한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제19권12호
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  • Pages.1289-1295
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  • 2009
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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LED 공정의 균일 코팅을 위한 초음파 진동자 설계 및 해석

Design and Analysis of Ultrasonic Vibrator for Conformal Coating in LED Packaging

  • 손병호 (인하대학교 대학원 기계공학과) ;
  • 최승복 (인하대학교 기계공학부)
  • 발행 : 2009.12.20
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초록

This paper presents design and analysis of ultrasonic vibrator featuring the piezoelectric actuator. After describing a geometric configuration of the proposed vibrator, an analytical model of the ultrasonic vibrator is formulated by adopting liquid film pattern theory and wave theory. The dynamic analysis and geometric optimization are then undertaken using a software ANSYS. The optimization is performed by taking the amplitude of the tip displacement as an objective function. The fluid flow characteristics of the proposed vibrator are analyzed by taking three different fluids: water, silicon oil and ethylene-glycol. This is achieved using a software FLUENT.

키워드

참고문헌

  1. Dobre, M. and Bolle, L. 1999, 'Visualisation and Analysis of Liquid Film Surface Patterns Formed on Ultrasonic Atomisers,' TILASS-Europe'99
  2. Amin, S. G., Ahmed, M. H. M. and Youssef, H. A., 1995, 'Computer-aided Design of Acoustic Horns for Ultrasonic Machining Using Finite-element Analysis,' J. mater. Process. Technol. pp. 254-260
  3. Dobre, M. and Bolle, L., 1999, 'Theoretical Prediction of Ultrasonic Spray Characteristics Using the Maximum Entropy Formalism,' ILASS-Europe'98
  4. Dobre, M. and Bolle, L., 2002, 'Practical Design of Ultrasonic Spray Devices : Experimental Testing of Several Vibrator Geometries,' Experimental Thermal and Fluid Science, pp. 205-211
  5. Sherrit, S., Dongin, B. P., Bar-Cohen, Y., Pal, D., Kroh, J. and Peterson, T., 1999, 'Modeling of Horns for Sonic/ultrasonic Applications,' Proceedings of IEEE Ultrasonic Symposium, pp. 647-651 https://doi.org/10.1109/ULTSYM.1999.849482
  6. Lang, R. J., 1962, 'Ultrasonic Atomization of Liquids,' J. Acoust. Soc. Am. 34, pp. 6-8 https://doi.org/10.1121/1.1909020
  7. Wang, F. J., Zhao, X. Y., Zhang, D. W. and Wu, Y. I., 2009, 'Development of Novel Ultrasonic Transducers for Microelectronics Packaging,' Journal of Materials Processing Technology, pp. 1291-1301 https://doi.org/10.1016/j.jmatprotec.2008.03.041
  8. Lee, H. S. and Cho, C. D., 2003, 'Finite Element Analysis of a Piezoelectric Actuator,' Proceedings of the KSME Annual Autumn Conference 2003, pp. 1401-1405
  9. Kim, I. K., Hong, S. H. and Lee, S. I., 2008, 'Vibration Analysis of Ultrasonic Horn for Flip-chip Bonding,' Proceedings of the KSNVE Annual Autumn Conference, pp. 364-367

피인용 문헌

  1. Performance Investigation of Piezoelectric Ultrasonic Vibrator for Uniform Atomization Application vol.28, pp.6, 2018, https://doi.org/10.5050/KSNVE.2018.28.6.752