TSMC reportedly teams with Ibiden, Innolux to push CoPoS, glass substrates - digitimes

TSMC is accelerating its advanced packaging roadmap for AI chips, expanding CoWoS capacity while publicly disclosing new progress in glass substrate technology. This strategic move signals that next-g... Read original →

TSMC’s collaboration with Japan’s Ibiden and Taiwan, China’s Innolux on glass substrates marks a strategic pivot from organic-based CoWoS toward thermally stable, low-loss interconnects essential for next-gen AI accelerators. This shift pressures upstream material suppliers to scale ultra-low-CTE glass while forcing EDA vendors to overhaul simulation models for new dielectric behaviors. Geopolitically, while the tripartite alliance sidesteps some U.S. export controls, reliance on American or Japanese lithography and metrology tools for glass processing still exposes the supply chain to ITAR/BIS scrutiny, inflating capex by over 15%. In response, Samsung may leverage its display arm to vertically integrate glass capabilities, while Intel could double down on Foveros Direct hybrid bonding to retain HPC relevance. Within 18 months, glass-based advanced packaging will migrate from data-center AI chips to edge inference, catalyzing a CoPoS ecosystem that marginalizes standalone OSAT players lacking foundry partnerships.