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Deliberate addition of an impurity to a semiconductor is called:

AFusing
BBiasing
CEtching
DDoping
Answer & Solution
Correct answer: D. Doping
1. Pure silicon conducts only feebly. 2. Adding chosen foreign atoms raises the carrier count. 3. That deliberate addition is called doping. 4. So the answer is doping. _Source: syllabus Physics, Ch 14 'Semiconductor Electronics'_
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