China's Tungsten Regulations Disrupt Specialty Gas 'WF6' Supply, Introducing Uncertainty in HBM and AI Chip Production

AI semiconductor production expansion is disrupting the supply chain for electronic specialty gases. China's tungsten export controls have triggered delays in Japan's WF6 supply, creating new risks for HBM, DRAM, and advanced logic chip manufacturing. The bottleneck stems from critical raw materials rather than foundry capacity or post-processing, according to analyses. CICC warns that AI infrastructure investment and tungsten restrictions are simultaneously pressuring specialty gas supplies, with advanced processors for large language models (LLMs) most vulnerable. AI adoption is increasing both semiconductor production volumes and per-unit gas consumption, with specialty gases accounting for approximately 13% of wafer manufacturing materials after silicon wafers. As process miniaturization progresses, gas usage rises dramatically—from 20 etching steps for 65nm processes to 140 steps for 7nm processes used in AI accelerators. HBM production expansion further drives demand, as WF6 and other specialty gases are essential for forming silicon through electrodes (TSVs). Rising 3D NAND stack layers in AI non-volatile storage also increase gas requirements. Market indicators show consistent growth, with TrendForce forecasting 218.8 billion USD in global foundry revenue in 2026, and CICC predicting 61% higher capital expenditures for top 8 cloud service providers and 28% growth in AI server shipments.