Micron Technology has increased its planned US investment to more than $250 billion through 2035, marking a major boost for American semiconductor manufacturing and the broader artificial intelligence supply chain.
The Idaho-based memory-chip maker said the expanded commitment will support projects in New York, Idaho and Virginia. Reuters reported that the plan is expected to create more than 90,000 jobs and includes a separate $3 billion push to strengthen the US semiconductor supply chain.
A key part of the supply-chain effort is Micron’s $500 million support for GlobalWafers’ silicon wafer plant in Sherman, Texas. Micron and GlobalWafers also agreed to a 10-year supply deal, giving Micron more secure access to advanced wafers used in DRAM and high-bandwidth memory chips.
The announcement landed positively with investors. Micron shares rose about 7% to 8% after the news, while the broader semiconductor sector also gained. Reuters reported that the Philadelphia Semiconductor Index climbed 4.6%, helped by Micron’s rally and renewed confidence in AI-related chip demand.
The business significance is clear. AI systems need large amounts of memory to run data centres, cloud services and advanced computing workloads. Micron’s expansion suggests the company sees long-term demand as strong enough to justify one of the largest US manufacturing commitments in the chip industry.
For the US economy, the plan is also positive because it links private investment, skilled manufacturing jobs and domestic supply-chain security. It doesn’t remove all risks. Large semiconductor projects can face delays, cost overruns and demand swings. Still, based on the confirmed investment figures and market reaction, this is a genuinely positive US business story.
