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Microscale liquid impingement cooling

  • Lian Zhang
  • , Evelyn N. Wang
  • , Jon D. Koch
  • , Jonathan T.C. Liu
  • , Jae Mo Koo
  • , Linan Jiang
  • , Kenneth E. Goodson
  • , Juan G. Santiago
  • , Thomas W. Kenny

Research output: Contribution to conferencePaperpeer-review

Abstract

Impingement cooling is an attractive method for individual IC cooling because of the uniformity and high values of the expected heat transfer coefficient. This paper presents spatially-averaged temperature measurements for DI water impingement from single micro jets with diameters smaller than 50 μm. The jets are circular orifices plasma etched into silicon. A heater chip is fabricated to simulate a high power IC while simultaneously measuring the temperature distribution around the impingement region. A hydrodynamic model is proposed for determining the pressure drop associated with jet formation. With a single 50 μm diameter DI water jet at 3.5 ml/min flow rate, up to 45 W/cm2 heat flux has been removed with 80°C chip temperature rise. This research provides the first study of microscale liquid impingement cooling down to 14 μm diameter jets.

Original languageEnglish (US)
Pages2709-2714
Number of pages6
StatePublished - 2001
Externally publishedYes
Event2001 ASME International Mechanical Engineering Congress and Exposition - New York, NY, United States
Duration: Nov 11 2001Nov 16 2001

Conference

Conference2001 ASME International Mechanical Engineering Congress and Exposition
Country/TerritoryUnited States
CityNew York, NY
Period11/11/0111/16/01

ASJC Scopus subject areas

  • General Engineering

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