A parametric study of thermal stress and analysis of creep strain under thermal cyclic loading in a hybrid quad flat package

Zhou, Ding and Haseeb, A.S. Md. Abdul and Andriyana, Andri and Wong, Yew Hoong and Sabri, Mohd Faizul Mohd and Low, B.Y. and Pang, X.S. and Eu, Poh Leng and Tan, L.C. (2021) A parametric study of thermal stress and analysis of creep strain under thermal cyclic loading in a hybrid quad flat package. IEEE Transactions on Components, Packaging and Manufacturing Technology, 11 (3). pp. 435-443. ISSN 2156-3950, DOI https://doi.org/10.1109/TCPMT.2020.3046750.

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Abstract

Due to the variation of temperature during service, the leads in quad flat packages (QFP) and plastic leaded chip carrier (PLCC) undergo high thermal stress, which can lead to large deformation and failure. Thus, the prediction of thermal stress and strain distributions is a prerequisite for reliability analysis of such components. Along this line, this work analyzed the performances for gull wing and J-lead with different geometries. The thermal stress and strain distributions of both leads were determined by using the finite-element method (FEM). For each type of the lead, a parametric study was conducted in order to evaluate the effect of lead geometry on stress and strain distributions. Based on the simulation results, an optimum lead design was suggested. In addition, simulation work of package under thermal cyclic loading has been done, accumulated creep strain was found in the critical location of solder in package, and lifetime was predicted. © 2011-2012 IEEE.

Item Type:	Article
Funders:	University of Malaya Partnership Grant RK003-2016A
Uncontrolled Keywords:	Finite-element analysis (FEA); geometry; quad flat package (QFP); reliability; thermal stress
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering
Depositing User:	Ms. Juhaida Abd Rahim
Date Deposited:	21 Apr 2021 02:26
Last Modified:	21 Apr 2021 02:26
URI:	http://eprints.um.edu.my/id/eprint/25877

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