Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
ISSN-L : 1344-3542
Communications
Cu-Sn Alloy Metallization of Polymer Substrate through Reduction-Diffusion Method Using Ionic Liquid Bath at Medium-Low Temperatures
Akira ITOKuniaki MURASETakashi ICHIIHiroyuki SUGIMURA
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JOURNALS OPEN ACCESS

2009 Volume 77 Issue 8 Pages 677-679

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Abstract

Cu-Sn speculum alloy metallization of a non-conductive epoxy substrate was demonstrated through successive electrochemical processes: (i) electroless Cu deposition on the substrate and (ii) electrochemical alloying of the resulting Cu layer with Sn through a reduction-diffusion method using an ionic liquid bath at 150°C. The resulting Cu-Sn alloy layer, composed of Cu6Sn5 and/or Cu3Sn phases, was compact, smooth, and adhesive. Dependence of the intermetallic phases on alloying potential and time was examined to discuss the alloy formation mechanism, demonstrating that Cu-Sn alloy layers composed of desired phases could easily be prepared by controlling these parameters.

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© 2009 The Electrochemical Society of Japan
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