Patent ID: 8174054
Filing Date: 2012-05-08
Classification: H01L

Abstract:
1. A field effect transistor comprising: a semiconductor substrate comprising an electrically conducting channel layer therein; a first edge finger positioned on a first face of the substrate and the first edge finger comprising either a source finger or a drain finger; a second edge finger wherein the second edge finger is either a source finger or a drain finger and being a same type of finger as the first edge finger; a plurality of interior fingers positioned between the first edge finger and the second edge finger and comprising a first plurality of source fingers and a second plurality of drain fingers, each finger separated from an adjacent finger by a gate channel; the gate channel comprising at least one active gate channel defined by a source finger and a drain finger arranged on the first face such that current is free to flow between them via the electrically conducting channel layer, and a plurality of inactive gate channels, at least a first of the plurality of inactive gate channels being defined in part by the first edge finger and an interior finger and at least a second of the plurality of inactive gate channels being defined in part by the second edge finger and a different interior finger; the gate channels being arranged such that each active gate channel has a gate channel on each side and each edge finger has a gate channel on only one side; and each active gate channel comprising a gate therein for controlling current flow in the electrically conducting channel layer.