Journal of Welding and Joining

  • 제25권3호
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  • Pages.45-50
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  • 2007
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
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언더필 공정에 대한 유동 특성과 침투 시간 예측 연구

Flow Characteristics and Filling Time Estimation for Underfill Process

  • Sim, Hyung-Sub (Graduate School of Mechanical Engineering, Chung-Ang University) ;
  • Lee, Seong-Hyuk (School of Mechanical Engineering, Chung-Ang University) ;
  • Kim, Jong-Min (School of Mechanical Engineering, Chung-Ang University) ;
  • Shin, Young-Eui (School of Mechanical Engineering, Chung-Ang University)
  • 발행 : 2007.06.30
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초록

The present study is devoted to investigate the transient flow and to estimate the filling time fur underfill process by using the numerical model established on the fluid momentum equation. For optimization of the design and selection of process parameters, this study extensively presents an estimation of the filling time in the view points of some important factors related to underfill materials and flip-chip geometry. From the results, we conclude that the filling time changes with respect to the under fill materials because of different viscosity, surface tension coefficient and contact angle. It reveals that, as the gap height increases, the filling time decreases substantially, and goes to the saturated values.

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참고문헌

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