Suppressing Growth of the Cu5Zn8 Intermetallic Layer in Sn-Zn-Ag-Al-Ga/Cu Solder Joints
Autor: | R. S. Lai, Kwang-Lung Lin, B. Salam |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Journal of Electronic Materials. 38:88-92 |
ISSN: | 1543-186X 0361-5235 |
Popis: | Cu5Zn8 normally forms between Sn-Zn solder and Cu metallization. In this study, the growth of the intermetallic compound (IMC) layer is slowed by increasing the silver content in the Sn-8.5Zn-Ag-Al-Ga/Cu system. Experimental results showed that the total thickness of the IMC layers formed with 1.5 wt.% silver content was about half that without silver. The reduction might be due to the formation of the intermetallic compound (Ag,Cu)-Zn at the interface in addition to silver. |
Databáze: | OpenAIRE |
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