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|Title:||A numerical and experimental study of delamination of polymer-metal interfaces in plastic packages at solder reflow temperatures||Authors:||Tay, A.A.O.
Interfacial fracture mechanics
|Issue Date:||2004||Citation:||Tay, A.A.O.,Ma, Y.,Nakamura, T.,Ong, S.H. (2004). A numerical and experimental study of delamination of polymer-metal interfaces in plastic packages at solder reflow temperatures. Thermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference 2 : 245-252. ScholarBank@NUS Repository.||Abstract:||This paper describes a numerical and experimental study of the failure of polymer-metal interfaces in plastic-encapsulated IC packages subjected to hygrothermal loading during solder reflow. All the analyses performed are under plane strain conditions. A finite element fracture mechanics approach was employed in conjunction with the Interaction Integral Method to predict the temperature at which a small delamination in the polymer-metal interface of an IC package will propagate. In order to confirm the accuracy of the above prediction, actual package specimens were fabricated and subjected to various levels of moisture preconditioning followed by thermal loading at varying temperatures. The specimens were then examined to determine the temperature at which the interface failed. Very good agreement was found between numerical prediction and experiment.||Source Title:||Thermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference||URI:||http://scholarbank.nus.edu.sg/handle/10635/51549|
|Appears in Collections:||Staff Publications|
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