Re: transistor doping
Hi~~
Intrinsic semiconductor is referred for the semicondoctor material without any imputiries. Semiconductor material with some impurities is called extrinsic semiconductor. By the way, the impurities other than the dopants used in the semiconductor fabrication processing are not used becaused of the inactivity of the energy levels introduced by them. The defects caused by the differences in the atom radii between silicon and dopants can be minimized by introducing some atoms which will not add some inactive energy levels between energy gap.
Bye~~