Question

factor that control the conductivity of a semi conductor

Answer 1

Explanation:

Since conductivity directly depends on electron mobility and the concentration of electrons in the conduction band, which increases with increasing temperature according to the equation near the end of the N-Type Semiconductor section, the conductivity also increases.

Answer 2

The conductivity of semiconductors may easily be modified by introducing impurities into their crystal lattice. The process of adding controlled impurities to a semiconductor is known as doping. The amount of impurity, or dopant, added to an intrinsic (pure) semiconductor varies its level of conductivity.