Role of ag in the formation of interfacial intermetallic phases in Sn-Zn soldering

被引:46
作者
Song, JM [1 ]
Liu, PC
Shih, CL
Lin, KL
机构
[1] Natl Dong Hwa Univ, Dept Mat Sci & Engn, Hualien 974, Taiwan
[2] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 701, Taiwan
关键词
lead-free solder; Sn-Zn; interfacial intermetallics;
D O I
10.1007/s11664-005-0270-7
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This study explored the effect of Ag as the substrate or alloying element of solders on the interfacial reaction in Sn-Zn soldering. Results show that instead of Ag-Sn compounds, zeta-AgZn and gamma-Ag5Zn8 form at the Sn-Zn/Ag interface. The addition of Ag in Sn-Zn solders leads to the precipitation of epsilon-AgZn3 from the liquid solder on preformed interfacial intermetallics. The morphology of this additional AgZn3 is closely related to the solidification process of Ag-Zn intermetallics and the under intermetallic layer.
引用
收藏
页码:1249 / 1254
页数:6
相关论文
共 22 条