Micron to begin work on $100 billion New York 'megafab' imminently — landmark site to produce 40% of company's overall DRAM output in the U.S. by the 2040s
After numerous delays, Micron is about to start building its $100 billion site in New York to produce 40% of its DRAM output in the U.S. in the 2040s.
(Image credit: Credit: Micron Technology)
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Micron this week announced that it would formally break ground on its fab site in Onondaga County, New York, on January 16. When fully built, the new site will house four fab modules and will cost around $100 billion in total. All four fab phases are scheduled to be completed by 2041, according to the company. The site will be an instrumental part of Micron's plan to build 40% of its DRAM output in the U.S. by the 2040s, up from virtually 0% today.
Five years of reviews and approvals
Micron's fab complex near Clay, New York, will be the largest semiconductor production facility in the state, as well as one of the largest fab complexes in the U.S., which will also outpace the company's site in Idaho when fully operational. In addition, $100 billion represents the largest private investment in the state ever, and one of the most expensive semiconductor manufacturing operations in America.
The groundbreaking ceremony to be held next Friday follows rigorous environmental review and necessary permit approvals, which has taken Micron around five years, something that delayed the whole project by around half a decade. Surprisingly, the groundbreaking ceremony precedes ground preparation, which is a rather unique situation. Normally, groundbreaking follows ground preparation, not preceding it. Yet, ground preparation will start more or less in-line with the schedule that the company outlined in 2025.
(Image credit: Micron)
Micron's Environmental Impact Statement (EIS) filing, published in November 2025, indicates that Fab 1 site preparation was set to start in late 2025, but was obviously delayed by several weeks. The construction of the first facility is now set to begin in late 2026, and will run through Q2 2028. Given that equipping a fab typically takes nine to 24 months (depending on how you count), Micron expects the fab to start operations as early as Q1 2029. However, it will still take some time before the fab is fully equipped and ramped, so expect tangible DRAM output from Micron's New York Fab 1 by 2030, around five years later than originally planned.
(Image credit: Micron)
The same documents schedule Fab 2 to break ground in the second half of 2028, Fab 3 in the second half of 2033, and Fab 4 in the first half of 2039. As a result, Micron's fab site near Clay, New York, will reach its full build-out and volume production by 2045, again, roughly five years behind the original timeline.
