Doping is a process that adds
A) phosphorus ions to the crystalline structure of silicon.
B) aluminum ions to the crystalline structure of silicon.
C) any minor impurity to an element or compound.
D) a positive or negative charge to the lattice of a crystal.
E) all of these

Question

Quizplus · Accepted Answer

Doping in the context of semiconductor physics involves adding a small amount of impurity to an intrinsic semiconductor (like silicon) to change its electrical properties. Phosphorus ions can be added to create n-type semiconductors, while aluminum ions can be added to create p-type semiconductors. Both processes introduce a positive or negative charge to the crystal lattice, effectively changing the electrical conductivity of the material. Therefore, all the options provided describe aspects of the doping process.

Doping Is a Process That Adds