Quantum chip makers and semiconductor fabs clash over foundry performance metrics

At the GQIG Quantum Infra Summit EU 2026 in Leuven, Infineon's Richard Kuncic said quantum chip work supports none of the key performance indicators fab managers track, such as throughput and cost per wafer.

The report says quantum processes need materials such as niobium, tantalum and aluminum, which classical CMOS lines restrict to avoid contamination. It also argues that fabs' frozen process recipes and process design kits (PDKs) conflict with the experimental workflows of quantum startups.