(under subclass 263) Subject matter wherein a field effect transistor (FET) is utilized in the circuit.
(1) Note. A field effect transistor (FET) is a semiconductor device in which the resistance between two terminals, the source and drain, depends on a field produced by a voltage applied to the third terminal, the gate.
(2) Note. The field may modulate a depletion region, as in a junction FET, or it may cause a conductivity change in a channel, as in a MOS-FET.
SEE OR SEARCH THIS CLASS, SUBCLASS:
253, for FET in combination with differential amplifiers.
269, for FET in combination with push-pull amplifiers.
277, for field effect transistors in other transistor amplifiers.
300, for field effect transistors in combined diverse-type semiconductor devices. SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
581, for miscellaneous circuits using field-effect transistors.
