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Imec's demonstration of high-fidelity SiMOS qubits using EUV lithography marks a pivotal shift toward scalable quantum manufacturing by leveraging existing semiconductor infrastructure rather than exotic materials. By achieving near-perfect gate fidelities and uniformity across full wafers, this approach directly addresses the critical bottleneck of reproducibility required for mass-producing practical quantum processors. This work effectively bridges high-volume chipmaking with quantum dot spin qubit technology, validating EUV as a viable path forward for industrial-scale quantum computing.

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Imec Achieves SiMOS Qubits With EUV-Defined Nanowires

Quantum ZeitgeistAugust 4, 20263 min read

SiMOS quantum-dot spin qubits were enabled by extreme-ultraviolet lithography, a process developed by researchers at Imec in Leuven, Belgium, and collaborators at Diraq in Sydney, New South Wales, Australia, and multiple universities. This research demonstrates the fabrication of qubits using SiMOS technology and EUV-defined nanowires.

Researchers from Imec in Leuven, Belgium, and Diraq in Sydney, New South Wales, Australia, have successfully created silicon metal-oxide-semiconductor (SiMOS) qubits using extreme-ultraviolet (EUV) lithography, a technique originally developed for high-volume semiconductor manufacturing. The work demonstrates high-fidelity SiMOS spin qubits fabricated in a semiconductor pilot line, leveraging existing silicon manufacturing infrastructure rather than relying on radically different materials. Characterization…

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