Experimental and numerical characterization of non-Fickian moisture diffusion in electronic packages

Emrah Celik, Ibrahim Guven, Erdogan Madenci

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

This study investigates moisture diffusion characteristics of electronic packaging materials exhibiting Fickian and nonFickian behavior. Experimental investigation involves moisture absorption and desorption tests of homogenous underfill materials and inhomogeneous organic substrates as examples of Fickian and non-Fickian solids, respectively. In absorption tests, samples are dried out in an oven prior to testing in a humid environmental chamber. In desorption tests, samples are saturated in the environmental chamber under a specified temperature and relative humidity prior to the moisture desorption inside the oven. Samples in both tests are taken out of the test environments and weighed frequently to obtain moisture weight change data. Using the measurements from testing several different Fickian and non-Fickian materials, diffusivity/moisture concentration relationships are constructed. These relationships are implemented into a customized finite element simulation tool under the ANSYS® platform. Finally, the experimental tests on multi-material specimens are simulated by using this tool in order to establish its validity.

Original languageEnglish (US)
Title of host publicationProceedings - 57th Electronic Components and Technology Conference 2007, ECTC '07
Pages1069-1073
Number of pages5
DOIs
StatePublished - Oct 22 2007
Externally publishedYes
Event57th Electronic Components and Technology Conference 2007, ECTC '07 - Sparks, NV, United States
Duration: May 29 2007Jun 1 2007

Publication series

NameProceedings - Electronic Components and Technology Conference
ISSN (Print)0569-5503

Other

Other57th Electronic Components and Technology Conference 2007, ECTC '07
CountryUnited States
CitySparks, NV
Period5/29/076/1/07

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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