Please use this identifier to cite or link to this item: https://doi.org/10.1109/96.330428
Title: Predicting delamination in plastic IC packages and determining suitable mold compound properties
Authors: Tay, A.A.O. 
Tan, G.L. 
Lim, T.B. 
Issue Date: May-1994
Citation: Tay, A.A.O., Tan, G.L., Lim, T.B. (1994-05). Predicting delamination in plastic IC packages and determining suitable mold compound properties. IEEE transactions on components, packaging, and manufacturing technology. Part B, Advanced packaging 17 (2) : 201-208. ScholarBank@NUS Repository. https://doi.org/10.1109/96.330428
Abstract: This paper proposes that the critical stress intensity factor obtained in an adhesion test between the leadframe and the mold compound can be used as a criterion for predicting delamination. A finite element stress analysis of the adhesion test determines the critical stress intensity factor KIIC corresponding to the measured maximum strength. Delamination between the leadframe chip pad and the mold compound occurs when the maximum stress intensity value, KII for the package exceeds the critical value KIIC. The validity of the proposed criterion was verified by experiments on different plastic SOJ packages molded with different molding compounds under different moisture conditions. These findings suggest that for any new IC package, an optimised package design together with a mold compound with the necessary properties that will not result in delamination can be defined on the outset of any new package development. The results of this work can be used to avoid exhaustive experimental trials, enabling savings in both time and cost in new package development. They can also be used to set directions for mold compound manufacturers on the requirements of compounds for future generation IC devices.
Source Title: IEEE transactions on components, packaging, and manufacturing technology. Part B, Advanced packaging
URI: http://scholarbank.nus.edu.sg/handle/10635/92771
ISSN: 10709894
DOI: 10.1109/96.330428
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