US PATENT SUBCLASS 341 / 136
.~.~ Field effect transistor

Current as of: June, 1999
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341 /   HD   CODED DATA GENERATION OR CONVERSION

126  DF  ANALOG TO OR FROM DIGITAL CONVERSION {12}
133  DF  .~ With particular solid state devices (e.g., Gunn effect device, Josephson device, drift transistor, using solid state active devices as impedances) with other at longer intervals) {3}
136.~.~ Field effect transistor

DEFINITION

Classification: 341/136

Field effect transistor:

(under subclass 133) Subject matter using a semiconductor device in which the resistance between two terminals, the source and the drain, is switched by a voltage applied to the third terminal, the gate, and the said resistance is determined by device geometry.

SEE OR SEARCH CLASS

257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), appropriate subclasses, including

213, 413 for field effect devices.

326, Electronic Digital Logic Circuitry, appropriate subclasses for FET logic circuits.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses for miscellaneous FET circuits.