EE 230 Electronic Circuits & Systems G. Tuttle

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

Read the Drift current class notes.


A piece of silicon is n-type with a uniform donor doping concentration of ND = 1.0e+18 cm-3.
The electron mobility is μn = 164 cm2/V·s.
What are the conductivity and resistivity of this silicon?

You would like to make rectangular resistor with value R = 390 Ω in this silicon.
The resistor's length is L = 0.5 mm and the thickness is t = 9 μm.
What width should the resistor have?

Answers