A novel approach to cooling computer chips
June 15, 12:30
Engineers at the University of Illinois Urbana-Champaign, in collaboration with Fabric8Labs, have created a new direct chip cooling system featuring copper plates with specialized fins. Testing revealed that this technology delivers up to 32% better cooling performance compared to conventional designs, while also reducing pressure losses by as much as 68% without sacrificing cooling capacity. This breakthrough addresses a critical challenge in modern computing: as data centers consume ever more power, improving cooling efficiency has become a top priority.
Energy use and the bigger picture
Rising demand for artificial intelligence services and cloud computing has driven a dramatic increase in server energy consumption across the United States, which more than tripled between 2014 and 2023. Projections suggest this figure could double or even triple again by 2028. Nearly half of the energy used by data centers goes toward cooling and auxiliary processes, underscoring the urgent need for more efficient thermal management solutions.
The newly developed cooling system consists of copper plates attached directly to chips, which efficiently dissipate heat using a liquid coolant. The plates feature raised structures—fins with pointed tips and uneven edges—that enhance heat transfer. To achieve this design, the team employed topological optimization, along with electrochemical additive manufacturing (ECAM) technology. ECAM enables the production of pure copper components with precision down to 30–50 micrometers.
“This approach allows us to find a design that simultaneously maximizes cooling efficiency and minimizes the energy required to run the pumps,” said Nenad Miljkovic, one of the engineers on the project.
In summary, this new cooling system from the University of Illinois and Fabric8Labs marks a major step forward in improving energy efficiency for data centers—an especially critical goal given the growing appetite for computing power. The development could have a significant impact on the industry, as rising data center energy consumption poses serious environmental and economic challenges. Better cooling systems not only cut energy costs but also support more sustainable growth in the technology sector, helping companies meet evolving environmental regulations and manage energy expenditures.
As the demand for advanced computing technologies continues to rise, it's crucial to explore innovative solutions that enhance performance. For instance, recent developments in nuclear reactor cooling systems have demonstrated a significant boost in AI performance, highlighting the broader implications of efficient cooling technologies in various sectors. Understanding these advancements can provide valuable insights into the future of energy management in computing.