There were a few articles last year about microscopic vacuum transistors: http://spectrum.ieee.org/semiconductors/devices/introducing-the-vacuum-transistor-a-d

There were a few articles last year about microscopic vacuum transistors: http://spectrum.ieee.org/semiconductors/devices/introducing-the-vacuum-transistor-a-device-made-of-nothing http://spectrum.ieee.org/semiconductors/devices/introducing-... Could be the next big thing in computing. Or not. Only time will tell.