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Electronics : Semiconductor - A thorough understanding
Rating: 4.1 out of 5(106 ratings)
7,515 students

Electronics : Semiconductor - A thorough understanding

Learn the fundamentals of Semiconductors...Join the students over 3000 across the world..
Created bySumanta kumar Pal
Last updated 9/2017
English

What you'll learn

  • Understand the fundamentals of Semiconductors.
  • Learn the Energy Band concept.
  • Classify materials w.r.t. Energy Band concept.
  • Learn about Direct band gap and Indirect band gap Semiconductors.
  • Learn Intrinsic semiconductor : Fundamentals,Theory and Problems.
  • Understand Extrinsic Semiconductor : Fundamentals, Concept of Doping, P-type and N-type Semiconductor.
  • Learn the concept of Drift velocity, Free-path, Mobility.
  • Understand the relation among current density, mobility and conductivity.

Course content

2 sections • 15 lectures • 2h 13m total length

  • Semiconductor : Introduction3:36

    Explore the basics of conductors, semiconductors, and insulators by examining resistivity and how these materials are classified.

  • Semiconductor : Material2:36

    this lecture surveys materials used as semiconductors, dividing them into elemental and compound categories, with inorganic and organic compounds, and previews energy band concepts for the next class.

  • Semiconductor : Energy Band Diagram19:04

    Explore the energy band diagram of silicon, detailing outer-shell electrons, valence and conduction bands, band gaps, and how external energy like heat promotes electrons to conduct in a crystal.

  • Semiconductor : Features of Energy Band Diagram6:23

    This lecture explains the energy band diagram of a crystal, detailing energy levels formed by atoms and how the conduction band can be empty when electrons occupy lower levels.

  • Semiconductor : Fermi Dirac distribution & Fermi level10:23

    Explain the Fermi-Dirac distribution and Fermi level, showing how occupancy probability for a given energy depends on energy and temperature, including half occupancy at the Fermi level.

  • Semiconductor : Classification of materials w.r.t Energy Band Diagram11:03

    Classify materials via energy band diagrams, highlighting valence and conduction bands and the gap size. Insulators resist conduction due to large gaps; semiconductors conduct modestly at room temperature via electrons.

  • Semiconductor : Electron concentration in conduction band14:25

    Explore how electron concentration in the conduction band relates to the density of states and energy levels, and how occupancy probabilities and temperature shape state populations in semiconductors.

  • Semiconductor : Electron concentration in C.B (contd.)10:30

    Derive the final expression for electron concentration in the conduction band using the effective density of states N_C, the conduction-band edge E_C, and the occupancy probability.

  • Semiconductor : Hole concentration in V.B18:40

    Explore hole concentration in the valence band and derive a differential equation to model carrier density in semiconductors.

  • Quiz on section 1 topics

Requirements

  • Basic knowledge of science
  • Fundamental ideas of current, voltage and electric field
  • High school mathematics

Description

Learn the fundamentals of Semiconductors and take the first leap to the world of Electronics. This course will be very helpful for students with great interest towards science and especially electronics. Finally ,the course is so  designed that if anyone goes from lecture 1 to last lecture the entire  subject can be thoroughly understood easily. So lets have a highlight of  the entire course quickly-


  • Learn the basics of Semiconductors.

  • Which materials are used as Semiconductors.

  • Energy Band concept and classification of materials w.r.t. this concept.

  • Thorough discussion on Intrinsic and Extrinsic semiconductors.

  • Detailed discussion on fermi dirac distribution and fermi level. It is a very important concept and help students to further clarify the understanding of semiconductors. 

  • Thorough discussion on electron concentration with mathematical expressions.

  • Thorough discussion on hole concentration with mathematical expressions.

  • Quiz questions have also been included for clarifying concepts.

  • Discussion on thermal equilibrium and Mass action law for intrinsic semiconductors.

  • Concept of intrinsic carrier concentration and derivation of its mathematical expression.

  • Identification of Fermi level for an intrinsic semiconductor.

  • Relation among drift velocity, current density and conductivity for a semiconductor material.

  • Discussion on frequently asked questions regarding Semiconductors.

  • Detailed discussion on the topic will help students to crack different competitive examinations.

Who this course is for:

  • The course is for those who love electronics and love to explore the world of electronics

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