The Proceedings of the Materials and Mechanics Conference
Online ISSN : 2424-2845
2007
Session ID : 318
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318 The Effect of Electromigration on The Thermopower of Thermocouple Made of Metallic Thin film
Kazuhiko SASAGAWASatoru HIRANO
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
Thermoelectric effect is an interaction of a thermal phenomenon and an electric phenomenon. The thermoelectric effects are enhanced if electric current with high-density flows in metal. On the other hand, high-density current induces electromigration, which means the transportation of metallic atoms by electron wind. In the metal under high-density current, the thermoelectric effects and electromigration take place at the same time, and it, therefore, is expected that electromigration has a concern with the thermoelectric effects. In this study, the effect of electromigration on the thermoelectric effects is discussed taking notice of the absolute thermopower which indicates the magnitude of the thermoelectric effects. Using Au/Ni thermocouple, the Seebeck electromotive force (EMF) is measured before and after the introduction of electromigration to metal. The value of thermopower is obtained from check the each Seebeck EMF. And the effect of electromigration on the thermopower of Au/Ni is discussed.
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© 2007 The Japan Society of Mechanical Engineers
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