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Influence of a rapid annealing on the surface oxide film of a tinned copper wire

Published online by Cambridge University Press:  08 February 2011

Isabelle Gillet ,
Lionel Boyer ,
Camille Bodin  and
Germaine Binder
Isabelle Gillet
Affiliation:
Labinal, B. P. 218, 78051 St Quentin Yvelines Cedex, France
Lionel Boyer
Affiliation:
Laboratoire de Génie Electrique de Paris, Ecole Supérieure d'Electricité, Universités Paris VI et Paris XI, U.R.A. C.N.R.S. D 0127, Plateau du Moulon, 91190 Gif/Yvette, France
Camille Bodin
Affiliation:
Laboratoire de Génie Electrique de Paris, Ecole Supérieure d'Electricité, Universités Paris VI et Paris XI, U.R.A. C.N.R.S. D 0127, Plateau du Moulon, 91190 Gif/Yvette, France
Germaine Binder
Affiliation:
Alcatel-cuivre, B.P. 30, 02301 Chauny Cedex, France
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Abstract

A continuous annealing, using the Joule effect, is performed during the fabrication of a tinned copper wire. During this operation, which lasts between 1/10 and 1/100 of a second, the wire is brought in air to a temperature which exceeds the melting point of tin. The influence of the continuous annealing on the nature of the surface layer of the tin coating is studied using XPS. The thickness of the tin oxide film covering the metallic tin is shown to be reduced after the annealing. This result is confirmed by measurements of the electrical contact resistance using the crossed rods method.

Type
Articles
Information
Journal of Materials Research , Volume 6 , Issue 3 , March 1991 , pp. 492 - 498
Copyright
Copyright © Materials Research Society 1991

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