Deep Dive: E6A04
The correct answer is C: Acceptor impurity. What is the name given to an impurity atom that adds holes to a semiconductor crystal structure is acceptor impurity. Acceptor impurities create holes (P-type). For amateur radio operators, this is important for semiconductor knowledge. Understanding this helps when working with semiconductors.
Why Other Answers Are Wrong
Option A (Insulator impurity): Incorrect. Insulator impurity isn't the name - acceptor impurity adds holes. Insulator impurity isn't the name. Option B (N-type impurity): Incorrect. N-type impurity adds electrons, not holes - acceptor impurity adds holes. N-type impurity is wrong. Option D (Donor impurity): Incorrect. Donor impurity adds electrons, not holes - acceptor impurity adds holes. Donor impurity is wrong.
Exam Tip
Impurity that adds holes = acceptor impurity. Think 'A'cceptor = 'A'dds 'H'oles (P-type). Acceptor impurities create holes (P-type). Not insulator, not N-type (electrons), not donor (electrons) - just acceptor.
Memory Aid
Impurity that adds holes = acceptor impurity. Think 'A'cceptor = 'H'oles. Acceptor impurities create holes (P-type). Important for semiconductor knowledge.
Real-World Example
An impurity atom that adds holes to a semiconductor crystal structure: It's called an acceptor impurity. Acceptor impurities accept electrons, creating holes in the crystal structure. This is the name - acceptor impurity.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E6A
Reference: 2024-2028 Question Pool · E6 - Circuit Components
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E6A topic.