EE 230 Electronic Circuits & Systems G. Tuttle

Drift current practice problems
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A piece of silicon is p-type with a uniform acceptor doping concentration of NA = 6.0e+18 cm-3.
The hole mobility is μp = 52 cm2/V·s.
What are the conductivity and resistivity of this silicon?

A rectangular resistor is made in this silicon.
The resistor dimension are: W = 1 μm, L = 40 μm, t = 0.125 μm.
What is the resistance of the resistor?

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