Patent ID: 7939866

Claim:
A Field Effect Transistor comprising: a substrate comprising a semiconductor layer; a first electrode on the substrate, the first electrode comprising a bus bar and having first and second first electrode fingers extending therefrom, the fingers being spaced apart to define a receiving channel therebetween; a second electrode on the substrate having a second electrode finger spaced apart from the first electrode and extending along the receiving channel to define a gate region between the fingers, the gate region comprising a curved portion bent and free of a right angle in plan view beyond the end of the second electrode finger proximate to the bus bar of the first electrode; a gate electrode extending along the gate region, through the curved gate portion; the substrate further comprising an active layer beneath the gate region, the active layer being adapted to change between on and off states on application of a voltage to the gate electrode; characterised in that the active layer extends beyond the end of the second electrode finger beneath the curved portion of the gate region.