Semiconductor Doping: Adding Impurities Process

The process of intentionally introducing impurities into an extremely pure semiconductor crystal is called doping. This process is fundamental to semiconductor manufacturing.

Purpose of Doping

Adding specific impurity atoms (dopants) alters the electrical properties of the semiconductor. It increases the conductivity by either increasing the number of free electrons (n-type doping) or holes (p-type doping).

Analyzing Options

• Doping: This is the correct term for adding impurities to semiconductors to control their electrical characteristics.
• Polling: Typically refers to voting or surveying.
• Intrusion: Means forcing entry or something unwelcome entering.
• Pugging: Refers to blocking or stopping up something, often used in plumbing or furnace contexts.

Therefore, doping is the accurate term for adding impurities to a semiconductor.