Semiconductors

ASU lands $2.06M federal grant to test fab water reuse

ASU receives a $2,062,000 federal grant to pilot water reuse for chipmaking at MacroTechnology Works, even as Arizona's fab buildout races ahead of its water budget.

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Sophie Lindqvist
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Arizona State University will receive a $2,062,000 federal grant to pilot water-recycling methods for semiconductor manufacturing, the office of Sen. Ruben Gallego announced. The funding was secured by Sens. Gallego and Mark Kelly, alongside Reps. Greg Stanton and Yassamin Ansari.

What will the money actually buy?

The grant will fund tests at ASU's MacroTechnology Works, according to the press release. It targets water-reuse for front-end cleaning steps. The work sits at lab scale. ASU has not named a partner fab. No commercial fab has committed to license the resulting process.

The figure is small against Arizona's chip buildout. TSMC is expanding its Phoenix campus to a planned six fab modules. Intel's Ocotillo site spans four fabs. Each advanced fab consumes millions of gallons of ultrapure water per day. The grant covers research, not capacity.

Why is water the bottleneck?

Matthew Marinella, a professor in ASU's School of Electrical, Computer and Energy Engineering, described the cleaning problem. "Bits of metal atoms can ruin these transistors that they're trying to make, and so they go to great lengths to make sure everything's clean," Marinella said. He added that almost every process step ends with a water rinse.

Marinella said the industry avoids reuse today because contamination risk outweighs savings. "The idea behind that grant is that we can try it out, work out the kinks," he said. Pilot success would not translate to high-volume manufacturing without separate qualification work.

How does Arizona frame the deal?

Gallego pitched the grant in jobs and supply terms. "Making Arizona's semiconductor manufacturing industry even more water efficient will allow us to continue to create good-paying jobs and protect our state's water supply," Gallego said. Kelly framed it as national industrial policy. "This investment builds on that leadership by developing water reuse technology, creating good-paying jobs, strengthening American manufacturing, and protecting our water supply," Kelly said. "It's a win for Arizona."

The framing leans on workforce gains. It does not address Arizona's Colorado River allocation cuts, which fall hardest on the same basins that supply Phoenix-area fabs.

Does the grant change the state's water math?

Noah Shoup, a junior in mechanical engineering and president of the Sun Devil Semiconductor Club, said the money is small relative to demand. "We already have a lot, but the industry is growing like crazy here," Shoup said. He said more funded research could open careers. He did not quantify the gap.

Darin Korn, a senior in electrical engineering and the club's vice president of technical operations, called the work reputationally useful. "The public might see and understand the importance of semiconductors, but they don't want it taking all their water," Korn said. He added that reuse research could soften opposition. He offered no timeline for community acceptance.

What is not in the announcement

The press release names no matching state funds. It names no fab partner. It cites no volume target for reclaimed water. It does not state the grant's performance period or the lab tools it will buy. The release frames a research pilot as an industrial policy outcome.

The skeptical read

Water reuse is a real engineering problem. It is also a permitting problem. TSMC's Phoenix expansion has faced repeated local scrutiny over water draw, and Intel's Ocotillo site operates under state groundwater rules tightened in 2023. A $2.06 million academic pilot, run over a typical multi-year federal horizon, will not move those policy levers. The grant funds data. Industry adoption, not academia, decides whether the data is used.

What to watch next

  • Whether ASU publishes recovery-rate targets within twelve months of award.
  • Whether any Arizona fab signs a development agreement with the MacroTechnology Works team.
  • Whether the state's next Colorado River allocation decision cites the project.

The grant places a small bet on reuse. The bet grows meaningful only if a fab underwrites the next step.

Original: gallego.senate.gov

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Sophie Lindqvist

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News editor covering money, funding and market shifts around Semiconductors, chip manufacturing, hardware, AI compute at Chip Dispatch.

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