Effects of size of simulated microelectronic chips on boiling and critical heat flux
- Korea Standards Research Institute, Taejon (Korea)
- Rensselaer Polytechnic Institute, Troy, NY (USA)
Microelectronic chips were simulated with thin foil heaters supplied with d-c power and arranged in two vertical configurations: flush mounted on a circuit board substrate or protruding from the substrate about 1 mm. Heat transfer characteristics (midpoint) were obtained with varying height (1 mm to 80 mm) and width (2.5 mm to 70 mm) in R-113. Two types of incipient boiling temperature overshoot were observed with saturated boiling. The inception for boiling depended greatly on the location of the active boiling sites on the heater. For arrays, the inception of boiling for the top heater took place at lower superheat than for the bottom heater. Heater size had no effect on established boiling, in contrast to results reported previously in the literature. The critical heat flux for wide heaters increased with decreasing heater height, as expected. The critical heat flux also increased with decreasing width. Correlations are presented that describe these effects.
- OSTI ID:
- 5477413
- Journal Information:
- Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 110:3; ISSN 0022-1481; ISSN JHTRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOILING
COOLING
CRITICAL HEAT FLUX
DATA
DIELECTRIC MATERIALS
ELECTRONIC CIRCUITS
FREONS
FUNCTIONAL MODELS
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT FLUX
INFORMATION
MATERIALS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHASE TRANSFORMATIONS