Amkor Technology invests $2 billion to build semiconductor manufacturing facility in Arizona

Construction on the new site in Peoria is expected to begin within days, with production anticipated to start in early 2028.
Sept. 10, 2025
3 min read

Amkor Technology has announced plans to build a new semiconductor packaging and test facility in Peoria, Arizona. The company, which provides semiconductor packaging and test services, is investing $2 billion into the project and expects to create 2,000 new jobs.

The facility will be built on a 104-acre site within the Peoria Innovation Core. This land was secured through a swap agreement that exchanged a previously designated 56-acre parcel within the Five North at Vistancia community. Construction is scheduled to begin in the coming days, with operations set to launch in early 2028.

The project was originally slated for a 56-acre development at Vistancia, but changed course after facing pushback from nearby residents; the City of Peoria ultimately cited market demands and increased project scope in moving to the new site.

The Peoria City Council unanimously approved the land swap and development agreement, ensuring the company could move forward with its revised plans. Once operational, the site will focus on advanced packaging and testing of semiconductors to support industries such as computing, communications, and automotive.

What people are saying 

In a recent quote, Giel Rutten, president and chief executive officer, Amkor Technology, said, “As the largest advanced packaging company in the U.S., Amkor is proud to invest in US semiconductor manufacturing and strengthen the US semiconductor supply chain. This new site offers the flexibility to meet growing customer demand and reinforces our commitment to U.S.-based chip manufacturing.”

Jason Beck, mayor, City of Peoria, added, “Today represents a historic milestone for the partnership between the City of Peoria and Amkor. By securing this land, we are not only bringing a $2 billion investment and 2,000 new jobs to our community, but we are further solidifying the important role Peoria will play in strengthening America’s critical semiconductor supply chain. This outcome demonstrates the power of strong partnerships and smart long-term planning.”

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About the Author

Thomas Wilk

Thomas Wilk

editor in chief

Thomas Wilk joined Plant Services as editor in chief in 2014. Previously, Wilk was content strategist / mobile media manager at Panduit. Prior to Panduit, Tom was lead editor for Battelle Memorial Institute's Environmental Restoration team, and taught business and technical writing at Ohio State University for eight years. Tom holds a BA from the University of Illinois and an MA from Ohio State University

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