Development of Auto Positioning Laser System by using Image Measurement Data

영상 측정 데이터를 이용한 위치보정 레이저 가공시스템 개발

  • Pyo, Chang-Ryul (Department of Mechanical and Automotive Engineering INDUK University)
  • Published : 2013.06.30

Abstract

Recently, electronic equipments become smaller, more functional, and more complex than before. As these trends, MLC(multi-layer ceramic) circuit has been emerged to a promising technology in semiconductor inspection industry. Especially, multi-layer ceramic which is consisted of many fine-pitch multi-hole is used to produce a semiconductor inspection unit. The hole is processed by UV laser. But, working conditions are changed all the time. Therefore real time measurement of fine-pitch multi-hole is very important method for ensuring performance. In this paper we found the best method for illuminating and auto focusing. And, we verified our equipment.

Keywords

References

  1. C.R. Pyo, S.M. Yang, S.H. Kang, S.M. Yoon, "Development of Green-Sheet Measurement Algorithm by Image Processing Technique," Transactions of Materials Processing, Vol. 16, No. 4, pp. 313-316, 2007. https://doi.org/10.5228/KSPP.2007.16.4.313
  2. A. Goshtasby and H. L. Shyu, "Edge detection by curve fitting," Image and Vision Computing, Vol. 13, pp. 169-177, 1995. https://doi.org/10.1016/0262-8856(95)90837-X
  3. K. Kawahara, Y. Shidama, T. Muyazaki, Y. Nakamura,H, Yamaura, "Image processing with topology and mathematical morphology," IEICE Trans.D_II, No.1. pp. 166-174, 1997.
  4. Petros Maragos, "Tutorial on advances in morphological image processing and analysis," Optical Engineering, vol.26, no.7, pp. 623-623, 1987.
  5. Frei, W., and Chen, C. C., "Fast boundary detection: A Generalization and a New Algorithm," IEEE Trans Computers, Vol. C-26, No. 10, pp. 988-998, 1977. https://doi.org/10.1109/TC.1977.1674733
  6. M. Subbarao, T. Choi and A.Nikzad, "Focusing Techniques," Optical Engineering, vol.32, no.11, pp. 2824-2836, 1993. https://doi.org/10.1117/12.147706