Varification of Phase Defect Correctability of Nano-structured Multilayer for EUV Reflection

  • Lee, Seung-Yoon (Division of Materials Science and Engineering, Hanyang University) ;
  • Kim, Tae-Geun (Division of Materials Science and Engineering, Hanyang University) ;
  • Jinho Ahn (Division of Materials Science and Engineering, Hanyang University)
  • 발행 : 2003.10.01

초록

Ru interfacial layer was inserted into Mo-on-Si interface to enhance the extreme ultra-violet (EUV) reflective multilayer properties. The stacking status and optical properties are analyzed using cross-sectional transmission electron microscope (TEM), and reflectometer. About 1.5% of maximum reflectivity can be acquired as predicted in optical simulation, which is thought to be originated from the diffusion inhibition property. Phase defect correctability of the multilayer can be enhanced by the insertion of Ru barrier layer.

키워드

참고문헌

  1. C. Montcalm, S. Bajt, P. B. Mirkarimi, E. Spiller, F. J. Weber, and J. A. Folta, Proc. of SPIE 3331 (1998) 42 https://doi.org/10.1117/12.309600
  2. K. S. Kim, S. Y. Lee, C. M. Park, and J. Ahn, J Korea Phys. Soc. 37, 1067 (2000) https://doi.org/10.3938/jkps.37.1067
  3. C. M. Park, T. H. Lee, J. N. Cheon, S. Y. Lee Y. D. Kim, and J. Ahn, J. Korea Phys. Soc. 40, 156 (2002)
  4. Y. J. Lee, W. J. Lee, K. J. Chun, J. Korea Phys. Soc. 40, 720 (2002) https://doi.org/10.3938/jkps.40.720
  5. J. P. Silverman, J. Vac. Sci. Technol. B 15, 2117 (1997) https://doi.org/10.1116/1.589231
  6. S. D. Berger, J. M. Gibson, R. M. Camarda, R. C. Farrow, H. A. Huggins, J. S. Kraus, and J. A. Liddle, J. Vac. Sci. Technol. B 9, 2996 (1991) https://doi.org/10.1116/1.585356
  7. L. R. Harriot, J. Vac. Sci. Technol. B 15, 2130 (1997) https://doi.org/10.1116/1.589339
  8. St. Braun, H. Mai, M. Moss, R. Scholz, and A. Leson, Jpn. J. Appl. Phys. 41, 4074, (2002) https://doi.org/10.1143/JJAP.41.4074
  9. S. Y. Lee, S. M. Hur, H. J. Kim, C. S. Yoon, Y. T. Lee, I. Y. Kang, Y.-C. Chung, M. Yi, C. K Ok, O. Kim, and J. Ahn, Jpn. J. Appl. Phys. 41, 4086 (2002) https://doi.org/10.1143/JJAP.41.4086
  10. D. W. Sweeney, Danid Stearns, and Paul Mirkarimi, 3rd Int. Work. on EUVL, Matsue, Japan, 38, (2001)