作者: Yan Wang , Jing Han , Fu Guo , Xiaoxing Ke
DOI: 10.1007/S11664-017-5585-7
关键词: Metallurgy 、 Grain orientation 、 Soldering 、 Electron flow 、 Materials science 、 Electromigration 、 Solid-state physics 、 Composite solder 、 Perpendicular 、 Composite number
摘要: Grain orientations are a significant factor under high-density current stressing, but there few literature reports about the influence of grain orientation on electromigration in composite solder joints. Most research relating to behavior solders have been carried out by adding different kinds reinforced particles order relieve phenomena, while impacts neglected. In this paper, Sn-3.5Ag joints 2 vol.% Cu were fabricated investigate effects Sn electromigration. The one-dimensional single-grained stressed constant density 104A/cm2 for times at room temperature. samples, which c-axis grains was nearly parallel electron flow direction, exhibited serious electromigration-induced phenomena after stressing 528 h. However, not observed samples where had their perpendicular direction. Therefore, great and atoms moved faster along than a- b-axes during stressing.