Paper
28 May 2004 200-mW continuous-wave laser source at 198.5 nm for lithographic applications
Andrea Caprara, Stuart Butterworth, Yefim Kil, Tracy Thonn, Keith Hubbard, Alan Macleod, Edward Rea, Colin Seaton, Luis Spinelli
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Abstract
We report on the development and testing of a laser system that delivers up to 200 mW of continuous-wave radiation at 198.54 nm in a near diffraction-limited beam, to be used as a source for photolithography mask writing and mask inspection. The source has been developed with the support of International SEMATECH. The laser output is obtained by intra-cavity sum frequency generation in a CLBO (Cesium Lithium Borate) non-linear crystal
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrea Caprara, Stuart Butterworth, Yefim Kil, Tracy Thonn, Keith Hubbard, Alan Macleod, Edward Rea, Colin Seaton, and Luis Spinelli "200-mW continuous-wave laser source at 198.5 nm for lithographic applications", Proc. SPIE 5377, Optical Microlithography XVII, (28 May 2004); https://doi.org/10.1117/12.535669
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Cited by 3 patents.
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KEYWORDS
Crystals

Laser crystals

Sum-frequency generation

Photomasks

Prototyping

Continuous wave operation

Infrared radiation

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