Semiconductor Electronics: Materials, Devices and Simple Circuits — Formula Sheet
Madhya Pradesh Board · Class 12 · Physics
9 formulas from Semiconductor Electronics: Materials, Devices and Simple Circuits (Madhya Pradesh Board Class 12 Physics) on one page, grouped by topic.
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Formulas and Key Relations
1. Basic Classification of Solids
rho = 1/sigma
Metals: rho ~ 10^-2 to 10^-8 ohm m
Semiconductors: rho ~ 10^-5 to 10^6 ohm m
Insulators: rho ~ 10^11 to 10^19 ohm m
3. Intrinsic Semiconductor
n_e = n_h = n_i
I = I_e + I_h
4. Extrinsic Semiconductor
n_e >> n_h
n_h >> n_e
n_e n_h = n_i^2
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