Micron Technology has recently announced a $500 million strategic investment in GlobalWafers and signed a decade-long silicon wafer supply agreement. This move is to support the construction of a 300-millimeter semiconductor wafer manufacturing facility in Sherman, Texas. As part of Micron's planned investment of up to $3 billion to strengthen the U.S. semiconductor supply chain, this action aims to secure a future supply of critical raw materials for DRAM, NAND, and high-bandwidth memory.

Market analysis suggests this action by Micron sends a significant signal that silicon wafer supply could become the next critical bottleneck in AI computing hardware. As AI-driven investments in memory and logic chips continue to expand, demand for semiconductor-grade silicon wafers is expected to surge sharply between 2028 and 2030. Analysts point out that Micron management's prediction of a potential silicon wafer shortage is reasonable, reflecting that memory chip customers anticipate sustained strong AI-related demand, which could extend the current memory upcycle.

The current global supply of advanced 300-millimeter semiconductor wafers is highly concentrated, dominated by a handful of manufacturers such as Japan's Shin-Etsu Chemical, SUMCO, and Taiwan's GlobalWafers, with virtually no alternative sources. Silicon wafers serve as the physical substrate for all transistors and memory cells, and their quality directly determines the maximum yield for chip fabrication facilities. Through this move, Micron is extending its supply chain security to the most fundamental raw material stage of chip manufacturing, aiming to preemptively avoid a potential future scramble for wafers. The company has also raised its total U.S. domestic spending target for 2035 from a previous $200 billion to over $250 billion to support AI memory demand and the production of 40% of its DRAM products in the United States.