New material draws heat away from hotspots much faster than current materials, which could lead to dramatic improvements in computer chip performance and energy efficiency
Working to address “hotspots” in computer chips that degrade their performance, UCLA engineers have developed a new semiconductor material, defect-free boron arsenide, that is more effective at drawing and dissipating waste heat than any other known semiconductor or metal materials.
This could potentially revolutionize thermal management designs for computer processors and other electronics, or for light-based devices like LEDs.
Computer processors have continued to shrink down to nanometer sizes where today there can be billions of transistors are on a single chip. This phenomenon is described under Moore’s Law, which predicts that the number of transistors on a chip will double about every two years. Each smaller generation of chips helps make computers faster, more powerful and able to do more work. But doing more work also means they’re generating more heat.
Managing heat in electronics has increasingly become one of the biggest challenges in optimizing performance. High heat is an issue for two reasons. First, as transistors shrink in size, more heat is generated within the same footprint. This high heat slows down processor speeds, in particular at “hotspots” on chips where heat concentrates and temperatures soar. Second, a lot of energy is used to keep those processors cool. If CPUs did not get as hot in the first place, then they could work faster and much less energy would be needed to keep them cool.
The UCLA study was the culmination of several years of research by Hu and his students that included designing and making the materials, predictive modeling, and precision measurements of temperatures.
The defect-free boron arsenide, which was made for first time by the UCLA team, has a record-high thermal conductivity, more than three-times faster at conducting heat than currently used materials, such as silicon carbide and copper, so that heat that would otherwise concentrate in hotspots is quickly flushed away.
“This material could help greatly improve performance and reduce energy demand in all kinds of electronics, from small devices to the most advanced computer data center equipment,” Hu said. “It has excellent potential to be integrated into current manufacturing processes because of its semiconductor properties and the demonstrated capability to scale-up this technology. It could replace current state-of-the-art semiconductor materials for computers and revolutionize the electronics industry.”
The study’s other authors are UCLA graduate students in Hu’s research group: Joonsang Kang, Man Li, Huan Wu, and Huuduy Nguyen.
In addition to the impact for electronic and photonics devices, the study also revealed new fundamental insights into the physics of how heat flows through a material.
“This success exemplifies the power of combining experiments and theory in new materials discovery, and I believe this approach will continue to push the scientific frontiers in many areas, including energy, electronics, and photonics applications,” Hu said.
Receive an email update when we add a new NEW MATERIALS DISCOVERY article.
The Latest on: New materials discovery
via Google News
The Latest on: New materials discovery
- New composite advances lignin as a renewable 3-D printing material on December 19, 2018 at 4:35 am
The discovery, detailed in Science Advances ... Using as much as 50 percent lignin by weight, a new composite material created at ORNL is well suited for use in 3D printing. […]
- Chinese scientists find quantum Hall effect in 3D materials on December 19, 2018 at 12:51 am
Researchers in China have found evidence of a new type of quantum Hall Effect existent in a three-dimensional topological semimetal. The study, published in Nature on Monday, illustrated the path of t... […]
- Silicon Paradox: Scientists discover seemingly “impossible” material on December 18, 2018 at 11:57 pm
The results obtained open up a completely new path in the development of modern materials science as well as a fundamentally ... pressures deep in our planet’s core. Scientists have discovered that a ... […]
- New York diner chomps on an oyster, finds a pearl on December 18, 2018 at 11:27 pm
(CNN) - A surprise discovery in your food is rarely good news, but for one man in New York it turned out to be a real stroke ... Pearls form when debris, pests or other material gets in between two la... […]
- New megalibrary approach proves useful for the rapid discovery of new materials on December 18, 2018 at 12:27 pm
Identifying the best material for a given application -- catalysts, light-harvesting structures, biodiagnostic labels, pharmaceuticals and electronic devices -- is traditionally a slow and daunting ta... […]
- New Metrics Show Kryon RPA Developer Certification Earns Prestige and Popularity on December 13, 2018 at 5:45 am
We at Kryon are constantly expanding our course selection and adding new material to the Kryon Academy ... offering the only platform on the market which encompasses both Process Discovery and Robotic ... […]
- Global E-Discovery Market Projected to Display a Robust Growth with a CAGR of 10.90% by 2026 on December 13, 2018 at 4:55 am
New York, NY -- (SBWIRE ... However, this process estimates detailed E-Discovery study regarding manufacturing cost which contains raw material, and different suppliers for industrial equipment. — Our ... […]
- New problems for the Silver Line phase 2: Officials say rail ties are flawed on December 12, 2018 at 6:00 am
Capital Rail Constructors, the lead contractor on the project, discovered the problem in September ... unsealed earlier this year alleged the panels were made from substandard material by a company th... […]
- The Found Footage That Provides a Whole New Look at the Apollo 11 Moon Landing on December 9, 2018 at 1:00 am
In the new documentary Apollo 11, freshly unearthed footage of the 1969 lunar mission, with the help of a community of space nerds, will tell the story of the historic event in a new way, making the f... […]
via Bing News