318 金属薄膜熱電対の熱電効果に及ぼすエレクトロマイグレーションの影響(OS2-3 皮膜・薄膜の環境強度,OS2 薄膜・皮膜とその膜構造の特性評価)

概要

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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.
2007-10-24