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Proceedings Paper

Microprobes for highly localized cooling/heating applications
Author(s): Lei Huang; Wanjun Wang; Michael C. Murphy
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Paper Abstract

This paper reports a microfabricated array of probes suitable for highly localized temperature manipulation (cooling or heating) or temperature manipulation of micro- sized subject. These microprobes were fabricated with `LIGA' (German acronym for Lithographie, Galvanoformung, Abformung) process--one of the MEMS (microelectromechanical systems) technologies. The LIGA technology is based on X-ray lithography and electroplating and suitable for making high- aspect-ratio metal or alloy structures with aspect-ratio up to 100 times. The array of microprobes with a height of 1000 m was fabricated on the top surface of a conventional electronic cooling device based on Peltier effect. Electrical current supplied to the cooling chip causes a cooling effect and thermal conduct effect of the microprobes carries the heat from the sample subject to be cooled to the cooling chip surface. A one-stage semiconductor-cooling device with a maximum temperature difference of 20 degree(s)C was used. It was found that the maximum temperature difference that could be achieved was very close to the temperature at the surface of the electronic device and the difference is small.

Paper Details

Date Published: 8 September 1998
PDF: 10 pages
Proc. SPIE 3514, Micromachined Devices and Components IV, (8 September 1998); doi: 10.1117/12.323907
Show Author Affiliations
Lei Huang, Louisiana State Univ. (United States)
Wanjun Wang, Louisiana State Univ. (United States)
Michael C. Murphy, Louisiana State Univ. (United States)

Published in SPIE Proceedings Vol. 3514:
Micromachined Devices and Components IV
Patrick J. French; Kevin H. Chau, Editor(s)

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