Infineon plans €1.1bn high-volume 300mm GaN fab in Austria

Infineon Technologies is investing roughly €1.1 billion through 2034 to build what it calls the world's first high-volume manufacturing facility for next-generation gallium nitride (GaN) power semiconductors on 300-millimeter wafers. The site is Villach, Austria, and the company announced it today, October 27, 2026.

Production is scheduled to start in late 2027, and the money goes into existing cleanroom space and modernized infrastructure rather than a bare field. Bloomberg Tech ran the headline today, and German wire coverage from dpa, carried by Badische Neueste Nachrichten, flagged the target customers: GaN chips that matter, among other uses, for AI data centers. That is the AI data center connection, and it is a glamorous one. Somebody has to feed those racks, and apparently it will be Villach.

The money and the muscle

Here is the headline number: €1.1 billion over roughly eight years. Of that, €319 million is backed by the European Chips Act. The European Commission has approved the state aid. The formal grant confirmation from Austria's Federal Ministry for Economy, Energy and Tourism is still pending, and the release says it is expected within the set deadlines.

So the public money is approved in Brussels but not yet stamped in Vienna. Fine print, yes, but the kind of fine print that comes with a ministry and a ribbon-cutting.

Infineon Austria employs about 5,800 people, around 4,800 of them in Villach. The announcement gives no figure for new jobs. Economy Minister Wolfgang Hattmannsdorfer offered a rule of thumb instead: one job in the chip industry can, by calculation, support six more in the wider economy. He also compared chips to oil, saying they are as important to tomorrow's economy as oil was to yesterday's.

Why 300mm is the whole story

The size of the wafer is where the economics live. According to Infineon, chip production on 300mm wafers is more advanced and far more efficient than on 200mm wafers, because the larger diameter yields 2.3 times as many chips per wafer.

The company is not starting from zero. It says it processed the world's first 300mm GaN wafers two years ago. Now it wants to turn that milestone into volume production.

CEO Jochen Hanebeck framed it as a statement about Europe. In the company's words, the investment is a clear commitment to strengthening the European semiconductor ecosystem and Europe's technological sovereignty, and it makes Infineon the first company in the world to bring GaN power electronics into volume manufacturing.

The market is the other half of the pitch. The release cites the Yole Report 2026, in which analysts expect the GaN power semiconductor market to reach about $3.5 billion in 2031, growing around 35 percent a year between 2025 and 2031.

The politics in the room

This is a very political chip. Austrian Chancellor Christian Stocker called it one of the largest single investments in the history of Austrian high-tech industry. He tied it to the government's industrial strategy, which aims to put Austria back among the world's ten leading industrial nations by 2035.

Hattmannsdorfer supplied the sobering context: Europe accounts for only around 10 percent of global chip production. He also said Austria ranks first in the EU for corporate semiconductor research spending relative to population. Infineon Austria CEO Sabine Herlitschka called the project a beacon that brings Austrian innovation into industrial application and secures highly qualified jobs.

What to watch

The announcement leaves several things open:

• Capacity. No target for wafer output per month or year once the facility is at full capacity.
• Jobs. No count of net-new positions in Villach or across Austria.
• Financing. No split between Infineon's own capital spending and debt or other outside financing.
• The grant. Vienna's formal confirmation of the €319 million has no firm date beyond "within the set deadlines."

The big test is late 2027, when production is supposed to begin. Until then, this is a very large promise with a very large number attached, and I adore both. Europe wants to matter in the chips that power the AI data center buildout, and today it put real euros behind it.