Browse > Article
http://dx.doi.org/10.4191/KCERS.2002.39.8.807

Computer Simulation of Mo/Si Thin Film Characteristics for EUVL Technology  

Lee, Young-Tae (Department of Ceramic Engineering, Hanyang University)
Chung, Yong-Chae (Department of Ceramic Engineering, Hanyang University)
Publication Information
Abstract
In this work, we investigated the deposition behavior of Mo/Si multilayer thin film structures simulated by a PVD process simulator based on Monte Carlo method to assist the optimized fabrication of the high quality mask in EUVL(Extreme Ultra-Violet Lithography) process. The shape of simulated thin film structures turned out to be largely dependent on the gas pressure(1∼30 mTorr), the target-substrate distance(1∼30 cm) and the diffusion length(1∼10 nm). From the simulation studies, it was predicted that relatively uniform thin film structures can be fabricated by decreasing gas pressure and increasing the target-substrate distance.
Keywords
Mo/Si thin film; EUVL; Monte Carlo simulation; PVD process; SIMBAD;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. W. Gwyn, R. Stullen, D. Sweeney and D. Attwood, 'Extreme Ultraviolet Lithography,' J. Vac. Sci. Technol. B, 16 [61 3142-49 (1998)   DOI
2 R. H. Stulen and D. W. Sweeney, 'Extreme Ultraviolet Lithography,' IEEE J. Quantum Electron., 35 [5] 694-99 (1999)   DOI   ScienceOn
3 B. S. Bollepalli, M. Khan and F. Cerrina, 'Imaging Prop-erties of the Extreme Ultraviolet Mask,' J. Vac. Sci. Technol. B, 16 [6] 3444-48 (1998)   DOI   ScienceOn
4 M. Singh and J. J. M. Braat, 'Design of Multilayer Extreme -Ultraviolet Mirrors or Enhanced Reflectivity,' App. Opt., 39 [13] 2189-97 (2000)   DOI   ScienceOn
5 D. E. Kim, D. H. Cha and S. W. Lee, 'Optimized Structures of Multilayer Soft X-ray Reflectors in the Spectral Range of 30 to 300$\AA$,' Jpn. J. Appl. Phys., 37 [5] 2728-33 (1998)   DOI
6 S. K. Dew, T. Smy and M. J. Brett, 'Simulation of Elevated Temperature Aluminum Metallization Using SIMBAD,' IEEE Trans. on Electron. Dev., 39 [7]1599-606 (1992)   DOI   ScienceOn
7 A. T. Voutsas and M. K. Hatalis, 'Structure of As-deposited LPCVD Silicon Films as Low Deposition Temperatures and Pressures,' J. Electrochem. Soc., 139 [9] 2659-65 (1992)   DOI
8 R. K. Waits, 'Planar Magnetron Sputtering,' J. Vac. Soc. Technol., 15 [2] 179-86 (1978)   DOI   ScienceOn
9 M. Ohring, The Materials Science of Thin Films; Vol. 1, pp. 79-145, Academic Press, New York. 1992
10 Y. J. Lee and S. Baik, 'Effects of Deposition Parameters on MgO Thin Films on Si(lOO) Substrates by Reactive RF Magnetron Sputtering,' J. Kor. Ceram. Soc., 31 [6] 643-50 (1994)