INFLUENCE OF ENVIRONMENT ON THE FATIGUE OF PB-SN SOLDER JOINTS

被引：5
|
作者：
GUO, ZF [1 ]
SPRECHER, AF [1 ]
DAE, YJ [1 ]
CONRAD, H [1 ]
机构：
[1] IBM CORP, DEPT MAT, ENDICOTT, NY 13760 USA
来源：
IEEE TRANSACTIONS ON COMPONENTS HYBRIDS AND MANUFACTURING TECHNOLOGY | 1991年 / 14卷 / 04期
关键词：
D O I：
10.1109/33.105141
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of a vacuum (approximately 10(-6) torr) on the low cycle fatigue life (25, 50, 75, and 95% drop in load) of 10Sn90Pb and 63Sn37Pb solder joints tested in shear was investigated in total strain control (DELTA-gamma-t = 0.006 to 0.5, upsilon = 0.1-Hz ramp cycling) at 300 K. The influence of a grease coating was also determined for the 63Sn37Pb alloy for DELTA-gamma-t = 0.07-0.80. No clear effect of vacuum occurred for the strain range considered. The grease coating improved fatigue life for a constant total strain range, but gave a reduced life when considered in terms of a fixed stress range. Possible explanations for the observed effects are given.
引用
收藏
页码：833 / 837
页数：5
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