AI surge drives Taiwan push for second-source PCB materials as market booms

The AI-driven demand for ultra-low-loss, high-layer-count PCBs is forcing Taiwan’s supply chain to urgently diversify beyond single-source dependencies. Technically, this accelerates domestic substitution of ABF substrates and high-frequency CCLs, compelling upstream copper foil and resin suppliers to upgrade purity and dielectric control. Compliance-wise, persistent U.S. export controls and cross-strait geopolitical volatility have turned dual-sourcing from a cost consideration into an operational imperative—adding 15–20% in qualification and switching expenses. Japanese and Korean material giants like Panasonic and Doosan will likely deepen integration with NVIDIA and AMD ecosystems, while Chinese rivals, despite aggressive capacity expansion, remain bottlenecked by U.S.-Japan IP barriers in advanced resin formulations. Over the next 18 months, the industry will enter a 'materials-defined compute' era: leadership hinges on who achieves high yield in low Dk/Df materials at scale. Without a closed-loop domestic capability by 2027, Taiwan risks marginalization in next-gen AI infrastructure.