Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy

Lin J, Neuhaeusler U, Slieh J, Brechling A, Kleineberg U, Heinzmann U, Oelsner A, Valdaitsev D, Schoenhense G, Weber N, Escher M, et al. (2006)
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 24(6): 2631-2635.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Lin, Jingquan; Neuhaeusler, Ulrich; Slieh, Jawad; Brechling, ArminUniBi; Kleineberg, Ulf; Heinzmann, UlrichUniBi; Oelsner, Andreas; Valdaitsev, Dima; Schoenhense, Gerd; Weber, Nils; Escher, Matthias; Merkel, Michael
Alle
Abstract / Bemerkung
A new method for the actinic inspection of defects inside and on top of extreme ultraviolet (EUV) lithography multi layer-coated mask blanks is presented. The experimental technique is based on photoemission electron microscopy supported by the generation of a standing wave field inside and above the multilayer mask blank when illuminated near the resonance Bragg wavelength at around 13.5 nm. Experimental results on programed defect samples based on electron beam lithographic structures or silica balls overcoated with an EUV multilayer show that buried defects with a lateral size down to 50 nm are detectable. Furthermore, phase structures as shallow as 6 nm in height on a programed phase grating sample have been detected by this technique. The contrast of the phase defect structures has shown to be strongly dependent on and controlled by the phase of the standing wave field at the mask blank surface, and thus can be optimized by tuning the inspection wavelength. (c) 2006 American Vacuum Society.
Erscheinungsjahr
2006
Zeitschriftentitel
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
Band
24
Ausgabe
6
Seite(n)
2631-2635
ISSN
1071-1023
Page URI
https://pub.uni-bielefeld.de/record/1596280

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Lin J, Neuhaeusler U, Slieh J, et al. Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B. 2006;24(6):2631-2635.
Lin, J., Neuhaeusler, U., Slieh, J., Brechling, A., Kleineberg, U., Heinzmann, U., Oelsner, A., et al. (2006). Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 24(6), 2631-2635. doi:10.1116/1.2366607
Lin, J., Neuhaeusler, U., Slieh, J., Brechling, A., Kleineberg, U., Heinzmann, U., Oelsner, A., Valdaitsev, D., Schoenhense, G., Weber, N., et al. (2006). Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 24, 2631-2635.
Lin, J., et al., 2006. Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 24(6), p 2631-2635.
J. Lin, et al., “Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy”, JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, vol. 24, 2006, pp. 2631-2635.
Lin, J., Neuhaeusler, U., Slieh, J., Brechling, A., Kleineberg, U., Heinzmann, U., Oelsner, A., Valdaitsev, D., Schoenhense, G., Weber, N., Escher, M., Merkel, M.: Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B. 24, 2631-2635 (2006).
Lin, Jingquan, Neuhaeusler, Ulrich, Slieh, Jawad, Brechling, Armin, Kleineberg, Ulf, Heinzmann, Ulrich, Oelsner, Andreas, Valdaitsev, Dima, Schoenhense, Gerd, Weber, Nils, Escher, Matthias, and Merkel, Michael. “Actinic extreme ultraviolet lithography mask blank defect inspection by photoemission electron microscopy”. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 24.6 (2006): 2631-2635.

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