Environment, health and safety

What is the role of the large red emergency off (EMO) button on semiconductor manufacturing equipment?

  1. ATo immediately stop the tool's operation and the supply of hazardous energy when something abnormal or dangerous occurs
  2. BTo raise the tool's production speed
  3. CTo switch the tool's screen display
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Answer: A. To immediately stop the tool's operation and the supply of hazardous energy when something abnormal or dangerous occurs

The EMO (Emergency Off) button stops the tool and cuts off hazardous energy such as electricity and gas with a single press when a person is in danger or the tool malfunctions. It has a conspicuous color and shape and is mounted within easy reach so anyone can press it at once.

  • A. Correct. It is a button for stopping the tool immediately in an emergency.
  • B. It does not change production speed.
  • C. It is not a button for switching the display.
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