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The University of Tokyo has developed a new chip cooling technology that improves efficiency by up to seven times.
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Industry News
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Release time:
2025-04-24
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A research team from the University of Tokyo has developed a highly efficient cooling solution based on water phase change (boiling). Its core principle lies in utilizing the property of liquid water absorbing a large amount of heat during vaporization (absorbing 7 times more energy than simple liquid flow), and resolving the vapor flow blockage issue in traditional phase-change cooling through an innovative 3D microfluidic channel design.
Key Technological Breakthroughs
Microfluidic Channel Optimization: By combining capillary structures and distribution layers, the shape of the microchannels and the coolant distribution method have been optimized to ensure stable flow of liquid water and water vapor in narrow channels.
Significant Performance Improvement: Experimental results show that the coefficient of performance (COP) of this technology reaches 100,000, approximately 10 times that of traditional single-phase water cooling technology, indicating a breakthrough improvement in its thermal management efficiency.
Passive Cooling Potential: The system may not require a pump mechanism, achieving heat dissipation solely through natural convection generated by phase change, simplifying the structure and reducing energy consumption.
Application Prospects
High-Power Electronic Devices: Such as high-performance computing (HPC), lasers, and radar systems, addressing the challenge of high local heat flux density.
Expansion into Multiple Fields: Including automobiles (such as electric vehicle battery thermal management), aerospace (lightweight heat dissipation requirements), and optoelectronic devices (LEDs, photodetectors).
Cost Advantage: No special coolant is required; it relies on conventional water as a medium, reducing material costs.
Industry Significance and Challenges
Innovative Value: This technology provides a new approach to the heat dissipation requirements under the trend of semiconductor miniaturization and may drive the development of compact cooling systems.
Existing Challenges:
The precision and cost of microchannel manufacturing may affect large-scale application;
The stability of the phase change cycle during long-term operation (such as bubble accumulation and material corrosion) needs further verification.
Market Comparison
Current active cooling solutions (such as Frore AirJet Mini Slim's solid-state heat sink and Ventiva's ionic cooling engine) rely on external force drive, while the passive nature of this technology may be more advantageous in high-reliability scenarios.
Summary
The University of Tokyo's research, through the combination of phase change and microfluidic design, provides an efficient and low-cost solution for solving the heat dissipation problems of high-power equipment. If the manufacturing and durability challenges can be overcome in the engineering stage, this technology is expected to become a key candidate for next-generation thermal management systems.
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