首页> 外文会议>International Symposium on Eco-Materials Processing amp; Design; 20060108-11; Chengdu(CN) >Reliability of Sn-Ag-Cu Flip Chip Package with Underfill under Thermal Shock
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Reliability of Sn-Ag-Cu Flip Chip Package with Underfill under Thermal Shock

机译:热冲击下带有底部填充的Sn-Ag-Cu倒装芯片封装的可靠性

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摘要

Thermal fatigue properties of solder joints encapsulated with underfill were studied conducting thermal shock tests. Flip chip package with electroless nickel-immersion gold plated on FR-4 substrate and the Sn-3.0Ag-0.5Cu solder ball was used. The fatigue property of package with underfill was better than the package without it. The fatigue property of package with underfill which has a higher glass transition temperature (Tg) and lower coefficient of thermal expansion (CTE) was better than that of package with underfill with lower Tg and higher CTE.
机译:通过热冲击试验研究了填充有底部填充胶的焊点的热疲劳性能。使用在FR-4衬底上镀有化学镍浸金的倒装芯片封装和Sn-3.0Ag-0.5Cu焊球。有底部填充的包装的疲劳性能要好于没有底部填充的包装。具有较高玻璃化转变温度(Tg)和较低热膨胀系数(CTE)的底部填充包装的疲劳性能优于具有较低Tg和较高CTE的底部填充包装的疲劳性能。

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