transistors - definition. What is transistors
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%ما هو (من)٪ 1 - تعريف

A SEMICONDUCTOR DEVICE
Transistors; Transistorized; Redifine your concepts about Transistor; Collector (electronics); Discrete transistor; Silicon transistor; Transistor Outline; Electronic transistors; Draft:Transistor Electronics
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  • [[John Bardeen]], [[William Shockley]] and [[Walter Brattain]] at [[Bell Labs]] in 1948. Bardeen and Brattain invented the [[point-contact transistor]] in 1947 and Shockley the [[bipolar junction transistor]] in 1948.
  • [[Herbert Mataré]] (seen here in 1950) independently invented a point-contact transistor in June 1948
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  • [[Julius Edgar Lilienfeld]] proposed the concept of a [[field-effect transistor]] in 1925.
  • Soviet [[KT315]]b transistors
  • gate]] (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink).
  • Amplifier circuit, common-emitter configuration with a voltage-divider bias circuit
  • A replica of the first working transistor, a [[point-contact transistor]] invented in 1947
  • V<sub>g</sub>}} curve. At first, when no gate voltage is applied, there are no inversion electrons in the channel, so the device is turned off. As gate voltage increases, the inversion electron density in the channel increases, current increases, and thus the device turns on.
  • Assorted discrete transistors
  • BJT used as an electronic switch, in grounded-emitter configuration
  • Transistor symbol created on [[Portuguese pavement]] in the [[University of Aveiro]]
  • BJT transistor]] packages, from left to right: [[SOT-23]], [[TO-92]], [[TO-126]], [[TO-3]]

transistor         
<electronics> A three terminal semiconductor amplifying device, the fundamental component of most active electronic circuits, including digital electronics. The transistor was invented on 1947-12-23 at Bell Labs. There are two kinds, the bipolar transistor (also called the junction transistor), and the field effect transistor (FET). Transistors and other components are interconnected to make complex integrated circuits such as logic gates, microprocessors and memory. (1995-10-05)
transistor         
¦ noun
1. a semiconductor device with three connections, capable of amplification and rectification.
2. (also transistor radio) a portable radio using circuits containing transistors.
Derivatives
transistorization or transistorisation noun
transistorize or transistorise verb
Origin
1940s: from transfer + resistor, on the pattern of words such as varistor.
transistor         
(transistors)
1.
A transistor is a small electronic part in something such as a television or radio, which controls the flow of electricity.
N-COUNT
2.
A transistor or a transistor radio is a small portable radio. (OLD-FASHIONED)
N-COUNT

ويكيبيديا

Transistor

A transistor is a semiconductor device used to amplify or switch electrical signals and power. It is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Some transistors are packaged individually, but many more in miniature form are found embedded in integrated circuits.

Physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transistor in 1926, but it was not possible to construct a working device at that time. The first working device was a point-contact transistor invented in 1947 by physicists John Bardeen, Walter Brattain, and William Shockley at Bell Labs; the three shared the 1956 Nobel Prize in Physics for their achievement. The most widely used type of transistor is the metal–oxide–semiconductor field-effect transistor (MOSFET), invented by Mohamed Atalla and Dawon Kahng at Bell Labs in 1959. Transistors revolutionized the field of electronics and paved the way for smaller and cheaper radios, calculators, computers, and other electronic devices.

Most transistors are made from very pure silicon, and some from germanium, but certain other semiconductor materials are sometimes used. A transistor may have only one kind of charge carrier, in a field-effect transistor, or may have two kinds of charge carriers in bipolar junction transistor devices. Compared with the vacuum tube, transistors are generally smaller and require less power to operate. Certain vacuum tubes have advantages over transistors at very high operating frequencies or high operating voltages. Many types of transistors are made to standardized specifications by multiple manufacturers.

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