Electrochemical formation of Ag-Sn layers on copper plates

V. M. Roschin; M. S. Mikhailova; Yu. I. Shilyaeva; I. N. Petukhov; V. R. Kukhtyaeva

doi:10.1117/12.2180763

18 December 2014 Electrochemical formation of Ag-Sn layers on copper plates

V. M. Roschin, M. S. Mikhailova, Yu. I. Shilyaeva, I. N. Petukhov, V. R. Kukhtyaeva

Proceedings Volume 9440, International Conference on Micro- and Nano-Electronics 2014; 944008 (2014) https://doi.org/10.1117/12.2180763
Event: The International Conference on Micro- and Nano-Electronics 2014, 2014, Zvenigorod, Russian Federation

Abstract

The investigation of promising materials used as lead-free solders has been conducted for a long time. In this connection, special attention is paid to low-melting-point metals and alloys, however the search for optimal systems is still going on. The systems Ag-Sn due to excellent electronic conductivity are the most attractive ones. The aim of this work is the development of modes of the electrochemical formation of Ag-Sn layers of the required composition on the surface of the copper plate, and also the investigation of the Ag-Sn structure composition influence on thermodynamic properties in the range of temperatures from the room temperature to 500 °С. During the investigation there has been developed a set of recommendations on the choice of appropriate electrolytes for deposition of Sn and Ag, optimal current density for obtaining a high-quality coating. On the basis of the differential scanning calorimetry data, it has been established that the Ag-Sn systems of a certain composition have the optimal characteristics. The obtained results allow us to develop the formation methods of solders with given thermodynamic characteristics and to set the temperature ranges of stability for application as metallization systems. Begin the abstract two lines below author names and addresses. The abstract summarizes key findings in the paper.

Citation Download Citation

V. M. Roschin, M. S. Mikhailova, Yu. I. Shilyaeva, I. N. Petukhov, and V. R. Kukhtyaeva "Electrochemical formation of Ag-Sn layers on copper plates", Proc. SPIE 9440, International Conference on Micro- and Nano-Electronics 2014, 944008 (18 December 2014); https://doi.org/10.1117/12.2180763

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