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http://dx.doi.org/10.3795/KSME-A.2009.33.4.380

The Effect of Finite Element Models in Thermal Analysis of Electronic Packages  

Choi, Nam-Jin (충북대학교 대학원 기계공학과)
Joo, Jin-Won (충북대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.33, no.4, 2009 , pp. 380-387 More about this Journal
Abstract
The reliability concerns of solder interconnections in flip chip PBGA packages are produced mainly by the mismatch of coefficient of thermal expansion(CTE) between the module and PCB. Finite element analysis has been employed extensively to simulate thermal loading for solder joint reliability and deformation of packages in electronic packages. The objective of this paper is to study the thermo-mechanical behavior of FC-PBGA package assemblies subjected to temperature change, with an emphasis on the effect of the finite element model, material models and temperature conditions. Numerical results are compared with the experimental results by using $moir{\acute{e}}$ interferometry. Result shows that the bending displacements of the chip calculated by the finite element analysis with viscoplastic material model is in good agreement with those by $moir{\acute{e}}$ inteferometry.
Keywords
FC-PBGA Package; Thermal Deformation Analysis; Finite Element Model; Viscoplastic Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 1
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