# Infineon semiconductor manufacturing expansion

> Developing situation record from CLSTR: https://clstr.news/situations/infineon-semiconductor-manufacturing-expansion
> Updated: 2026-10-30T04:21:10.000Z. Sources: 19. Developments: 3.

Infineon Technologies is expanding its global production capabilities through new facilities in Southeast Asia and Europe.

In Thailand, the company has commenced operations at a new backend manufacturing and wafer testing facility in Samut Prakan. Designed to complement existing Asian production lines, the site focuses on the assembly and final testing of power semiconductors for the automotive, industrial, and energy sectors. The facility features a modular design intended to allow for future workforce and production scaling.

Simultaneously, Infineon is investing approximately €1.1 billion in its Villach facility in Austria. This project aims to establish the world’s first high-volume manufacturing plant for gallium nitride (GaN) power semiconductors on 300mm wafers. Supported by €319 million in state aid under the European Chips Act, the investment is intended to scale GaN technology for AI data centers, electric vehicles, and industrial systems, with production expected to begin by the end of 2027.

By utilizing 300mm wafers rather than the industry-standard 200mm, the Villach facility is expected to produce approximately 2.3 times more chips per cycle, which is intended to significantly improve manufacturing economics. The project is scheduled to continue through 2034, and Austrian officials have characterized the expansion as one of the largest single investments in the nation’s high-tech history, aimed at bolstering Europe’s technological sovereignty.

Recent developments highlight that Infineon is currently developing GaN power conversion solutions for NVIDIA’s 800V AI data center architecture to improve efficiency as rack power consumption increases. While the GaN market for consumer fast-charging has faced declining margins due to price competition, the company is shifting focus toward high-growth sectors such as automotive onboard chargers, 48V auxiliary power supplies, and AI server power systems.

## Claims

- Infineon is investing approximately €1.1 billion in its Villach site in Austria. (reported by 16 sources)
- The facility will be the world's first high-volume manufacturing plant for gallium nitride (GaN) power semiconductors on 300mm wafers. (reported by 14 sources)
- The investment will continue through 2034. (reported by 14 sources)
- Production is scheduled to start by the end of 2027. (reported by 13 sources)
- The European Commission approved €319 million in state aid for the project. (reported by 10 sources)
- The investment is supported under the European Chips Act. (reported by 9 sources)
- 300mm wafers can produce approximately 2.3 times more chips than 200mm wafers. (reported by 6 sources)
- Infineon and NVIDIA are collaborating on 800V DC architectures for AI data centers. (reported by 2 sources)

## Timeline

### 2026-10-30: Infineon to build world first 300mm GaN mass production line in Austria

Infineon will build the first 300mm GaN mass production line in Austria, backed by 319 million euros in EU subsidies, to target the growing AI data center and automotive markets.

2 sources. https://clstr.news/cluster/infineon-to-build-world-first-300mm-gan-production-line-in-austria

### 2026-10-27: Infineon to invest €1.1 billion in Austrian semiconductor facility

Infineon is investing €1.1 billion in its Villach, Austria site to build the world's first high-volume 300mm gallium nitride chip production facility by 2027.

17 sources. https://clstr.news/cluster/infineon-to-invest-11-billion-in-austrian-chip-production

### 2026-10-01: Infineon opens new semiconductor manufacturing facility in Thailand

Infineon Technologies has opened a new modular semiconductor backend manufacturing and wafer testing facility in Samut Prakan, Thailand, to diversify its Asian production network.

4 sources. https://clstr.news/cluster/infineon-opens-new-semiconductor-manufacturing-facility-in-thailand

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Cite as: Infineon semiconductor manufacturing expansion. CLSTR, https://clstr.news/situations/infineon-semiconductor-manufacturing-expansion