Smallest Transistor in the World

Ant wrote to tell us of a story on BBC's Web site about the world's smallest transistor. The Vertical Transistor uses the thickness of a precisely-controlled layer of material, rather than light, to set the gate size, which makes for smaller circuits. With many scientists of the opinion that current transistor technology will hit a brick wall of physics soon, the vertical transistor offers a new way to get greater processing power.