Presentation is loading. Please wait.

Presentation is loading. Please wait.

MOSFET The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device which is widely used for switching and amplifying.

Published byPenelope Webb Modified over 6 years ago

Similar presentations

Presentation on theme: "MOSFET The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device which is widely used for switching and amplifying."— Presentation transcript:

1 MOSFET The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device which is widely used for switching and amplifying electronic signals in the electronic devices.   The MOSFET is a core of integrated circuit and it can be designed and fabricated in a single chip because of these very small sizes.  

2 The MOSFET is a four terminal device with source(S), gate (G), drain (D) and body (B) terminals.
The body of the MOSFET is frequently connected to the source terminal so making it a three terminal device like field effect transistor. The MOSFET is very far the most common transistor and can be used in both analog and digital circuits.

3 Layer diagram of MOSFET

4 The transfer characteristic relates drain current (ID) response to the input gate-source driving voltage (VGS). Since the gate terminal is electrically isolated from the remaining terminals (drain, source, and bulk), the gate current is essentially zero, so that gate current is not part of device characteristics

5 Output characteristics of MOSFET

6 Advantage and limitation of MOSFET
JFETs can only be operated in the depletion mode whereas MOSFETs can be operated in either depletion or in enhancement mode. MOSFETs have input impedance much higher than that of JFETs. This is due to negligibly small leakage current. JFETs have characteristic curves more flat than those of MOSFETs indicating a higher drain resistance due to low resistance offered by channel compared in JFET. When JFET is operated with a reverse bias on the junction, the gate current IG is larger than it would be in a comparable MOSFET. The current caused by minority carrier extraction across a reverse-biased junction is greater, per unit area, than the leakage current that is supported by the oxide layer in a MOSFET. Thus MOSFET devices are more useful in electro-meter applications than are the JFETs. MOSFETs are somewhat easier to manufacture, they are more widely used than are the JFETs. MOSFET has higher speed of operation compared to JFET’s.

Download ppt "MOSFET The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device which is widely used for switching and amplifying."

Similar presentations

Lecture Metal-Oxide-Semiconductor (MOS) Field-Effect Transistors (FET) MOSFET Introduction 1.

Lecture Metal-Oxide-Semiconductor (MOS) Field-Effect Transistors (FET) MOSFET Introduction 1.
MICROWAVE FET Microwave FET : operates in the microwave frequencies

MICROWAVE FET Microwave FET : operates in the microwave frequencies
Field Effect Transistor characteristics

Field Effect Transistor characteristics
FET ( Field Effect Transistor)

FET ( Field Effect Transistor)
1 LINLITHGOW ACADEMY PHYSICS DEPARTMENT MOSFETs 2 MOSFETS: CONTENT STATEMENTS Describe the structure of an n-channel enhancement MOSFET using the terms:

1 LINLITHGOW ACADEMY PHYSICS DEPARTMENT MOSFETs 2 MOSFETS: CONTENT STATEMENTS Describe the structure of an n-channel enhancement MOSFET using the terms:
Transistors These are three terminal devices, where the current or voltage at one terminal, the input terminal, controls the flow of current between the.

Transistors These are three terminal devices, where the current or voltage at one terminal, the input terminal, controls the flow of current between the.
MOSFETs Monday 19 th September. MOSFETs Monday 19 th September In this presentation we will look at the following: State the main differences between.

MOSFETs Monday 19 th September. MOSFETs Monday 19 th September In this presentation we will look at the following: State the main differences between.
The metal-oxide field-effect transistor (MOSFET)

The metal-oxide field-effect transistor (MOSFET)
Chap. 5 Field-effect transistors (FET) Importance for LSI/VLSI –Low fabrication cost –Small size –Low power consumption Applications –Microprocessors –Memories.

Chap. 5 Field-effect transistors (FET) Importance for LSI/VLSI –Low fabrication cost –Small size –Low power consumption Applications –Microprocessors –Memories.
Storey: Electrical & Electronic Systems © Pearson Education Limited 2004 OHT 20.1 Field-Effect Transistors  Introduction  An Overview of Field-Effect.

Storey: Electrical & Electronic Systems © Pearson Education Limited 2004 OHT 20.1 Field-Effect Transistors  Introduction  An Overview of Field-Effect.
Semiconductor Devices III Physics 355. Transistors in CPUs Moore’s Law (1965): the number of components in an integrated circuit will double every year;

Semiconductor Devices III Physics 355. Transistors in CPUs Moore’s Law (1965): the number of components in an integrated circuit will double every year;
Field Effect Transistors Next to the bipolar device that has been studied thus far the Field Effect Transistor is very common in electronic circuitry,

Field Effect Transistors Next to the bipolar device that has been studied thus far the Field Effect Transistor is very common in electronic circuitry,
Chapter 5: Field Effect Transistor

Chapter 5: Field Effect Transistor
© 2013 The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill 5-1 Electronics Principles & Applications Eighth Edition Chapter 5 Transistors.

© 2013 The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill 5-1 Electronics Principles & Applications Eighth Edition Chapter 5 Transistors.
1 Metal-Oxide-Semicondutor FET (MOSFET) Copyright  2004 by Oxford University Press, Inc. 2 Figure 4.1 Physical structure of the enhancement-type NMOS.

1 Metal-Oxide-Semicondutor FET (MOSFET) Copyright  2004 by Oxford University Press, Inc. 2 Figure 4.1 Physical structure of the enhancement-type NMOS.
BJTs. Transistor The transistor is the main building block “element” of electronics. A transistor is a semiconductor device used to amplify and switch.

BJTs. Transistor The transistor is the main building block “element” of electronics. A transistor is a semiconductor device used to amplify and switch.
Field Effect Transistor. What is FET FET is abbreviation of Field Effect Transistor. This is a transistor in which current is controlled by voltage only.

Field Effect Transistor. What is FET FET is abbreviation of Field Effect Transistor. This is a transistor in which current is controlled by voltage only.
Field Effect Transistors

Field Effect Transistors
Junction Field Effect Transistor

Junction Field Effect Transistor
1 Other Transistor Topologies 30 March and 1 April 2015 The two gate terminals are tied together to form single gate connection; the source terminal is.

1 Other Transistor Topologies 30 March and 1 April 2015 The two gate terminals are tied together to form single gate connection; the source terminal is.

Similar presentations

Ads by Google