Gallium Nitride: Is it the new Silicon?
A MOSFET (Metal-Oxide-Semiconductor Field-Effect transistor) turns ON when there is a current flow from the source to the drain. The channel creates a so-called gateway for the current. The gate voltage is used to establish a channel only after which the current flow can happen. Reducing the size of the transistor reduces the channel length over which an electron has to travel under the applied electric field which leads to Quantum Tunneling wherein the electron can cross the