Reaction evolution in Sn-20.0 wt% In-2.8 wt% Ag/Ni couples

Sinn Wen Chen, Che Wei Hsu, Shih Kang Lin, Chia Ming Hsu

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)


Interfacial reactions at 100 and 150 °C in the Sn-20.48 at.% In-3.05 at.% Ag (Sn-20.0 wt% In-2.8 wt% Ag)/Ni couples are studied. Three unusual phenomena are observed. First, liquation is found in Sn-20.48 at.% In-3.05 at.% Ag (Sn-In-Ag)/Ni couples that are reacted at 150 °C, which is lower than the melting points of both the solder and the Ni substrate. In addition to the Ni3Sn4 phase, liquid phase is formed in the reaction layer. Second, the liquid phase disappears and isothermal solidification occurs when there is prolonged isothermal heat treatment at 150 °C. The results are similar to those for transient liquid phase bonding. Third, the thickness of the reaction layer in Sn-In-Ag/Ni couples that are reacted for 1440 h at 150 °C is 40 times thicker than that of those reacted at 100 °C. The reaction mechanisms for these three unusual phenomena: liquation, isothermal solidification, and an extraordinary increase in the reaction rate for only 50 °C difference in temperature are elaborated and are related to each other.

頁(從 - 到)3257-3260
期刊Journal of Materials Research
出版狀態Published - 2013 十二月 14

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業


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