File:FET_cross_section.svg · Wikimedia Commons · See Wikimedia Commons
field-effect transistor
Sign in to saveAlso known as FET, unipolar transistor
transistor that uses an electric field to control its electrical behaviour
Wikidata facts
- Instance of
- semiconductor device
- Subclass of
- transistor
Show 5 more facts
- Commons category
- Field-effect Transistors
- topic's main category
- Category:Field-effect transistors
- opposite of
- bipolar junction transistor
- short name
- FET
- discoverer or inventor
- Julius Edgar Lilienfeld
via Wikidata · CC0
~30 min read
Encyclopedic overview
Cross-sectional view of a MOSFET type field-effect transistor, showing source, gate and drain terminals, and insulating oxide layer.
The field-effect transistor (FET) is a type of transistor that uses an electric field to control the current through a semiconductor. It comes in two types: junction FET (JFET) and metal–oxide–semiconductor FET (MOSFET). FETs have three terminals: source, gate, and drain. FETs control the current by the application of a voltage to the gate, which in turn alters the conductivity between the drain and source.
Excerpted from Wikipedia’s “field-effect transistor” article, available under the CC BY-SA 4.0 licence.