TSMC unveils two COUPE bandwidth paths for AI I/O

TSMC's silicon photonics roadmap expansion comes as AI compute demands continue to grow faster than the ability to move data between chips. This I/O wall threatens to bottleneck overall system performance, so TSMC is addressing it with two bandwidth-scaling paths for COUPE. These paths likely involve different optical interconnect approaches, which, combined with deeper heterogeneous integration, could enable more efficient AI accelerators. The focus on heterogeneous integration suggests that future TSMC packaging will more tightly couple photonics with logic, potentially reducing energy and latency in AI clusters. This development is part of TSMC's broader strategy to maintain leadership in advanced packaging and system-level performance.