Cleanrooms and equipment

Which is a major source of particles in cleanrooms, addressed by wearing cleanroom suits?

  1. AWorkers (people)
  2. BWafers
  3. CCeiling filters
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Answer: A. Workers (people)

People constantly shed skin flakes, hair and clothing fibers, making them a major source of particles in cleanrooms. Workers therefore wear full-body cleanroom suits, masks and gloves, and pass through an air shower before entering. Automation is also an important way to reduce particle generation.

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More Cleanrooms and equipment questions

  1. Which term refers to gaseous contaminants (acids, bases, organics, etc.) rather than particles in a cleanroom?
  2. In 300 mm wafer fabs, which system automatically transports FOUPs between tools along rails on the ceiling?
  3. Which facility at a cleanroom entrance blows strong jets of clean air at workers to remove dust from the surface of their clothing?
  4. What is the main reason temperature is held extremely constant in cleanrooms, especially in exposure areas?
  5. What is used with precision equipment such as exposure tools to suppress the effects of vibration transmitted from the floor?