TY - GEN
T1 - Experimental and numerical characterization of non-Fickian moisture diffusion in electronic packages
AU - Celik, Emrah
AU - Guven, Ibrahim
AU - Madenci, Erdogan
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
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U2 - 10.1109/ECTC.2007.373930
DO - 10.1109/ECTC.2007.373930
M3 - Conference contribution
AN - SCOPUS:35348813672
SN - 1424409853
SN - 9781424409853
T3 - Proceedings - Electronic Components and Technology Conference
SP - 1069
EP - 1073
BT - Proceedings - 57th Electronic Components and Technology Conference 2007, ECTC '07
T2 - 57th Electronic Components and Technology Conference 2007, ECTC '07
Y2 - 29 May 2007 through 1 June 2007
ER -