Xanadu moves quantum photonics onto 300mm production

Xanadu and GlobalFoundries announced a multi-year manufacturing partnership aimed at moving key photonic quantum components from lab-scale processes onto an industrial 300 mm semiconductor line in Malta, New York.

Initial work will focus on superconducting nanowire single-photon detectors and ultra-low-loss silicon nitride photonics. Xanadu uses those components to detect and route photons in its photonic quantum architecture, and says the manufacturing path is intended to support upcoming fault-tolerant demonstrators.

The agreement is primarily a scale-up milestone rather than a new quantum-computing performance result. Moving specialised optical components onto a high-volume commercial fab is important because a useful fault-tolerant machine would need repeatable fabrication, yield and packaging at a level that research-scale production cannot provide. The partnership therefore targets manufacturing repeatability as much as component performance.