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Introduction to Semiconductor Devices

Prof. Naresh Kumar Emani · IIT Hyderabad

Start with lecture 1 At NPTEL

About

Semiconductor devices are at the heart of the present technological revolution, and they are increasingly prominent in our daily life. This course develops the basic concepts necessary to understand the fundamentals of semiconductor devices. We will apply these concepts to gain insight into the operation of various semiconductor devices such as pn junction diodes, MOSFETs, solar cells and LEDs. This course is primarily directed for undergraduate students pursuing ECE/EE or related programs.

INTENDED AUDIENCE : Any Interested Learner.

INDUSTRY SUPPORT : Semiconductor Industry – Any company working in Semiconductor IC Design and Testing Companies in Power Electronics and Power Systems domain

Lectures

Week 1

  1. 1.1 Types of Semiconductors YouTube
  2. 1.2 Classical Vs Quantum Mechanics YouTube
  3. 1.3 Electrons in infinite and finite 1D potential well YouTube
  4. 1.4 3D potential well model of atom and Bohr's model YouTube
  5. 1.5 Covalent bonds and inter-atomic interactions in Silicon YouTube
  6. 1.6 Energy band formation YouTube
  7. 1.7 Electron hole pair generation YouTube
  8. 1.8 Direct and Indirect bandgap semiconductors YouTube
  9. 1.9 Energy levels in infinite and finite potential wells (short demo) YouTube

Week 2

  1. 2.1 Effective mass in Semiconductors YouTube
  2. 2.2 Intrinsic carrier density YouTube
  3. 2.3 Doping and extrinsic semiconductors YouTube
  4. 2.4 Fermi level in intrinsic semiconductors YouTube
  5. 2.5 Fermi level in extrinsic semiconductors YouTube
  6. 2.6 Temperature dependence of Fermi level YouTube
  7. 2.7 Charge neutrality relationship YouTube
  8. 2.8 Drift current and energy band representation of kinetic energy of carriers YouTube

Week 3

  1. 3.1 Semiconductor bands in a electric field YouTube
  2. 3.2 Diffusion current YouTube
  3. 3.3 Non-uniform doping YouTube
  4. 3.4 Equilibrium Vs Nonequilibrium carrier response YouTube
  5. 3.5 Minority carrier diffusion equation (MCDE) - Example problems YouTube
  6. 3.6 Quasi Fermi level in nonequilibrium conditions YouTube
  7. 3.7 Quasi Fermi level and minority carrier diffusion length YouTube
  8. 3.8 Semiconductor device fabrication YouTube

Week 4

  1. 4.1 PN Junctions - An introducton YouTube
  2. 4.2 PN Junction electrostatics YouTube
  3. 4.3 Energy band diagram of PN junction YouTube
  4. 4.4 Depletion width and peak electric field YouTube
  5. 4.5 PN junction electrostatics - examples YouTube
  6. 4.6 Demo of PN Junction Lab on Nanohub YouTube

Week 5

  1. 5.1 Forward and reverse biased PN junctions YouTube
  2. 5.2 Minority carrier injection in PN junctions YouTube
  3. 5.3 Current in forward biased PN junction YouTube
  4. 5.4 Current in reverse biased PN junction YouTube
  5. 5.5 Depletion capacitance in PN junction YouTube
  6. 5.6 Non-idealities in PN junction diode YouTube
  7. 5.7 Nanohub Demo - PN Junction with applied bias YouTube

Week 6

  1. 6.1 Schottky barrier in metal-semiconductor junction YouTube
  2. 6.2 Current flow across a Schottky barrier YouTube
  3. 6.3 Ohmic vs rectifying contacts YouTube
  4. 6.4 An Ideal MOS Capacitor YouTube
  5. 6.5 Operating regimes of a MOSCAP YouTube
  6. 6.6 Simplified band diagrams of accumulation and depletion in MOSCAP YouTube
  7. 6.7 Inversion in a MOSCAP YouTube

Week 7

  1. 7.1 NMOSCAP in accumulation mode YouTube
  2. 7.2 NMOSCAP in depletion mode YouTube
  3. 7.3 NMOSCAP in inversion mode YouTube
  4. 7.4 Exact solution vs delta-depletion approximation YouTube
  5. 7.5 Threshold voltage in a MOSCAP YouTube
  6. 7.6 Nanohub Demo - MOSCAP tool YouTube

Week 8

  1. 8.1 Non-ideal MOS Capacitor YouTube
  2. 8.2 MOSCAP Capacitance-Voltage (CV) Characteristics YouTube
  3. 8.3 Example problems with MOSCAPs YouTube
  4. 8.4 Impact of doping, oxide thickness and temperature on CV YouTube
  5. 8.5 Nanohub Demo - MOS CV YouTube

Week 9

  1. 9.1 Introduction to MOSFET YouTube
  2. 9.2 Operating modes of a MOSFET YouTube
  3. 9.3 IV Characteristics of a long channel MOSFET YouTube
  4. 9.4 Example problems with MOSFETs YouTube
  5. 9.5 MOSFET device metrics YouTube
  6. 9.6 CMOS Technology YouTube

Week 10

  1. 10.1 MOSFET Scaling and technology nodes YouTube
  2. 10.2 Limits of scaling YouTube
  3. 10.3 Current characteristics of a short channel MOSFET YouTube
  4. 10.4 Threshold voltage characteristics of short channel MOSFET YouTube
  5. 10.5 MOSFETs in the 21st century YouTube

Week 11

  1. 11.1 Optical absorption and bandgap YouTube
  2. 11.2 Introduction to solar cells YouTube
  3. 11.3 Efficiency of a solar cell YouTube
  4. 11.4 Types of photodetectors YouTube
  5. 11.5 PIN and avalanche Photodectectors YouTube
  6. 11.6 Photodetector metrics YouTube

Week 12

  1. 12.1 Radiative absoption and emission processes YouTube
  2. 12.2 Materials for optoelectronic devices YouTube
  3. 12.3 Operation of a light emitting diode (LED) YouTube
  4. 12.4 LED emission spectrum YouTube
  5. 12.5 Stimulated emission and lasing YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Hyderabad
Department
Electrical Engineering
Teacher
Prof. Naresh Kumar Emani
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge. Coordinated by IIT Madras.
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