MOSFET Construction and Operation Quiz

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What material is the semiconductor substrate of a MOSFET typically made of?

Copper

Silicon (correct)

Aluminum

Carbon

What separates the gate terminal from the substrate in a MOSFET?

Silicon layer

Carbon layer

Oxide layer (correct)

Metal layer

What type of MOSFET changes the electrical properties of the semiconductor by applying voltage to the gate?

n-channel depletion type MOSFET

n-channel enhancement mode MOSFET (correct)

p-channel depletion mode MOSFET

p-channel enhancement mode MOSFET

How are the source and drain connected in the construction of MOSFETs?

Through metallic contacts to the doped regions Signup and view all the answers

What is the main difference in construction between enhancement mode MOSFETs and depletion mode MOSFETs?

The substrate extends all the way to the oxide layer in enhancement mode MOSFETs Signup and view all the answers

What is the purpose of the gate terminal in a MOSFET?

To change the electrical properties of the semiconductor by applying voltage Signup and view all the answers

What are the two types of depletion mode MOSFETs mentioned in the text?

n-channel depletion type and p-channel depletion mode Signup and view all the answers

How are the source and drain connected in the construction of MOSFETs?

Through metallic contacts to the doped regions Signup and view all the answers

What is the main difference in construction between n-channel and p-channel MOSFETs?

The type of charge carriers (electrons for n-channel, holes for p-channel) Signup and view all the answers

What is the distinguishing feature of enhancement mode MOSFETs in terms of substrate and oxide layer?

The substrate extends all the way to the oxide layer Signup and view all the answers

MOSFET Construction and Operation Quiz

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Questions and Answers

What material is the semiconductor substrate of a MOSFET typically made of?

What separates the gate terminal from the substrate in a MOSFET?

What type of MOSFET changes the electrical properties of the semiconductor by applying voltage to the gate?

How are the source and drain connected in the construction of MOSFETs?

What is the main difference in construction between enhancement mode MOSFETs and depletion mode MOSFETs?

What is the purpose of the gate terminal in a MOSFET?

What are the two types of depletion mode MOSFETs mentioned in the text?

How are the source and drain connected in the construction of MOSFETs?

What is the main difference in construction between n-channel and p-channel MOSFETs?

What is the distinguishing feature of enhancement mode MOSFETs in terms of substrate and oxide layer?

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