semiconductor

Semiconductor Device Presented To

Prof. Dr. Quazi Deen Mohd. KhusruDepartment of Electrical and

Electronics Engineering

Presented By-

Mursalin Khan Prio Nazrul Islam AzadJunayed HossainAbdullal- Al- MayinMohammad Shihab Suraia Islam Zerin

152-33-2686 152-33-2681 152-33-2707 152-33-2629 151-33-2334 151-33-2324

ContentSemiconductorCharacteristicsDiodeDopingI-V CharacteristicsRectifierTransistorUses of Semiconductors

Semiconductor Device An electronic components that exploit the electronic properties of semiconductor materials.

Types of Semiconductor Two types of Semiconductor –

Intrinsic Semiconductor Extrinsic Semiconductor

Energy Level Energy Gap is very less in order to conduct the electrons.

Characteristics Bipolar Charge Carrier.Conditionally Conductor.Temperature dependence on Carrier Concentration and Mobility.

Diode Diode is a Device with two electrode.A p-n junction diode is a two terminal device made up of Semiconductor Device.

Doping In n-type Silicon, Intrinsic Semiconductor doped with As/P/Sb Donor : As/P/Sb

Doping In p-type Silicon, Intrinsic Semiconductor doped with Al/B/GaAcceptor : Al/B/Ga

Forward Bias Resistance is very small.Hole from p-type material and electron from n-type able to cross over the junction.

Reverse Bias Resistance is very high. Reverse polarity causes a very small current to flows as both electrons and holes are pulled away From the junction.

I-V Characteristic :

Rectifier

Converts Alternating Currents to Direct Currents.

Types of Rectifier Two types of Rectifier-

Half-Wave Rectifier Full-Wave Rectifier

Transistor A semiconductor device used to amplify or switch electronic signal.

Transistor Consist of two p-n junction back to back.

Has three region -Emitter -Base -Collector

Semiconductor

Semiconductor is the foundation of modern day electronics.

Vacuum tube

IMB 701

14 nm transistors

Application

Semiconductor is the foundation of modern day electronics

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