Semiconductor Devices · Chapter 1 · Instructor: Prof. Mohammad Razaghi
Six animations and six interactive labs that run in any browser, with no installation, for Chapter 1 of Tsividis and McAndrew. The lab models are also in the Colab notebook.
Bonds break and re-form, holes hop, donors and acceptors tip the balance.
Animation 2Thermal motion, collisions and the small drift that makes the current.
Animation 3Spreading, source and sink, and the balance of drift and diffusion.
Animation 4Electrons flow until the Fermi levels align; the step a voltmeter never sees.
Animation 5A live drift-diffusion simulation: depletion, built-in field, forward and reverse bias.
Animation 6The gate builds the channel, the drain moves the electrons, pinch-off and body effect.
Doping, temperature, n₀p₀ = nᵢ² and the position of E_F in the gap.
Visualization 2Band bending, 60 mV per decade and quasi-Fermi levels.
Visualization 3Mobility, velocity saturation and which transport is faster.
Visualization 4Fermi-level alignment, contact steps and the ideal voltmeter.
Visualization 5Charge, field, potential, bands, I–V and C–V of an abrupt junction.
Visualization 6Gate voltage to drain current, weak to strong inversion.