The transistor was invented by William Shockley in 1947. A transistor is a three-terminal semiconductor device which can be used for switching applications, amplifier of weak signals and in quantities of thousands and millions of transistors are interconnected and embedded into a tiny integrated circuit/chip, which makes a computer memory.



What is transistor?

The transistor is a semiconductor device that can function as a signal amplifier or as a solid-state switch. The transistor can be considered as two p-n junctions that are placed back to back.

The structure has two PN junctions with a very small base region between the two outlying areas for the collector and emitter. There are three main classifications of transistors each with its own symbols, characteristics, design parameters, and applications.

Transistor Applications

  • Most common applications of transistor comprise of analog & digital switches, power regulators, multi-vibrators, different signal generators, signal amplifiers & equipment controllers.
  • Transistors are the basic building blocks of the integrated circuits and most up-to-date electronics.
  • A major application of transistor is the microprocessors over and over again comprises more than a billion of transistors in every single chip.

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