A research team at the department of Materials Science and Engineering in the University of Texas at Arlington has published a very interesting paper in the world renown journal, Nature. The team successfully created a chip that cools itself down to -228C at room temperature. No liquid Nitrogen or Helium was used or any sort of external cooling measure.
New Breakthrough in Electronics Cooling Technology
This works by building quantum wells into the chip itself. These wells work as filters that only allow extremely cool electrons to pass through them. This means that engineers can build transistors that operate under exceptionally low temperatures. Quantum wells can be summarized as tiny gaps between two semiconductors, Silicon in this instance. Only electrons with very specific characteristics would hit this filter and pass through it while all other electrons would bounce back.
“We are the first to effectively cool electrons at room temperature. Researchers have done electron cooling before, but only when the entire device is immersed into an extremely cold cooling bath” said Seong Jin Koh who led the research effort.