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A comment on Intel breaks ground on $20B Arizona plants as U.S. chip factory race heats up. Parent comment

Re:Intel breaks ground on $20B Arizona plants as U.S. chip f... by deelowe on Tuesday September 28, 2021 @09:37AM (#28682620)
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).
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Re:Intel breaks ground on $20B Arizona plants as U.S. chip f... by sanxiyn on Tuesday September 28, 2021 @01:18PM (#28685138)
Re 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

While this use requires extreme purity, it is not a big use in terms of volume.

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