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Mechanical Properties of in-situ Doped Polycrystalline 3C-SiC Thin Films by APCVD

APCVD로 in-situ 도핑된 다결정 3C-SiC 박막의 기계적 특성

  • 김강산 (울산대학교 전기전자정보시스템공학부) ;
  • 정귀상 (울산대학교 전기전자정보시스템공학부)
  • Published : 2009.03.01

Abstract

This paper describes the mechanical properties of poly (Polycrystalline) 3C-SiC thin films with $N_2$ in-situ doping. In this work, the poly 3C-SiC film was deposited by APCVD (Atmospheric Pressure Chemical Vapor Deposition) method using single-precursor HMDS (Hexamethyildisilane: $Si_2(CH_3)_6)$ at $1200^{\circ}C$. The mechanical properties of doped poly 3C-SiC thin films were measured by nono-indentation according to the various $N_2$ flow rate. In the case of 0 sccm $N_2$ flow rate, Young's Modulus and hardness were obtained as 285 GPa and 35 GPa, respectively. Young's Modulus and hardness were decreased according to increase of $N_2$ flow rate. The crystallinity and surface roughness was also measured by XRD (X-Ray Diffraction) and AFM (Atomic Force Microscopy), respectively.

Keywords

References

  1. J. A. Powell and L. G. Matus, 'Recent developments in SiC', in Proc. 1st Int. Amorphous & crystalline SiC & Related Mat., Germany, p. 2, 1989
  2. G. S. Chung and K. S. Kim, 'Raman scattering characterisics of polycrystalline 3C-SiC thin films deposited on AlN buffer layer', J. of KIEEME(in Korean), Vol. 21, No. 6, p. 493, 2008
  3. M. Li, H. X. Tang, and M. L. Roukes, 'Ultra-sensitive EMS-based cantilevers for sensing, scanned probe and very high- frequency applications', Nature Nano-tech., Vol. 2, p. 114, 2007 https://doi.org/10.1038/nnano.2006.208
  4. J. A. Powell, Neudeck, L. G. Matus, and J. B. Petit, 'Progress in silicon carbide semiconductor technology', in Mmat. Soc. Symp. Proc., Vol. 242, p. 495, 1992 https://doi.org/10.1557/PROC-242-495
  5. M. B. J. Wijesundara, D. Gao, C. Carraro, R. T. Howe, and R. Maboudian, 'Nitrogen doping of polycrystalline 3C-SiC films grown using 1,3-disilabutane in a conventional LPCVD reactor', J. of Crystal Growth, Vol. 259. p. 18, 2003 https://doi.org/10.1016/S0022-0248(03)01573-2
  6. J. Zhang, R. T. Howe, and R. Maboudian, 'Electrical characterization of n-type poly- crystalline 3C-SiC thin films deposited by 1,3-dislabutane', J. Electrochem. Soc., Vol. 153, p. 548, 2006 https://doi.org/10.1149/1.2188327
  7. J. J. Vlassak and W. D. Nix, 'A new bulge test technique for the determination of Young's modulus and poission's ratio of thin films', J. Mat. Res., Vol. 7, p. 3242, 1992 https://doi.org/10.1557/JMR.1992.3242
  8. J. Koskinen, 'Microtensile testing of free standing ploysilicon fibers of various grain sizes', J. Micromech. Microeng., Vol. 3, p. 13, 1993 https://doi.org/10.1088/0960-1317/3/1/004
  9. W. C. Oliver and G. M. Pharr, 'An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments', J. Mat. Res., Vol. 7, p. 1564, 1992 https://doi.org/10.1557/JMR.1992.1564
  10. K. B. Han and G. S. Chung, 'Mechanical characteristics of polycrystalline 3C-SiC thin films using Ar carrier gas by APCVD', J. of the Korean Sen. Soc., Vol. 16, p. 319, 2007 https://doi.org/10.5369/JSST.2007.16.4.319
  11. K. S. Kim and G. S. Chung, 'Characteristics of in-situ doped polycrystalline 3C-SiC thin films for M/NEMS applications', J. of the Korean Sen. Soc., Vol. 17, p. 325, 2008 https://doi.org/10.5369/JSST.2008.17.5.325
  12. M. B. J. Wijesundara, C. R. Stoldt, C. Carraro, R. T. Howe, and R. Maboudian, 'Nitrogen doping of polycrystalline 3C-SiC films grown by single-source chemical vapor deopsition', Thin Solid Films, Vol. 419, p. 69, 2002 https://doi.org/10.1016/S0040-6090(02)00782-4
  13. G. S. Chung, K. S. Kim, and K. B. Han, 'Growth of polycrystalline 3C-SiC thin films using HMDS single precursor', J. of KIEEME(in Korean), Vol. 20, No. 2, p. 156, 2007 https://doi.org/10.4313/JKEM.2007.20.2.156