Imec and Diraq Demonstrate First Coherent Operation of Eight Silicon MOS Spin Qubits Fabricated in a 300mm CMOS-Compatible Foundry Process
AI-summarised brief · reviewed before publication
Imec and Diraq have demonstrated coherent operation and readout of an eight‑qubit silicon MOS spin‑qubit array fabricated on imec’s 300 mm CMOS‑compatible foundry platform. The linear array maintains qubit coherence and controllability comparable to earlier single‑ and two‑qubit results published in Nature, confirming that the industrial process can scale without increasing sensor count, wiring density, or thermal load. The devices were produced using a decade‑long, optimized semiconductor manufacturing flow, bridging laboratory prototypes and mass‑production techniques. The work, detailed in a Nature Communications paper, shows that silicon spin qubits can be integrated into larger, compact arrays while preserving the fidelity needed for quantum error correction, marking a step toward manufacturable, large‑scale quantum processors.
💡 Why It Matters
- · It proves that standard semiconductor fabs can reliably produce multi‑qubit quantum chips, unlocking a production pathway that matches the scale of today’s silicon industry.
