I can't say for certain, I am guessing they may use it to clean in between layers (additive and subtractive)? This article[1] supports the high water use but do

I can't say for certain, I am guessing they may use it to clean in between layers (additive and subtractive)? This article[1] supports the high water use but does not explain in greater detail to what ends it is specifically used. [1] https://www.sustainalytics.com/esg-research/investors-esg-blog/waste-not-want-not-water-use-in-the-semiconductor-industry#:~:text=The%20demand%20for%20chips%20is,the%20contamination%20of%20electronic%20devices https://www.sustainalytics.com/esg-research/investors-esg-bl....