MOSFET

What structure does the "MOS" in MOSFET stand for?

  1. AMetal-Oxide-Semiconductor
  2. BMajority carrier-Minority carrier-Substrate
  3. CMemory-Output-Signal
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Answer: A. Metal-Oxide-Semiconductor

MOS stands for Metal-Oxide-Semiconductor, the stack of a gate electrode (metal), a gate insulator (oxide) and the semiconductor substrate. Today the gate electrode may be polysilicon or metal and the insulator a high-k material, but the name is still used.

  • A. Correct. It is a metal-oxide-semiconductor stack.
  • B. It is not an abbreviation for carrier types.
  • C. It is not an abbreviation for circuit functions.
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More MOSFET questions

  1. Besides the gate, source and drain, what is the fourth terminal of a MOSFET?
  2. Which carriers carry the current in the channel of an n-channel MOSFET?
  3. What does the "C" (complementary) in CMOS mean?
  4. When a MOSFET is used as a switch, which statement correctly describes its on-resistance?
  5. For a typical MOSFET in an integrated circuit, which statement about the source and drain is correct?