Micron commits $3 billion to GlobalWafers' U.S. wafer expansion

Micron Technology will invest as much as $3 billion to support GlobalWafers' U.S. wafer manufacturing expansion, deepening the memory-chip maker's bet on domestic supply as it races to meet AI-driven demand.

"Investment supports GlobalWafers' U.S. wafer manufacturing expansion and other strategic investments for long-term supply assurance," Micron said in a statement on July 9.

The $3 billion commitment is part of Micron's previously announced $200 billion U.S. investment plan spanning multiple decades. GlobalWafers, one of the world's largest silicon wafer producers, supplies the raw substrates that chipmakers including TSMC and Samsung need to fabricate semiconductors. The investment strengthens a U.S. semiconductor ecosystem that has become a national priority, with Washington committing billions through the CHIPS Act to reshore fabrication capacity.

The deal comes as memory-chip makers race to lock in supply of critical materials. Micron's investment follows a $9.3 billion Hiroshima expansion backed by $3.1 billion in Japanese government subsidies and a long-term supply agreement with Ford Motor Co. for next-generation vehicle memory. SK Hynix, Micron's larger rival, announced a KRW 100 trillion ($65 billion) investment in Cheongju, South Korea, on July 2, allocating KRW 80 trillion to a new NAND fabrication plant.

A Supply Chain Under Pressure

The wafer investment addresses a bottleneck that extends beyond Micron. Wafer manufacturing — the upstream step where silicon ingots are sliced into thin discs — remains heavily concentrated in Asia. GlobalWafers, headquartered in Taiwan, operates facilities in the U.S., but expanding domestic capacity requires capital that the company alone may struggle to justify without customer commitments like Micron's.

Micron's data-center revenue reached $25 billion in its fiscal third quarter, more than the company's entire revenue a year earlier. The GlobalWafers investment ensures that as Micron scales output at its Manassas, Virginia facility — where it is qualifying 1α DRAM production by year-end — and at future U.S. fabs in Idaho and New York, the raw wafers will be available.

For investors, the $3 billion commitment shows that Micron sees the current memory upcycle as durable enough to justify long-term supply chain investments. Micron shares, which have surged about 700% over the past year, trade at elevated multiples that depend on sustained AI infrastructure spending. The investment in upstream capacity reduces one supply risk but does not address the cyclical demand risk that short-seller Michael Burry highlighted when he disclosed a short position against the stock last week.

This article is for informational purposes only and does not constitute investment advice.