This document discusses the metal-oxide-semiconductor field-effect transistor (MOSFET). It describes how a MOSFET is a semiconductor device that is commonly used in power electronics. It acts as an amplifier or switch for electronic signals. The document outlines the basic structure and mechanism of a MOSFET, and notes some of its advantages like no input current needed, high scalability, lower power consumption, and lower cost compared to other transistors. It also lists some common applications of MOSFETs such as in microprocessors, calculators, memories, logic gates, analog switches, amplifiers, and automobile sound systems.

1. •Fahad Alam Joy
2016-1-55-005
•Tonmoy Saha
2016-1-55-007
•Abdul Kader Jilani
2016-1-55-006

2.  A transistor is a semiconductor device used to amplif
y or switch electronic signals and electrical power.
 It is composed of semiconductor material with at leas
t three terminals .
 BJT
 FET
 JFET
 MOSFET

3.  The metal–oxide– semiconductor field-
effect transistor (MOSFET, MOS-
FET, or MOS FET) is a type of transistor used
for amplifying or switching electronic signals
n-channel MOSFET ; When the switch is pushed, the LED
lights up

4. Crosssection and circuit symbol of an n-type MOSFET

5.  A MOSFET (Metal Oxide Semiconductor Field Effect
Transistor) is a semiconductor device.
 A MOSFET is most commonly used in the field of
power electronics.
 A semiconductor is made of manufactured material
that acts neither like a insulator nor a conductor.

8. Mechanism

9. IV Characteristics

10. Non-Ideal I-V Characteristics

11.  No input current to control the load current.
 Increases the conductivity of the device.
 High Scalability
 Consume much less power, and allow higher
density
 The MOSFET is also cheaper.

12. •Used as a Microprocessors.
•Used in calculators, memories and in logic CMOS gates
•Used as analog switches, amplifier ,automobile sound
system.
•Also applied in audio-frequency
power amplifiers for public address systems