Three-Dimensional Creep Analysis of Solder Joints in Surface Mount Devices

Author:

Bhatti Pardeep K.1,Gschwend Klaus1,Kwang Abel Y.1,Syed Ahmer R.1

Affiliation:

1. Delco Electronics Corporation, GM Hughes Electronics, Kokomo, IN 46904

Abstract

Three-dimensional finite element analysis has been applied for determining time-dependent solder joint response of leaded surface mount components under thermal cycling. Two main challenges are the geometric complexity in mesh development and computationally intensive analysis because of the highly nonlinear material properties. Advanced techniques have been applied, including multi-point constraints for mesh transition, which reduces the number of degrees of freedom in the model, and substructuring, which effectively reduces computational time in the iterative analysis. The result is a generic approach for nonlinear creep analysis using commercial FEA software on a high performance workstation. Illustrations are provided for J and gullwing leaded packages.

Publisher

ASME International

Subject

Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials

Reference33 articles.

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3. Engelmaier, W., “Functional Cycling and Surface Mounting Attachment Reliability,” Surface Mount Technology Technical Monograph Series 6984-002, ISHM, 1984, pp. 87–114.

4. Engelmaier W. , “Fatigue Life of Leadless Chip Carrier Solder Joints During Power Cycling,” IEEE Transactions on Components, Hybrids, and Manufacturing Technology, Vol. CHMT-6, No. 3, Sept. 1983, pp. 232–237.

5. Stone, D., Wilson, H., Subrahmanyan, R., and Li, C., “Mechanisms of Damage Accumulation in Solders During Thermal Fatigue,” Proceedings of the 36th Electronic Components Conference, 1986, pp. 630–635.

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