Please use this identifier to cite or link to this item: https://doi.org/10.1117/12.425353
Title: Determining the most likely site and mode of thermomechanical failure in multi-material systems
Authors: Tay, A.A.O. 
Lee, K.H. 
Zhou, W.
Lim, K.M. 
Keywords: Stress singularity
Thermomechanical failure sites
Variable-order boundary element method
Issue Date: 2001
Source: Tay, A.A.O., Lee, K.H., Zhou, W., Lim, K.M. (2001). Determining the most likely site and mode of thermomechanical failure in multi-material systems. Proceedings of SPIE - The International Society for Optical Engineering 4408 : 368-380. ScholarBank@NUS Repository. https://doi.org/10.1117/12.425353
Abstract: A methodology for predicting sites and modes of thermomechanical failure in IC and MEMS packages is developed. Singular stress fields around several stress concentration locations in a typical plastic-encapsulated IC package are calculated using special variable-order singular boundary elements and the singular value decomposition method. The strain energy density distributions around all the stress concentration locations are then obtained from the singular stress fields and compared. The most likely failure site as the temperature of the package is raised is then determined as well as the likely modes of failure, ie interfacial delamination or cracking of mold compound.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/73330
ISSN: 0277786X
DOI: 10.1117/12.425353
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