FET

abbr.1. federal estate tax2. federal excise tax3. field effect transistor4. frozen embryo transfer

FET

abbreviation for (Electronics) field-effect transistor

Thesaurus

Noun

FET - a transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric fieldfield-effect transistorelectronic transistor, junction transistor, transistor - a semiconductor device capable of amplification

FET

FET:

see transistortransistor,
three-terminal, solid-state electronic device used for amplification and switching. It is the solid-state analog to the triode electron tube; the transistor has replaced the electron tube for virtually all common applications.
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FET

(electronics) field-effect transistor

FET

(Field Effect Transistor) One of two major categories of transistor; the other is bipolar. FETs use a gate element that, when charged, creates an electromagnetic field that changes the conductivity of a silicon channel and turns the transistor on or off. FETs are fabricated as individually packaged discrete components as well as by the hundreds of millions on a single chip.

FETs vs. Bipolar
FET-based silcon chips are easier to construct than their bipolar counterparts. FETs switch a little slower than bipolar transistors, but use less power. Once the gate terminal on an FET has been charged, no more current is needed to keep that transistor on (closed) for the duration of time required. By comparison, a bipolar transistor requires a small amount of current flowing to keep the transistor on. While the current for one transistor may be negligible, it adds up when millions are switching simultaneously. The heat dissipated on bipolar limits the total number of transistors that can be built on the chip, which is why CMOS logic (based on FETs) is used to build chips with millions of transistors.

MOSFETs
The most widely used and widely known FETs are MOSFETs (metal oxide semiconductor FETs), which come in NMOS (n-channel) and PMOS (p-channel) varieties. On a chip, NMOS and PMOS transistors are wired together in a complementary fashion to create CMOS logic, which is the most predominant and used in almost every electronic device today. See MOSFET and n-type silicon.

There Are Many Kinds of FETs
Similar to MOSFETs are JFETs (junction FETs), which use a PN junction gate rather than a poly-crystalline gate. Used for microwave communications, MESFETs (metal semiconductor FETs) are similar to JFETs, but use a Schottky metal gate and are made from gallium arsenide or indium phosphide, not silicon. Evolving from MESFETs for higher-frequency applications are HEMTs and PHEMTs (high electron mobility transistors and pseudomorphic high electron mobility transistors). HEMTs are also called MODFETs, TEGFETs and SDHTs (modulation doped FETs, two-dimensional electron gas FETs and selectively doped heterojunction transistors).

Another high-frequency FET is the gallium arsenide-based CHFET (complementary heterostructure FET), which uses a complementary architecture similar to CMOS.

FETs vs. Bipolar

After the gate is charged in an FET, no more current flows, but the transistor remains closed (turned on) during the required time period. Bipolar transistors (BJTs) require current the entire time the transistor must be closed.

FET

Acronym	Definition
FET➣Field-Effect Transistor
FET➣Federal Excise Tax
FET➣Field Effect Transistor
FET➣Future and Emerging Technologies
FET➣Further Education and Training (RSA)
FET➣Frozen Embryo Transfer (fertility treatment)
FET➣Fair and Equitable Treatment (Bilateral Investment Treaty; international law)
FET➣Flaming Eternity (Yu-Gi-Oh! Cards)
FET➣Fast Ethernet Transceiver
FET➣Further-Eastern European Time (time zone)
FET➣Flash Emulation Tool (various companies)
FET➣Far East Time
FET➣Fast Ethernet
FET➣Fedora Engineering Team
FET➣Female Engagement Team (US Marine Corps)
FET➣Financial Economic Theory (Society of Actuaries)
FET➣Falange Española Tradicionalista (Spanish political party)
FET➣Field Evaluation Trial
FET➣Forensic Evidence Technician (law enforcement)
FET➣Freunde Elektronischer Tanzmusik (German: Friends Electric Dance Music)
FET➣Fédération Espérantiste du Travail (French: Esperanto Federation of Labor)
FET➣France Express Topo (French stoneware company)
FET➣Foundation on Economic Trends
FET➣Flight Elapsed Time
FET➣Fighter Engine Team
FET➣Forsvarets Efterretningstjeneste (Danish Defense Intelligence Agency)
FET➣Forced Expiratory Technique (chest physiotherapy)
FET➣France Européenne Télécoms (French: France European Telecoms)
FET➣Familial Essential Tremor
FET➣FarEastTone
FET➣Field Engineering Training
FET➣FICS Ethics Test
FET➣Firewall Evaluation Team
FET➣Facilities Electrical Team
FET➣Follow-on Equipment Training
FET➣Fleet Evaluation Trial
FET➣Full Expertise Team
FET➣Field Engineering Team
FET➣Functional Equipment Transfer
FET➣Federal Electoral Tribunal judiciary For electoral misconducts)
FET➣Functional Equivalency Testing
FET➣Federal Election Tribunal
FET➣Flowline End Termination
FET➣Fluid Energy Theory
FET➣Facilities Engineering Team

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Synonyms for FET

noun a transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric field

Synonyms

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