Summary
A new Nature Reviews article from Dzurak’s team offers a clear, definitive map of how silicon spin qubits line up with established CMOS manufacturing and where they do not. It lays out which process steps and materials can be reused from standard fabs and where custom approaches, cryogenic operation, and device physics create friction. The takeaway is measured optimism: CMOS compatibility is a strategic asset for scale, yet the path to million-qubit systems is more complex than the headlines imply.
For security leaders, the message is to expect progress tied to manufacturability and systems engineering, not just raw qubit counts. Meaningful milestones to watch include high-uniformity results on 300 mm wafers, integrated cryo-CMOS control close to the qubits, dense interconnect solutions, and demonstrations of stable logical qubits with error correction. The trajectory is encouraging for eventual large-scale quantum, but the prudent course is to keep PQC migration and crypto agility planning on track today while monitoring these concrete hardware maturity signals.
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See the original article at: https://postquantum.com/quantum-research/silicon-spin-cmos-compatibility/