Why TSMC’s CoWoS Role Keeps Taiwan Semiconductor (TSM) Central to the HBM-Driven AI Chip Boom - Yahoo Finance

Taiwan Semiconductor Manufacturing Company (TSMC) remains a central player in the AI chip boom driven by high-bandwidth memory (HBM), primarily due to its CoWoS (Chip-on-Wafer-on-Substrate) advanced p... Read original →

TSMC’s CoWoS technology has become the linchpin of the AI chip supply chain, with its silicon interposer-based integration of logic chiplets and HBM creating a near-insurmountable barrier. Upstream HBM suppliers like SK Hynix risk marginalization if they can’t align with TSMC’s 3nm/EUV process cadence, while downstream players like NVIDIA face forced dependency on constrained packaging capacity. U.S. efforts to reshore advanced packaging lack mature interposer ecosystems and yield control, leaving Taiwan, China as the de facto hub for the next 18 months. Samsung and Intel may push alternative chiplet standards to bypass TSMC, but their inability to co-optimize HBM stacking with logic dies limits competitiveness. CoWoS capacity will effectively cap AI cluster scaling, granting TSMC not just pricing power but architectural dominance in heterogeneous integration.