Y. Sungtaek Ju's team receives multi-million dollar DARPA award to conduct electronics cooling research
March 17, 2008
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Professor Y. Sungtaek Ju |
A team of UCLA researchers led by Professor Sungtaek Ju recently
received a major multi-million dollar award from DARPA to conduct
innovative research and development (R&D) research in the area of
electronics cooling. Other participants include Professor Ivan Catton
(MAE) and Professor Bruce Dunn (MSE) from UCLA, Professor Massoud
Kaviany from the University of Michigan, and engineers from Advanced
Cooling Technologies, Inc.
As electronic system technology advances, there has been increasing
pressure on the thermal engineering and heat rejection technologies
used. Despite efforts to achieve dramatic reductions in power
consumption in specific electronic devices, the need for performance
inevitably leads to operation of most electronic systems at the limits
of the available thermal management technology.
The overall goal of the new research program is the creation of a
thin, lightweight substrate dubbed thermal ground planes (TGPs) with
the thermal conductivity at least 100X higher than those of common
copper alloy substrates used in these applications. The team will
develop bio-inspired multiscale composite wick structures for advanced
heat pipes and novel composites whose coefficients of thermal
expansion are precisely matched to those of semiconductor substrates,
such as Si, SiC, and GaAs.
By working with a premier heat pipe manufacturing company, the
UCLA-led team will also rapidly transition breakthrough fundamental
research into commercial technology. The new technology will enable a
new generation of high-performance, integrated systems to operate at
high power density without problems from temperature gradients,
increased weight, or added complexity. TGPs will be particularly
important for enhancing existing systems that are highly constrained
in size and weight, including air-borne electronic radar arrays and
other avionics.
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