Technology

How Semiconductor Fabs Use Water

Source

SemiEngineering

Published

Aug 25, 2025

TL;DR

AI Generated

Semiconductor fabs rely heavily on water for chip production, with ultra-pure water loops essential for various processes. While reports of high water usage raise concerns, most water is treated, recirculated, and reused internally, with evaporation being the primary loss pathway. Engineers focus on balancing water demand, investing in mitigation strategies, and being transparent about tradeoffs. The quality of water is crucial, with industrial reclaim plants and on-site filtration becoming standard. Segregation, reuse, and heat recovery are key strategies to optimize water usage and minimize true consumption, primarily driven by evaporation in cooling towers. Municipal planning and long-term water supply strategies play a significant role in supporting semiconductor facilities.

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