This course can also be taken for academic credit as ECEA 5631, part of CU Boulder’s Master of Science in Electrical Engineering degree.
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Diode - pn Junction and Metal Semiconductor Contact
This course is part of Semiconductor Devices Specialization
Instructor: Wounjhang Park
12,277 already enrolled
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(275 reviews)
What you'll learn
Analyze pn junction at equilibrium and under bias, capacitance and current characteristics, and breakdown behavior
Analyze metal-semiconductor contact at equilibrium and under bias, capacitance and current characteristics, nonrectifying contact and surface effects
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There are 4 modules in this course
In this module, we look at pn junction in equilibrium. Topics include: Device structure for pn junction, Energy band diagram at equilibrium for pn junction, Depletion approximation for step junction, Poisson's equation for step junction, Energy band diagram of pn step junction, Beyond depletion approximation, Poisson's equation, Energy band diagram for linearly graded junction, Energy band diagram for heterojunction, and Effect of band alignment for heterojunction.
What's included
5 videos4 readings1 quiz1 peer review1 discussion prompt
In this module on pn junction under bias, we will cover the following topics: Energy band diagram of pn junction under bias, Capacitance-voltage characteristics, Impact ionization, Avalanche breakdown, Avalanche breakdown voltages, Tunneling current, Zener breakdown, Energy band diagram of pn junction under forward bias, Continuity equation, Boundary conditions, Ideal diode equation, Long- and short-base diodes, Recombination and generation in depletion region, Non-ideal current, Effect of band alignment, and Diffusion and thermionic emission currents.
What's included
7 videos3 readings1 quiz1 discussion prompt
In this module on metal semiconductor contacts, we will cover the following topics: Device structure, Equilibrium energy band diagram, Electrostatic analysis, Energy band diagram under bias, Capacitance-voltage characteristics, Image charge, Dependence of barrier height on electric field, Energy band diagram of Schottky contact under bias, Thermionic emission current, Ohmic contact by heavy doping in semiconductor, Ohmic contact by low metal work function, Surface states, Fermi level pinning.
What's included
6 videos3 readings1 quiz1 peer review1 discussion prompt
In this module on LEDs, we will cover the follow topics: Basic operating principles of LEDs, Survey of LEDs, Blue LED and solid state lighting, Basic principle of semiconductor laser, Condition for net stimulated emission, Types of semiconductor laser, Photodiode, Avalanche photodiode, Solar cell operating principle, and I-V characteristics and power output.
What's included
4 videos3 readings1 quiz1 discussion prompt
Instructor
Offered by
Recommended if you're interested in Electrical Engineering
University of Colorado Boulder
Korea Advanced Institute of Science and Technology(KAIST)
Korea Advanced Institute of Science and Technology(KAIST)
University of Colorado Boulder
Build toward a degree
This course is part of the following degree program(s) offered by University of Colorado Boulder. If you are admitted and enroll, your completed coursework may count toward your degree learning and your progress can transfer with you.¹
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