Fatigue of Solder Joints in Surface Mount Devices

@inproceedings{Cotter1988FatigueOS,
  title={Fatigue of Solder Joints in Surface Mount Devices},
  author={Thomas G. Cotter and Lauren Fox},
  year={1988}
}
Lifetime studies of a 16 I/O surface-mounted solder joint array undergoing isothermal cyclic fatigue in torsion shear under fixed plastic strain range show a strong correlation with creep fatigue and a creep-cracking mechanism. Experimental lifetime data follow an inverse dependence on matrix creep. Experimental measurement of the steady-state shear creep rate versus shear stress defines the creep characteristic that is sensitive to changes in metallurgical structure. The amounts of grain… CONTINUE READING

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