EUV radiation from nitrogen capillary discharge

0431262 - ÚFP 2015 RIV SG eng C - Conference Paper (international conference)
Frolov, Oleksandr - Koláček, Karel - Štraus, Jaroslav - Schmidt, Jiří
EUV radiation from nitrogen capillary discharge.
International Journal of Modern Physics: Conference Series. Vol. 32. Singapore: World Scientific Publishing Co, 2014, "1460329-1 "-"1460329-7". ISSN 2010-1945.
[International Conference on Plasma Science and Applications, ICPSA 2013. Singapore (SG), 04.12.2013-06.12.2013]
R&D Projects: GA MŠMT(CZ) LG13029
Institutional support: RVO:61389021
Keywords : EUV radiation * capillary discharge * EUV source * Z-pinch
Subject RIV: BL - Plasma and Gas Discharge Physics
http://www.worldscientific.com/doi/abs/10.1142/S2010194514603299

In the last decade EUV sources attract interest from researchers over the world. One of the main motivations is EUV lithography, which could lead to further miniaturization in electronics. Nitrogen recombination laser at wavelength of 13.4 nm based on capillary discharge Z-pinch configuration could be used in experiments with testing of resolution of photoresist for EUV lithography (close to wavelength of 13.5 nm Si/Mo multilayer mirrors have a high reflectivity at normal incidence angles). In this work,pinching of nitrogen-filled capillary discharge is studied for the development of EUV laser,which is based on recombination pumping scheme.The goal of this study is achieving the required plasma conditions using a capillary discharge Z-pinch apparatus.In experiments with nitrogen,the capillary length was shortened from 232 mm to 90 mm and current quarter-period was changed from 60 ns to 50 ns in contrast with early experiments with Ne-like argon laser.EUV radiation from capillary
Permanent Link: http://hdl.handle.net/11104/0235835