Chin. J. Semicond. > 2006, Volume 27 > Issue 9 > 1695-1700

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Thermal Fatigue Life Time Prediction of Sn-3.5Ag Lead-Free SolderJoint for Chip Scale Package

Han Xiao, Ding Han, Sheng Xinjun and Zhang Bo

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Abstract: The thermal fatigue life time of Sn-3.5Ag lead-free solder joint of a chip scale package subjected to a thermal cycling load is predicted.Using the finite element analysis software ANSYS,a three dimensional symmetric model of the chip scale package is established,which uses the Anand constitutive model to describe the viscoplastic material property of Sn-3.5Ag lead-free solder joints.The deformation of the CSP package and the stress-strain variation of the solder joint under a thermal cycling load are investigated through thermal stress analysis.The Darveaux fatigue life prediction method is used to calculate the fatigue life time of the lead-free solder joint based on the finite element simulation results.

Key words: chip scale packagelead-free solder jointAnand constitutive modelfatigue lifefinite element analysis

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    Received: 18 August 2015 Revised: 02 March 2006 Online: Published: 01 September 2006

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      Han Xiao, Ding Han, Sheng Xinjun, Zhang Bo. Thermal Fatigue Life Time Prediction of Sn-3.5Ag Lead-Free SolderJoint for Chip Scale Package[J]. Journal of Semiconductors, 2006, 27(9): 1695-1700. ****Han X, Ding H, Sheng X J, Zhang B. Thermal Fatigue Life Time Prediction of Sn-3.5Ag Lead-Free SolderJoint for Chip Scale Package[J]. Chin. J. Semicond., 2006, 27(9): 1695.
      Citation:
      Han Xiao, Ding Han, Sheng Xinjun, Zhang Bo. Thermal Fatigue Life Time Prediction of Sn-3.5Ag Lead-Free SolderJoint for Chip Scale Package[J]. Journal of Semiconductors, 2006, 27(9): 1695-1700. ****
      Han X, Ding H, Sheng X J, Zhang B. Thermal Fatigue Life Time Prediction of Sn-3.5Ag Lead-Free SolderJoint for Chip Scale Package[J]. Chin. J. Semicond., 2006, 27(9): 1695.

      Thermal Fatigue Life Time Prediction of Sn-3.5Ag Lead-Free SolderJoint for Chip Scale Package

      • Received Date: 2015-08-18
      • Accepted Date: 2006-01-20
      • Revised Date: 2006-03-02
      • Published Date: 2006-10-12

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