A Numerical Model to Analyze Thermal Behavior of a Radiative Heater Disigned for Flip-Chip Bonders

플립칩 본더용 가열기의 열특성 해석을 위한 수치모델

  • 이상현 (금오공과대학교 대학원 기계공학과) ;
  • 곽호상 (금오공과대학교 기계공학부) ;
  • 한창수 (기계연구원) ;
  • 류도현 ((주)탑엔지니어링 기술연구소)
  • Published : 2003.12.01

Abstract

This study presents a numerical model to analyze dynamic thermal behavior of a hot chuck designed for flip-chip bonders. The hot chuck of concern is a heater which has been specifically developed for accomplishing high-speed and ultra-precision soldering. The characteristic features are radiative heat source and the heating tool made of a material of high thermal diffusivity. A physical modeling has been conducted for the network of heat transport. A simplified finite volume model is deviced to simulate time-dependent thermal behavior of the heating tool on which soldering is achieved. The reliability of the proposed numerical model is verified experimentally. A series of numerical tests illustrate the usefulness of the numerical model in design analysis.

Keywords

References

  1. Schlitichting, H., Boundary Layer Theory, McGraw-Hill, Korea (1986)
  2. Cengel, Y.A., Heat Transfer: A Prcticat Approach, McGraw-Hill, (1996)
  3. Tumer, T.L., 'Numerical and Experimental Analysis of the Radiant Net Flux Produced by Quartz Heating Systems,' NASA Technical Paper No.3387, Langley Research Center, Virginia (1994)
  4. Sparrow, E.M., 'A New and Simpler Formulation for Radiative Angle Factors,' Trans. ASME J. Heat Transfer, Vo1.85, (1963), p.81
  5. Robinson, S.B. and Liburdy, J.A., 'Prediction of the Natural Convective Heat Transfer from a Horizontal Heated Disk,'Trons. ASME J. Heat Transfer, Vo1.109, (1987), p. 906
  6. Fishenden, M. and Saunders, O.A., An introduction to Heat Transfer, Clarendon Press, Oxford, (1968), P.89
  7. Al-Arabi M. and El-Riedy, M.K., 'Natural Convection Heat transfer from Isothermal Hohzontal Plates of Different Shapes,' Int. J. Heat Mass Transfer, Vo1.19, (1976), p.1399
  8. Yousef, W.W. and Tarasuk, J.D., 'Free Convection Heat Transfer from UPWard- Facing Isothermal Horizontal Surfaces,' Trans. ASME J. Heat Transfer, Vo1.104, (1982), 0.493
  9. Swartz, E.T. and Pohl, R.O., 'Thermal Boundary Resistance,' Rev. Modem Phys. Vo1.61, (1989), 0.605
  10. Patankar, S.V., NumericaI Heat Transfer and Ftuid Ftow, McGraw-Hi11,(1980)