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Effects of Current Stressing on Formation and Evolution of Kirkendall Voids at Sn–3.5Ag/Cu Interface

✍ Scribed by C. Yu; Y. Yang; H. Lu; J. M. Chen


Publisher
Springer US
Year
2010
Tongue
English
Weight
605 KB
Volume
39
Category
Article
ISSN
0361-5235

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Solder joints of Cu/Sn-3.5Ag were prepared using Cu foil or electroplated Cu films with or without SPS additive. With a high level of SPS in the Cu electroplating bath, voids tended to localize at the Cu/Cu 3 Sn interface during subsequent aging at 150 °C, which was highly detrimental to the drop im