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This is my understanding as well. There's a lot of washing of components involved in the process. Cleanliness is crucial to chip manufacturing so wafers are con
by deelowe 5y ago
This is my understanding as well. There's a lot of washing of components involved in the process. Cleanliness is crucial to chip manufacturing so wafers are constantly being washed. In newer lithographies, water is a crucial part of the the photo etching process itself (X-Ray IIRC).
- sanxiyn 5y agoRe use of water in lithography: it became necessary at 90 nm level (~2004), so it is not exactly new. Water is used to bend light. (Isn't it amazing?) https://en.wikipedia.org/wiki/Immersion_lithography https://en.wikipedia.org/wiki/Immersion_lithography While this use requires extreme purity, it is not a big use in terms of volume.