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In this article, we are going to explain different types of transistors. Our brain is made up of 100 billion-plus cells termed Neurons that are used to think and memorize things and a computer also has billions of tiny cells named Transistors. It is a collection of chemical elements made of Silicon. Transistors have changed the theory of electronics since it has been designed over half a century before by Walter Brattain, John Bardeen, and William Shockley.
Transistor is a device made up of semiconductor material that is commonly used for switching and amplification. It is also used to control the flow of voltage, and current, and amplify the input signals to the extent output signal. Transistor is a solid-state electronic device that is made up of semiconducting materials. The electronic current circulation can be changed by the addition of electrons.
A transistor consists of three layers of semiconductor, that have the ability to hold current. Electricity-conducting material (silicon and germanium) has the ability to carry electricity between conductors and insulators. This material is enclosed by plastic wires. These conducting materials are treated by some chemical procedure called doping. When silicon is doped with phosphorous, arsenic & antimony, it obtained some extra charge carriers electrons, which are known as negative semiconductor N-type. When silicon is doped with aluminum, boron, and gallium, it obtains fewer charge carriers known as a positive semiconductor or P-type.
There are several types of transistors we can divide Transistors into two categories Bipolar Junction transistors (BJT) and Field Effect Transistors (FET). Further, we can divide it like below:
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