By Josh Perry, Editor [email protected]
Researchers from several U.S. universities, as well as industry partners, gathered at the University of Arkansas (Fayetteville, Ark.) for a workshop on the future of electronics hosted by the Center for Power Optimization of Electro-Thermal Systems (POETS).
Researchers from several universities gathered to discuss increasing the thermal limit for semiconductors. (Wikimedia Commons)
The workshop, according to a report from the university, included researchers from Arkansas, Stanford University, the University of Illinois – Urbana and Howard University. The goal was examining the future of batteries, microprocessors, and power electronics.
According to the report, “The workshop introduced the questions, ‘What could be accomplished if the power electronics, microprocessors, and batteries of the future ran hotter (perhaps as high as 500°C, or more)? How would this new operating point revolutionize the design of automobiles, aircraft, and spacecraft?’”
POETS researchers are currently working on redesigning automotive electrical systems for more efficient and heat-resistant performance with a stated goal of increasing power density by 10-100 times what current systems are capable. To achieve this goal, researchers are looking for ways to enhance the thermal limit of semiconductors.
“The limit is approximately 250°C (482°F) for commonly used silicon for semiconductors, and often less than 150°C (302°F) for their associated packaging,” the report explained. This sets an upper limit of one kW/cm2 for safe electronic systems.
The report continued, “To overcome these significant environmental challenges, engineers integrate active cooling systems or complex packaging into the design of electronic modules to make them more durable, but those fixes can significantly increase cost and payload requirements. The workshop was designed to help researchers and businesses address those issues.”
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