Patent ID: 6852995
Filing Date: 2005-02-08
Classification: H01L

Abstract:
1. A field effect transistor comprising a source and a drain which form respective junctions with a body of polymer semiconductor material in which a channel is formed through which current passes between source and drain in use, the transistor further comprising a gate electrode electrically isolated from the body and disposed to modulate current in the channel and having a Schottky barrier at the source/body junction which is substantially 10 kT or greater, where K is Boltzmann's constant and T is the transistor's intended operating temperature, and which is arranged to be reverse biased in use, the transistor being adapted for operation in accumulation mode, the majority carrier in the channel being of the same type (n or p) as the majority carrier in the remainder of the body, and being of depletion type, an applied gate voltage being required to prevent current flow between source and drain.