus of an optical source, the first actuatable apparatus being altered within a range of values about a target value to thereby alter a spectral feature of the light beam; a second actuatable apparatus of the optical source, the second actuatable apparatus being altered to thereby alter the spectral feature of the light beam; a metrology system including an observation system configured to output an indication of a deviation between the actual value at which the first actuatable apparatus is operating and the target value; and a control system configured to determine whether the deviation is greater than an acceptable deviation, and, if it is greater than the acceptable deviation, then send a signal to a second actuation module controlling the second actuatable apparatus to adjust the actual value at which the first actuatable apparatus is operating to be closer to the target value.

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Patent Owner(s)

Patent OwnerAddress
CYMER LLC17075 THORNMINT COURT SAN DIEGO CA 92127

International Classification(s)

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  • 2017 Application Filing Year
  • G01J Class
  • 1764 Applications Filed
  • 1425 Patents Issued To-Date
  • 80.79 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahlawat, Rahul San Diego, US 12 45
O'Brien, Kevin M San Diego, US 23 331

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges130493591311421101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 900255075100125150175200225250275300325350375400425450475500525

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