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Semiconductors: Definitions, Microprocessors, and Conductivity

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Semiconductors: Definitions, Microprocessors, and Conductivity

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Questions and Answers

What is the band of orbitals that accepts the electrons from the valence band called?

Conduction Band (correct)

Resistance Band

Valence Band

Energy Gap

What did Michael Faraday discover about electrical resistivity in 1833?

It decreases as temperature increases in silver sulfide (correct)

It remains constant regardless of temperature in silver sulfide

It increases as temperature increases in silver sulfide

It increases as temperature decreases in silver sulfide

What is the highest occupied energy band called?

Valence Band (correct)

Resistance Band

Energy Gap

Conduction Band

Where do most electrons remain bound to the atoms?

Valence Band Signup and view all the answers

In a conductor, can electrons move freely among the orbitals within an energy band?

Yes, because the energy gap is relatively large Signup and view all the answers

What type of material has a full valence band and an intermediate energy gap?

Semiconductor Signup and view all the answers

What is the effect of P-type doping on silicon?

It creates the effect of a positive charge Signup and view all the answers

Which element is used for P-type doping?

Gallium Signup and view all the answers

What is the main function of a p-n junction?

To control the behavior of the diode Signup and view all the answers

What happens when a p-n junction is formed?

Electrons from the n-type region diffuse across the junction and combine with holes Signup and view all the answers

What type of charge do holes have in P-type silicon?

Positive Signup and view all the answers

What does N-type doping result in?

An abundance of free electrons Signup and view all the answers

What happens to the fifth electron in N-type doping?

It's free to move around the lattice Signup and view all the answers

What is created when a hole is filled in a p-n junction?

+1 charge ion Signup and view all the answers

What is the main role of the depletion region?

To control diode behavior Signup and view all the answers

What happens at any temperature above absolute zero temperature in intrinsic silicon?

An electron in the lattice will be knocked loose from its position Signup and view all the answers