What is MOSFET and How It Works?

What is MOSFET and How It Works?

 What is MOSFET? A Metal Oxide Semiconductor Field-effect Transistor (MOSFET, MOS-FET, or MOS FET) is a type of field-effect transistor (FET) with an insulated gate. Its conductivity is controlled by the voltage applied to the gate. MOSFETs are used for switching or amplifying signals. The ability to change conductivity with the applied voltage is key to their function in amplifying or switching electronic signals. Today, MOSFETs are more common than bipolar junction transistors (BJTs) in both digital and analog circuits. The gate of a MOSFET is formed by silicon dioxide, which provides isolation by preventing direct charge flow from the gate to the conducting channel. MOSFETs are the most common transistors in digital circuits, with hundreds of thousands or millions included in memory chips or microprocessors. MOSFETs can be made with either p-type or n-type semiconductors. Complementary pairs of MOS transistors are used in CMOS logic circuits, which have very low power consumption. Why …