Thermal characterization of a radial micro-channel cooling plate

Gy Bognár, Gy Horváth, Zs Kohári, A. J. Pang, M. P.Y. Desmulliez, A. Poppe, M. Rencz, V. Székely

Research output: Contribution to journalConference article

8 Citations (Scopus)

Abstract

The thermal behavior of a square nickel plate micro-cooler holding 128 micro-channels in radial arrangement has been investigated. The device is to be used in microelectronic packaging cooling applications. In our study it was attached to a power transistor which was used as a dissipator and a temperature sensor. The thermal transient response to a dissipation step of the transistor was recorded in the measurement. The measured transients (cooling curves) were transformed into structure functions from which the partial thermal resistance corresponding to the cooling assembly was identified. The measurement and the partial thermal resistance identification was carried out at different flow-rates of nitrogen gas forced through the micro-channels. This way thermal resistance vs. flow-rate and heat-transfer coefficient vs. flow-rate characteristics of the investigated micro-channel cooler were derived.

Original languageEnglish
Pages (from-to)135-140
Number of pages6
JournalAnnual IEEE Semiconductor Thermal Measurement and Management Symposium
Publication statusPublished - Dec 6 2005
Event21st Annual IEEE Semiconductor Thermal Measurement and Management Symposium - San Jose, CA, United States
Duration: Mar 15 2005Mar 17 2005

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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