An investigation of the flip-chip bonding process for application in MEMS devices was carried out. Finite element analyses of axisymmetric and non-axisymmetric solder joint geometries were performed. It was found that in typical cases of MEMS devices in which the solder volume is small where is the Bond number), the finite element solution of the axisymmetric solder joint is well approximated by a surface of revolution whose generating meridian is a circular arc. Experimental results of solder joints in flip-chip assembly were found to correlate well with simulation results.
Issue Section:
Technical Papers
1.
Harsh
, K. F.
, Su
, B. Z.
, Zhang
, W. G.
, Bright
, V. M.
, and Lee
, Y. C.
, 2000
, “The Realization and Design Considerations of a Flip-Chip Integrated MEMS Tunable Capacitor
,” Sens. Actuators A
, 80
(2
), pp. 108
–118
.2.
Salalha, W., Zussman, E., Meltser, M., and Kaldor, S., 2000, “Prediction of Yield for Flip-chip Packaging,” Proc. of the 10th CIRP Design Seminar, Israel, pp. 259–263.
3.
Finn, H., 1990, Equilibrium Capillary Surfaces, Springer-Verlag, NY.
4.
Goldmann
, L. S.
, 1969
, “Geometric Optimization of Controlled Collapse Interconnections
,” IBM J. Res. Dev.
, 13
, pp. 251
–265
.5.
Heinrich
, S. M.
, Schaefer
, M.
, Schoroeder
, S. A.
, and Lee
, P. S.
, 1996
, “Prediction of Solder Joint Geometries in Array-Type Interconnects
,” ASME J. Electron. Packag.
, 118
(3
), pp. 114
–121
.6.
Chiang
, K. N.
, and Chen
, W. L.
, 1998
, “Electronic Packaging Reflow Shape Prediction for the Solder Mask-Defined Ball Grid Array
,” ASME J. Electron. Packag.
, 120
(2
), pp. 175
–178
.7.
Katyl
, R. H.
, and Primbley
, W. T.
, 1992
, “Shape and Force Relationships for Molten Axisymmetric Solder Connections
,” ASME J. Electron. Packag.
, 114
(3
), pp. 336
–341
.8.
Patra
, S. K.
, and Lee
, Y. C.
, 1991
, “Quasi-Static Modeling of the Self-Alignment-Part 1: Single Solder Joint
,” ASME J. Electron. Packag.
, 113
(3
), pp. 337
–342
.9.
Patra
, S. K.
, Sritharan
, S. S.
, and Lee
, Y. C.
, 1995
, “Quantitative Characterization of Flip-Chip Solder Joints
,” ASME J. Appl. Mech.
, 62
(2
), pp. 390
–397
.10.
Brakke
, K.
, 1992
, “The Surface Evolver
,” Exp. Mech.
, 1
, pp. 141
–165
.11.
Nigro
, N. J.
, Zhou
, F. J.
, Heinrich
, S. M.
, Elkouh
, A. F.
, Fournelle
, R. A.
, and Lee
, P. S.
, 1998
, “Parametric Finite Element Method for Predicting Shapes of Three-Dimensional Solder Joints
,” ASME J. Electron. Packag.
, 118
(3
), pp. 142
–147
.12.
Subbarayan
, G.
, 1996
, “A Procedure for Automated Shape and Life Prediction in Flip-Chip and BGA Solder Joints
,” ASME J. Electron. Packag.
, 118
(3
), pp. 127
–133
.13.
Salalha, W., Zussman, E., and Bar-Yoseph, P. Z., 2002, “Modeling and Simulation of Flip-Chip Bonding,” Technical Report, TME # 476, Faculty of Mechanical Engineering, Technion—Israel Institute of Technology, Haifa, Israel.
14.
Myshkis, A. D., Babskii, V. G., Kopachevskii, N. D., Solobozhanin, L. A., and Tyuptso, A. D., 1986, Low-Gravity Fluid Mechanics, Springer-Verlag, NY.
15.
Lau, J. H., 1995, Flip Chip Technologies, McGraw-Hill, NY.
16.
Jang
, S.-Y.
, and Paik
, K.-W.
, 1998
, “Eutectic Sn/Pb Solder Bump and Under Bump Metallurgy: Interfacial Reactions and Adhesion
,” Soldering & Surface Mount Technology
, 10
(3
), pp. 29
–37
.Copyright © 2004
by ASME
You do not currently have access to this content.