MOSFET Construction and Operation Quiz
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Questions and Answers

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?

    <p>Through metallic contacts to the doped regions</p> Signup and view all the answers

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

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

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

    <p>To change the electrical properties of the semiconductor by applying voltage</p> Signup and view all the answers

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

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

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

    <p>Through metallic contacts to the doped regions</p> Signup and view all the answers

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

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

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

    <p>The substrate extends all the way to the oxide layer</p> Signup and view all the answers

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