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Questions and Answers
What is a semiconductor?
What is a semiconductor?
A material with electrical conductivity between that of a conductor and an insulator, whose resistivity falls as its temperature rises.
How can the conducting properties of a semiconductor be altered?
How can the conducting properties of a semiconductor be altered?
By introducing impurities ('doping') into the crystal structure.
What is created when two differently doped regions exist in the same crystal?
What is created when two differently doped regions exist in the same crystal?
A semiconductor junction.
What is the basis of diodes, transistors, and most modern electronics?
What is the basis of diodes, transistors, and most modern electronics?
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Name two examples of semiconductors.
Name two examples of semiconductors.
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What is the relationship between the resistivity of a semiconductor and its temperature?
What is the relationship between the resistivity of a semiconductor and its temperature?
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How are the conducting properties of a semiconductor altered in useful ways?
How are the conducting properties of a semiconductor altered in useful ways?
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What are the charge carriers involved in the behavior of semiconductor junctions?
What are the charge carriers involved in the behavior of semiconductor junctions?
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What are some applications of gallium arsenide as a semiconductor?
What are some applications of gallium arsenide as a semiconductor?
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Why is silicon considered a critical element for fabricating most semiconductors?
Why is silicon considered a critical element for fabricating most semiconductors?
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