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Experts Urge Sustainable Design as India’s Chip Industry Expands

Experts Urge Sustainable Design as India’s Chip Industry Expands
‘Water could become a constraint on expansion of semiconductor industry’ · thehindubusinessline.com

Semiconductor factories make the tiny components used in many electronic devices.

These factories need very large amounts of clean water, energy and chemicals.

Experts said India should plan how to save and reuse water before building new factories.

One large factory may use 10–15 million gallons of water every day.

Using groundwater for that much water would not be sustainable.

Experts suggested separating different wastewater streams so they can be treated and reused more easily.

They also warned that smaller chip designs may require more rinsing and therefore more water.

Another concern is PFAS, chemicals that can remain in the environment for a long time.

Researchers and companies will need to work together to find safer alternatives.

Key facts

Water use per mega fab
About 10–15 million gallons per day
Current water circularity
Around 40–50% globally in semiconductor manufacturing
Suggested water circularity target
80–95%
Main water strategy
Recycle and reuse water while minimising environmental discharge
Design recommendation
Segregate wastewater streams instead of blending them
Chemical concern
Per- and polyfluoroalkyl substances (PFAS), also called “forever chemicals”
Industry challenge
Smaller chip nodes may require more rinses and increase water consumption

Quotes

Vaidya Bharadwaj

Tokyo Electron representative who discussed PFAS and the need for industry collaboration

“Right now we are in a hurry to probably start with the production and if we do not incorporate this during the design stage, it’s going to be even more technically and financially heavy to do those kind of retrofits”
thehindubusinessline.com
“It’s an engineering problem that a single company or single country cannot solve. So it needs a lot of R&D. It needs time to solve”
thehindubusinessline.com

Sources

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