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Joule Heat Welding of Thin Metallic Wires and Thermoelectric Effects Around Dissimilar Metal Weld

[+] Author Affiliations
Hironori Tohmyoh, Tomochika Tanaka, Masato Fujimori, Masumi Saka

Tohoku University, Sendai, Japan

Paper No. IPACK2011-52071, pp. 709-712; 4 pages
doi:10.1115/IPACK2011-52071
From:
  • ASME 2011 Pacific Rim Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Systems
  • ASME 2011 Pacific Rim Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Systems, MEMS and NEMS: Volume 1
  • Portland, Oregon, USA, July 6–8, 2011
  • ISBN: 978-0-7918-4461-8
  • Copyright © 2011 by ASME

abstract

Fine thermoelectric elements were fabricated on an electrode chip where the tips of the Pt and W thin wires having the diameter of 5 μm were welded together by Joule heat welding. Firstly, the dissimilar metal weld was contacted to thin wire heater and the voltage appeared in the circuit due to Seebeck effect was measured. Current was supplied to the one of the thermoelectric element and the temperature at the Pt/W weld was measured by the other element. It was found that the temperature at dissimilar metal weld depended on the direction of current and Peltier effect was successfully observed.

Copyright © 2011 by ASME

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