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Abstract:
通过观察焊点的电阻变化和显微组织演变,研究了电流密度对 Sn3.0Ag0.5Cu 焊点蠕变行为的影响。结果表明:焊点在低电流密度条件下蠕变时,其电阻波动大、寿命长,失效机制由蠕变过程主导,损伤逐渐累积导致最终失效;焊点在高电流密度条件下蠕变时,其电阻波动小、寿命短,电迁移作用缓解了焊点的初期蠕变损伤,但是加速了焊点后期脆性断裂失效。
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电子元件与材料
ISSN: 1001-2028
Year: 2014
Issue: 7
Page: 73-76
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 4
Chinese Cited Count:
30 Days PV: 7
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