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Aims and objectives
The primary aim of this study is to explore the influence of obesity, healthy lifestyle and sleep quality of endometrial cancer survivors on their fatigue level.
Background
As many as 30% of endometrial cancer survivors still suffer from fatigue 5 years after completing therapy. Fatigue may hinder cancer survivors from participating in daily activities or returning to their...
This paper is to investigate the fatigue life of solder balls when the BGA package is subjected to vibrating loads. To be compliant with the green package requirement, solder balls made of unleaded material, Sn-Ag-Cu, is chosen. Finite element method is performed to analyze the mechanical responses of BGA package, and fatigue life of solder balls can then be predicted by substituting the calculated...
To obtain probability distribution of random life of a package such as that shown in prototyping testing, some parameters involved in the finite element and life prediction analyses of a certain type of wafer-level chip-scale package (WLCSP) are considered random variables in the present paper. First, the solder-bump size of the package is modeled as a random variable in consideration of real manufacturing...
To study the quantitative reliability of electronic packages, a finite element analysis, with the assumption that certain geometric parameters are random variables, is carried out for a flip-chip package. The maximum strain of the package subject to thermal-cyclic loading is obtained, and the fatigue life of the package is determined based on a modified Coffin-Manson equation. Both quantities derived...
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