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Zn-Sn and Zn-In High Temperature Lead-Free Solders

机译:Zn-Sn和Zn-In高温无铅焊料

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摘要

The potential of newly-designed Zn-Sn and Zn-In alloys as high temperature lead-free solders was evaluated,with particular focus on the fundamental properties and interface stability. When the Sn content of Zn-Sn ally is less than 30 mass%,the liquid fraction at 260 ºC is below 25 vol%,at which solid can maintain its shape. Zn-based alloys are quite ductile compared with Bi-Ag alloys. Zn-Sn alloys can maintain interconnection between a Si die and a substrate at multiple reflow treatment for Sn-Ag-Cu. Zn-Sn possesses a great potential as lead-free high temperature solder alternatives.
机译:评估了新设计的Zn-Sn和Zn-In合金作为高温无铅焊料的潜力,特别关注了其基本性能和界面稳定性。当Zn-Sn合金中Sn的含量小于30质量%时,260℃下的液相分数低于25 vol%,此时固体可以保持其形状。锌基合金与Bi-Ag合金相比,韧性好。 Zn-Sn合金可以在多次回流处理Sn-Ag-Cu的过程中保持Si芯片和衬底之间的互连。 Zn-Sn具有无铅高温焊料替代品的巨大潜力。

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