Process materials (gases and chemicals)

What is the chemical name of IPA, used for drying after cleaning and similar purposes?

  1. AMethanol
  2. BEthanol
  3. CIsopropyl alcohol (2-propanol)
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Answer: C. Isopropyl alcohol (2-propanol)

IPA stands for isopropyl alcohol (2-propanol). It mixes readily with water and has low surface tension, so it is used to displace water on wafers after cleaning and dry them. Because it is a flammable liquid, it is used with safety measures such as static control and ventilation.

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