Catenaa, Friday, July 10, 2026- US semiconductor manufacturer Micron Technology has begun a $9.3 billion expansion of its memory chip manufacturing facility in Japan, reinforcing global efforts to increase production of advanced artificial intelligence components amid soaring demand for high-performance computing.
The expansion at Micron’s Hiroshima Prefecture plant will significantly increase production of next-generation high-bandwidth memory (HBM), a critical technology used in AI accelerators and advanced graphics processors powering modern artificial intelligence systems.
Commercial production from the expanded facility is expected to begin during the summer of 2028.
Japan’s Ministry of Economy, Trade and Industry has committed subsidies of up to $3.1 billion to support the investment, highlighting the country’s determination to rebuild its strategic semiconductor manufacturing capabilities.
The project reflects accelerating worldwide demand for advanced memory chips driven by artificial intelligence, cloud computing and next-generation data centers.
High-bandwidth memory has become one of the most sought-after semiconductor technologies because it enables AI processors to transfer massive amounts of data at extremely high speeds while improving power efficiency.
The technology is widely used in advanced AI systems, including those supporting machine learning, generative artificial intelligence and high-performance computing.
Micron said the Hiroshima facility has already produced its first HBM manufacturing wafer, demonstrating the site’s readiness to support future AI infrastructure.
The Japanese investment forms part of Micron’s broader worldwide manufacturing strategy.
The company is simultaneously constructing two advanced semiconductor fabrication plants in Boise, Idaho, while developing a $100 billion semiconductor manufacturing campus near Syracuse, New York.
Together, the projects are intended to strengthen Micron’s global DRAM production capacity while improving supply chain resilience.
The expansion comes as semiconductor manufacturers compete aggressively to meet growing orders from AI infrastructure providers.
Micron is not alone in expanding production.
South Korean rivals SK Hynix and Samsung Electronics are also investing heavily in advanced memory manufacturing as competition intensifies across the AI semiconductor market.
The race reflects expectations that demand for AI chips will remain strong over the coming decade as governments and technology companies invest billions of dollars in artificial intelligence infrastructure.
HBM has become one of the fastest-growing segments of the semiconductor industry because of its central role in powering advanced AI processors.
Japan has dramatically increased public investment in semiconductor manufacturing since 2021.
The government considers advanced chip production a strategic national priority tied to both economic competitiveness and national security.
Industry Minister Ryosei Akazawa described government support for Micron as an important component of Japan’s broader industrial policy and said similar incentives remain available for other international semiconductor companies establishing manufacturing operations in the country.
Last month, Prime Minister Sanae Takaichi unveiled a long-term strategy targeting approximately $630 billion in combined public and private investment across semiconductor manufacturing and artificial intelligence through 2041.
The Hiroshima expansion further strengthens Japan’s position within the global semiconductor supply chain while deepening technological cooperation between Japanese manufacturing expertise and American semiconductor innovation.
Industry analysts expect continued government support for advanced chip production as countries compete to secure critical technologies underpinning future AI development.
High-bandwidth memory is an advanced semiconductor technology that provides exceptionally fast data transfer between memory and processors, making it essential for artificial intelligence, high-performance computing and next-generation graphics applications. As global AI investment accelerates, demand for HBM has surged, prompting major manufacturers to expand production capacity. Japan has made semiconductor manufacturing a cornerstone of its industrial policy by offering substantial financial incentives to attract international chipmakers. Combined with parallel investments in the United States and other allied economies, these projects aim to strengthen supply chain resilience, reduce dependence on concentrated manufacturing hubs and secure long-term access to strategic semiconductor technologies.
