field effect transistor


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Related to field effect transistor: Junction Field Effect Transistor

field effect transistor

(electronics)
(FET) A transistor with a region of donor material with two terminals called the "source" and the "drain", and an adjoining region of acceptor material between, called the "gate". The voltage between the gate and the substrate controls the current flow between source and drain by depleting the donor region of its charge carriers to greater or lesser extent.

There are two kinds of FET's, Junction FETs and MOSFETs.

Because no current (except a minute leakage current) flows through the gate, FETs can be used to make circuits with very low power consumption.

Contrast bipolar transistor.
References in periodicals archive ?
CdS nanobelt (NB) Metal-Semiconductor Field Effect Transistor (MESFET)-based photodetectors showing a photoresponsivity of 2x[10.
This work may be used by others in designing higher performance tunneling field effect transistors which may enable future low power integrated circuits for your mobile device," he added.
Among his topics are material properties, ideal specific on-resistance, junction field effect transistors, silicon carbide planar power metal-oxide-semiconductor field-effect-transistors, silicon carbide bipolar junction transistors, and silicon carbide gate turn-off thyristors.
In case tubes with very small diameters and appropriate length can be produced, it is possible to produce field effect transistors with floating gate that can be controlled from inside.
Metal Oxide Semiconductor Field Effect Transistors (MOS- FETs) offer the compelling advantage that they draw almost zero control current while idle.

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