8/7/2023 0 Comments Define transistor in chemistry![]() The key active components are known as Transistors in practically all modern electronics. There are many types of transistors which are made to standardized specifications. Certain vacuum tubes have advantages over transistors at high operating voltages or very high operating frequencies. Transistors are generally smaller as compared with the vacuum tube and require less power to operate. In a field-effect transistor, a transistor may have only one kind of charge carrier or may have two kinds of charge carriers in bipolar junction transistor devices. Certain other semiconductor materials are sometimes used to make transistors. Silicon is the substance which is used to make the transistors. The MOSFET was known as the first truly compact transistor that could be miniaturised and mass-produced for a wide range of uses. In 1956, the three shared the Nobel Prize in Physics for their achievement in the most widely used transistor which is the MOSFET: Metal–oxide–semiconductor field-effect transistor, which is also known as the MOS transistor. In 1947, the first working device to be built was a point-contact transistor invented by American physicists named Walter Brattain and John Bardeen while working under William Shockley at Bell Labs. ![]() However, it was not possible to actually construct a working device at that time on the given concept. In 1926, Julius Edgar Lilienfeld, an Austro-Hungarian physicist, proposed the concept of a field-effect transistor. ![]() Today there are some transistors that are packaged individually, but many more transistors are found embedded in integrated circuits. ![]() Because the controlled power of output can be higher than the controlling input power, a transistor can amplify a signal. A current or a voltage which is applied to one pair of the transistor's terminals controls the current through another pair of terminals. A transistor is composed of semiconductor material which is usually with at least three terminals for connection to an external circuit. A transistor is defined as a semiconductor device which is used to amplify or switch electronic signals and electrical power. ![]()
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