Characterizing the interfacial fracture toughness for microelectronic packaging

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Characterizing the interfacial fracture toughness for microelectronic packaging

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dc.contributor.author Chen, Zhong
dc.contributor.author Cotterell, Brian
dc.contributor.author Chen, W. T.
dc.date.accessioned 2012-06-20T01:28:24Z
dc.date.available 2012-06-20T01:28:24Z
dc.date.copyright 1999
dc.date.issued 2012-06-20
dc.identifier.citation Chen, Z., Cotterell, B., & Chen, W. T. (1999). Characterizing the Interfacial Fracture Toughness for Microelectronic Packaging. Surface and Interface Analysis, 28(1), 146-149.
dc.identifier.uri http://hdl.handle.net/10220/8211
dc.description.abstract In a microelectronic package there are many interfaces where the adhesion between different materials plays an important role in its reliability issue. Take an example in a flipchip package: delamination at the interfaces between underfill/passivation, underfill/substrate, etc. will lead to the speeded breakdown of the interconnection. Proper characterization of interfacial adhesion strength is very important for process control as well as reliability prediction. From a fracture mechanics point of view, a strained body with defects will break when the rate of change in its potential energy G reaches a critical value Gc (toughness). In this paper both analytical and experimental descriptions are given on the determination of Gc using single cantilever beam (SCB) specimens. A composite beam on an elastic foundation model is employed to interpret the testing results once the modulus of the foundation is known. The modulus of the foundation can be estimated by analytical approach or deduced from the experimental record. The approach described in our paper is generically suitable for many more interfacial toughness determinations.
dc.language.iso en
dc.relation.ispartofseries Surface and interface analysis
dc.rights © 1999 John Wiley & Sons, Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Surface and Interface Analysis, John Wiley & Sons, Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1002/(SICI)1096-9918(199908)28:1<146::AID-SIA594>3.0.CO;2-N].
dc.subject DRNTU::Engineering::Materials
dc.title Characterizing the interfacial fracture toughness for microelectronic packaging
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1002/(SICI)1096-9918(199908)28:1<146::AID-SIA594>3.0.CO;2-N
dc.description.version Accepted version

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