EE 436 Physics of Transistors G. Tuttle

Drift current practice problems
Refresh the page to get a new problem.


A piece of silicon is n-type with a uniform donor doping concentration of ND = 5.0e+16 cm-3.
The electron mobility is μn = 1.01e+3 cm2/Vs.

What are the conductivity and resistivity of this silicon?

A resistor with resistance R = 3 kΩ will be made using this silicon.
The resistor's length is L = 80 μm and the thickness is t = 3 μm.
How wide should the resistor be?

Answer