Silicon wafers

Which wafer diameter is currently mainstream in leading-edge logic and memory production lines?

  1. A150 mm
  2. B200 mm
  3. C300 mm
Show answer and explanation

Answer: C. 300 mm

Leading-edge production lines mainly use 300 mm wafers. A larger diameter yields more chips per wafer, lowering cost per chip. Wafers of 200 mm and smaller are still used to make power semiconductors, analog chips, sensors and more.

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More Silicon wafers questions

  1. Which is a characteristic of single-crystal silicon made by the FZ (floating zone) method?
  2. What is the main role of the notch (small cutout) on the edge of a silicon wafer?
  3. Which correctly describes gettering?
  4. Which impurity is incorporated in relatively large amounts from the crucible into silicon crystals grown by the CZ method?
  5. What is the most appropriate order of steps for making wafers from a single-crystal ingot?