Advanced transistors (FinFET and GAA)

Which correctly describes a GAA (gate-all-around) transistor?

  1. AThe gate covers only the top of the channel
  2. BThe gate surrounds the entire perimeter of the channel, such as nanosheets
  3. CIt has no gate and operates with only a source and drain
Show answer and explanation

Answer: B. The gate surrounds the entire perimeter of the channel, such as nanosheets

A GAA transistor stacks thin sheet-like (nanosheet) or wire-like channels and surrounds each completely with the gate. Gate control is even better than in a FinFET, and GAA has been adopted in leading-edge logic as the next-generation transistor after the FinFET.

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More Advanced transistors (FinFET and GAA) questions

  1. Which describes a short-channel effect in MOSFETs?
  2. What is the main reason for using high-k (high-dielectric-constant) materials for the gate insulator?
  3. What is the main purpose of applying strain (stress) to a transistor's channel?
  4. Which correctly describes EOT (equivalent oxide thickness)?
  5. Which correctly describes the SOI (silicon on insulator) structure?