Drift current practice problems
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A piece of silicon is n-type with a uniform donor doping concentration of ND = 2.0e+17 cm-3.
The electron mobility is μn = 591 cm2/Vs.
What are the conductivity and resistivity of this silicon?
A resistor with resistance R = 4.5 kΩ will be made using this silicon.
The resistor's length is L = 90 μm and the thickness is t = 1 μm.
How wide should the resistor be?