# A modelling approach for coupling numerical analytical techniques applied in microsystems

Xue, Xiangdong, Lu, Hua and Bailey, Christopher
(2007)
*A modelling approach for coupling numerical analytical techniques applied in microsystems.*
ICEPT: 2007 8th International Conference On Electronics Packaging Technology, Proceedings.
Institute of Electrical and Electronics Engineers, Inc., New York, pp. 204-211.
ISBN 9781424413911
(doi:10.1109/ICEPT.2007.4441412)

## Abstract

In this paper, a method for the integration of several numerical analytical techniques that are used in microsystems design and failure analysis is presented. The analytical techniques are categorized into four groups in the discussion, namely the high-fidelity analytical tools, i.e. finite element (FE) method, the fast analytical tools referring to reduced order modeling (ROM); the optimization tools, and probability based analytical tools. The characteristics of these four tools are investigated. The interactions between the four tools are discussed and a methodology for the coupling of these four tools is offered. This methodology consists of three stages, namely reduced order modeling, deterministic optimization and probabilistic optimization. Using this methodology, a case study for optimization of a solder joint is conducted. It is shown that these analysis techniques have mutual relationship of interaction and complementation. Synthetic application of these techniques can fully utilize the advantages of these techniques and satisfy various design requirements. The case study shows that the coupling method of different tools provided by this paper is effective and efficient and it is highly relevant in the design and reliability analysis of microsystems

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