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FINITE ELEMENT ANALYSIS ON THE EFFECT OF (有限元分析的影响)
Journal of Engineering Science and Technology
Vol. 9, No. 1 (2014) 47 - 63
© School of Engineering, Taylor’s University
FINITE ELEMENT ANALYSIS ON THE EFFECT OF SOLDER
JOINT GEOMETRY FOR THE RELIABILITY OF BALL GRID
ARRAY ASSEMBLY WITH FLEXIBLE AND RIGID PCBS
CHUN-SEAN LAU*, M. Z. ABDULLAH, M. ABDUL MUJEEBU,
N. MD. YUSOP
School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus,
14300 Nibong Tebal, Penang, Malaysia
*Corresponding Author: chun_sean@
Abstract
In the present study, threedimensional (3D) finite element simulation on 132
PIN fleXBGATM package was performed to predict the effect of solder joint
geometry on the reliability of Ball Grid Array (BGA) solder joints on flexible
and rigid PCBs subjected to thermocyclic loading. The commercial FEA tool
ABAQUS Version 6.9 was used for the simulations of various shapes of solder
joints such as barrel, column and hourglass. Apart from a global modeling, the
submodeling analysis technique (local modeling) was also used on the critically
affected solder joints, in order to enhance the computation efficiency. The
accumulated creep strain and stra
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