DOI QR코드

DOI QR Code

RF 마그네트론 스퍼터링법에 의해 합성된 AIN 박막의 공정조건에 따른 우선 배향성 및 평탄성에 관한 연구

A Study on the Orientation and the Roughness with the Deposition Condition of AIN Thin Films Prepared by RF Magnetron Sputtering Method

  • 발행 : 2004.10.01

초록

We fabricated AIN thin film by using RF magnetron sputtering and studied the structural characteristic of AIN thin film with the change of the deposition conditions such as Ar/$N_2$ flow ratio, working pressure, and the distance between substrate and target. The orientation and surface roughness of AIN thin film were studied by using XRD and AFM. We can not identify the orientation of the thin film deposited in Ar, while we obtained the (l00) orientation of the thin film with the addition of $N_2$. Especially, the thin film deposited at 18/2 (seem) of Ar/$N_2$ flow ratio exhibited to be the most (100) oriented. The (100) orientation of thin film becomes weaker as the working pressure becomes higher. The further distance between substrate and target is stronger the (100) orientation of the thin film, but the (100) orientation becomes weaker and (002) orientation started to appear as the distance is shorter. The surface roughness of the thin film deposited at 50$0^{\circ}C$ in Ar only is 1.1 nm, while very smooth thin film of 0.4~0.6 nm is obtained with the addition of $N_2$.

키워드

참고문헌

  1. ]. K. Liu, K. M. Lakin, and K. L. Wang, 'Growth morphology and surface acoustic wave measurements of aln films on sapphire', J. Appl. Phys., Vol. 46, No.9, p.3703, 1975 https://doi.org/10.1063/1.322169
  2. L. G. Pearce, R. L. Gunshor, and R. F. Pierret, 'Aluminum nitride on silicon surface acoustic wave devices', Appl, Phys. Lett., Vol. 39, No. 11, p. 878, 1981 https://doi.org/10.1063/1.92591
  3. Y. Watanabe, Y. Nakamura, S. Hirayama, and Y. Naota, 'Characterization of aluminium nitride thin films', Ceramic International., Vol. 22, p. 509, 1996 https://doi.org/10.1016/0272-8842(95)00127-1
  4. H. P. Laebl, M. Klee, C. Metzmacher, W. Braud, R. Milsom, and P. Lok, 'Piezoelectric thin AIN films for bulk acoustic wave (BAW) resonators', Materials Science and Engineering, Vol. BOO, p. 1, 2002
  5. E. ]. Bienk, H. Jensen, G. N. Pedersen, and S. Sorensen, 'Effect of reactive gas mass flow on the composition and structure of AIN films deposited by reactive sputtering', Thin Solid Films, Vol. 230, p. 121, 1993 https://doi.org/10.1016/0040-6090(93)90503-H
  6. V. I. Dimitrova, D. I. Munova, and D. A. Dechev, 'Study of reactive DC magnetron sputtering deposition of AIN thin films', Vacuum, Vol. 49, No.3, p. 193, 1998 https://doi.org/10.1016/S0042-207X(97)00128-0
  7. B. N. Hwang, C. S. Chen, H. Y. Lu, and T. C. Hsu, 'Growth mechanism of reactively sputtered aluminium nitride thin films', Materials Science and Engineering, Vol. A325, p. 380, 2002
  8. R. G. Gordon and U. Riaz, 'Chemical vapor deposition of aluminium nitride thin films', J. Mater. Res., VoI. 7, No. 7, p, 1679, 1992 https://doi.org/10.1557/JMR.1992.1679
  9. F. Hasegowa, T. Takahashi, K. Kubo, and Y. Nannichi, 'Plasma CVD of amorphous AIN from metalorganic Al source and properties of the deposited films', jpn, J. Appl, Phys., Vol. 26, No. 9, p. 1555, 1987 https://doi.org/10.1143/JJAP.26.1555
  10. H. C. Lee, G. H. Kim, S. K. Hong, K. Y. Lee, Y. ]. Yong, C. H. Chun, and ]. Y. Lee, 'Influence of sputtering pressure on the microstructure evolution of AIN thin films prepared by reactive sputtering', Thin Solid Films, VoI. 261, p. 148, 1995 https://doi.org/10.1016/S0040-6090(95)06530-X
  11. R. Rodriguez-Clemen, B. Aspar, N. Azema, B. Armas, C. Combescure, J. Durand and A. Figueras, 'Morphological properties of chemical vapour deposited AIN films', J. Cryst. Growth., Vol. 133, p. 59, 1993 https://doi.org/10.1016/0022-0248(93)90103-4
  12. 이재빈, 주한용, 이용의, 김형준, '단일 이온빔 스퍼터링법을 이용한 AIN 박막의 증착', 요업학회지, 34권, 2호, p. 209, 1997
  13. M. Ishihara, S. J. Li, H. Yumoto, K. Akashi, and Y. Ide, 'Control of preferential orientation of AIN films prepared by the reactive sputtering method', Thin Solid Films, VoI. 316, p. 152, 1998 https://doi.org/10.1016/S0040-6090(98)00406-4
  14. C. R. Aita, R. ]. Lad, and T. C. Tisone, 'The effect of RF power on sputtered zinc oxide', , Vol. 51, No. 12, p. 5405. 1980
  15. 정성훈, 김영호, 문동찬, 김선태, '고주파 때려내기법에 의한 질화알루미늄 박막의 제작과 특성', 전기전자재료학회논문지, 10권, 7호, p. 706, 1997