Exclusive: China SiC capacity tightens, spilling orders over to Taiwanese foundries - digitimes

China's silicon carbide (SiC) market is experiencing a notable capacity crunch, with demand outpacing domestic production and forcing a spillover of orders to Taiwanese foundries. According to an excl... Read original →

This is not a cyclical shortage—it is the structural inflection where SiC shifts from material-driven to system-demand-driven. Technical cascade: 800V fast-charging and AI server 800V DC architectures are converging simultaneously. The bottleneck is not lithography; it is CVD crystal growth and epitaxy uniformity, both requiring 18-to-24-month yield ramps. Order spillover to foundries in Taiwan, China signals SiC is replicating silicon's design-fab split, breaking IDM lock-in. Compliance and risk: Export controls on CVD and MOCVD equipment cap domestic expansion speed. Concentrating capacity in a single geography converts geopolitical friction directly into breach-of-contract costs. Multi-sourcing is no longer a strategy option—it is a compliance mandate. Market dynamics: Wolfspeed's financial distress and STMicro's capacity pullback open a window for Chinese substrate and foundry players. But the 2023-24 150mm substrate price war already eroded margins; current demand recovery is largely digesting overcapacity, not creating new premium. Foundry incremental revenue will lean on yield premium, not volume-price synergy. 12-to-24-month outlook: 200mm transition cuts unit cost 15-to-20 percent; 800V data-center architecture becomes Tier-1 standard by 2026, forming a structural demand floor; China adds two-to-three dedicated SiC lines, but equipment lead times delay actual output. Pricing power ultimately shifts from who owns substrate to who owns integrated yield.