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U.S. Department of Energy
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Frequency-stabilized line-narrowed excimer laser source system for high resolution lithography

Patent ·
OSTI ID:6542181
This patent describes an excimer laser source system emitting radiation characterized by a wavelength with a high degree of stability and by a narrow spectral bandwidth. It comprises: a frequency-stabilized reference laser system of a wavelength different from the wavelength of the excimer laser source system; a resonator system stabilized by locking its cavity spacing to the wavelength of the reference laser system; an excimer laser oscillator, another detector and another locking electronics system.
Assignee:
NOV; NOV-90-030072; EDB-90-157972
Patent Number(s):
A; US 4881231
Application Number:
PPN: US s 7-277028
OSTI ID:
6542181
Country of Publication:
United States
Language:
English

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