Semiconductor Devices · Chapter 2 · Instructor: Prof. Mohammad Razaghi
Four animations and six interactive labs that run in any browser, with no installation, built on the exact model of Chapter 2 of Tsividis and McAndrew. The lab models are also in the Colab notebook.
Electrons flow through the wire until the Fermi levels line up; V_FB undoes it.
Animation 2Charges in the silicon and the bands, from accumulation to strong inversion.
Animation 3Deep depletion and the slow build-up of the inversion layer by thermal generation.
Animation 4Which charge answers the small signal, at low and at high frequency.
Bands, Fermi levels and surface carriers as the gate voltage sweeps.
Visualization 2ψS(VGB), depletion and inversion charge, and the five regions.
Visualization 3Potential balance: oxide drop versus band bending.
Visualization 4Exact inversion charge against the weak and strong approximations.
Visualization 5Low- and high-frequency capacitance, V_FB, V_T and the effect of Q′o.
Visualization 6Carriers, field and potential versus depth, with zoom.