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 language | English (US) |
|---|---|
| Pages | 2709-2714 |
| Number of pages | 6 |
| State | Published - 2001 |
| Externally published | Yes |
| Event | 2001 ASME International Mechanical Engineering Congress and Exposition - New York, NY, United States Duration: Nov 11 2001 → Nov 16 2001 |
Conference
| Conference | 2001 ASME International Mechanical Engineering Congress and Exposition |
|---|---|
| Country/Territory | United States |
| City | New York, NY |
| Period | 11/11/01 → 11/16/01 |
ASJC Scopus subject areas
- General Engineering