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Experts Urge Sustainable Design as India’s Chip Industry Expands
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.
A panel at Semicon India 2026 warned that water could constrain India’s semiconductor expansion.
A single mega fab may use about 10–15 million gallons of water daily, making groundwater dependence unsustainable.
Experts urged fabs to recycle and reuse water, with a target of 80–95% circularity compared with the current 40–50%.
Designing separate wastewater streams and sustainability systems early can avoid more difficult and costly retrofits later.
The panel also identified PFAS chemicals as a long-term environmental challenge requiring industry-wide research and cooperation.
- Who
- Experts including Prateek Bhatt of Ecolab, Vaidya Bharadwaj of Tokyo Electron and Indumathy Nambi of IIT Madras participated in the panel.
- What
- The panel discussed water use, recycling, chemical management and other sustainability measures for India’s semiconductor industry.
- Where
- Semicon India 2026 in India.
- When
- The discussion took place on Saturday at Semicon India 2026; the report was published on September 19, 2026.
- Why
- Experts said sustainability systems must be built into fab designs to prevent water constraints and avoid technically and financially costly retrofits.
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”
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“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”
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