SIA says hidden upstream weaknesses threaten U.S. semiconductor supply chain

The Semiconductor Industry Association, or SIA, has published a new report arguing that semiconductors remain fundamental to both the U.S. economy and national security, while warning that the supply chain behind U.S. chip production contains far more fragility than headline supplier data suggests. The report maps key materials and equipment used in semiconductor manufacturing, then traces vulnerabilities beyond direct suppliers into deeper upstream networks that include raw materials, engineered materials and subsystems. SIA says the U.S. semiconductor ecosystem spends about $27 billion a year on equipment and materials. On paper, 95% of that supply comes from companies headquartered in the United States, Europe or Japan. But when the analysis shifts from corporate headquarters to actual production and assembly locations, dependence on those regions drops to 68%, while reliance on mainland China, Taiwan, South Korea, Southeast Asia and Israel rises to 32%. The report also points to rising risks tied to export controls on critical minerals and rare earths, especially where low- or medium-risk Tier 1 inputs are exposed to highly vulnerable upstream Tier-n materials. SIA calls for a mix of responses rather than a single domestic-manufacturing fix: targeted U.S. capacity expansion, strategic stockpiles where feasible, deeper coordination with allies, more investment in materials science and recycling, and coordinated action to reduce reliance on unreliable sources of rare earths and other critical minerals.