It is now widely recognized that the three-dimensional (3D) system integration is a key enabling technology to achieve the performance needs of future microprocessor integrated circuits (ICs). To provide modular thermal management in 3D-stacked ICs, the interlayer microfluidic cooling scheme is adopted and analyzed in this study focusing on a single cooling layer performance. The effects of cooling mode (single-phase versus phase-change) and stack/layer geometry on thermal management performance are quantitatively analyzed, and implications on the through-silicon-via scaling and electrical interconnect congestion are discussed. Also, the thermal and hydraulic performance of several two-phase refrigerants is discussed in comparison with single-phase cooling. The results show that the large internal pressure and the pumping pressure drop are significant limiting factors, along with significant mass flow rate maldistribution due to the presence of hot-spots. Nevertheless, two-phase cooling using R123 and R245ca refrigerants yields superior performance to single-phase cooling for the hot-spot fluxes approaching . In general, a hybrid cooling scheme with a dedicated approach to the hot-spot thermal management should greatly improve the two-phase cooling system performance and reliability by enabling a cooling-load-matched thermal design and by suppressing the mass flow rate maldistribution within the cooling layer.
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e-mail: yoonjo.kim@me.gatech.edu
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Thermal Characterization of Interlayer Microfluidic Cooling of Three-Dimensional Integrated Circuits With Nonuniform Heat Flux
Yoon Jo Kim,
Yoon Jo Kim
G.W. Woodruff School of Mechanical Engineering,
e-mail: yoonjo.kim@me.gatech.edu
Georgia Institute of Technology
, Atlanta, GA 30332
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Yogendra K. Joshi,
Yogendra K. Joshi
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
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Andrei G. Fedorov,
Andrei G. Fedorov
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
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Young-Joon Lee,
Young-Joon Lee
School of Electrical and Computer Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
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Sung-Kyu Lim
Sung-Kyu Lim
School of Electrical and Computer Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
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Yoon Jo Kim
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332e-mail: yoonjo.kim@me.gatech.edu
Yogendra K. Joshi
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
Andrei G. Fedorov
G.W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
Young-Joon Lee
School of Electrical and Computer Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332
Sung-Kyu Lim
School of Electrical and Computer Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332J. Heat Transfer. Apr 2010, 132(4): 041009 (9 pages)
Published Online: February 19, 2010
Article history
Received:
February 2, 2009
Revised:
September 25, 2009
Online:
February 19, 2010
Published:
February 19, 2010
Citation
Kim, Y. J., Joshi, Y. K., Fedorov, A. G., Lee, Y., and Lim, S. (February 19, 2010). "Thermal Characterization of Interlayer Microfluidic Cooling of Three-Dimensional Integrated Circuits With Nonuniform Heat Flux." ASME. J. Heat Transfer. April 2010; 132(4): 041009. https://doi.org/10.1115/1.4000885
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