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    "story_id": "mp-2026-07-13-027",
    "source_story_id": "tmp-story-imec-diraq-eight-spin-qubits",
    "edition_id": "mp-2026-07-13-morning-0004",
    "edition_url": "https://themachinepress.com/edition/2026-07-13",
    "position": 16,
    "story_type": "dispatch",
    "section": "chips-infrastructure",
    "editorial_classification": "editorial",
    "headline": "Eight Qubits Leave the Two-Qubit Foundry",
    "slug": "eight-qubits-leave-the-two-qubit-foundry",
    "dek": "Imec and Diraq coherently operated an eight-qubit silicon array made on a 300-millimeter CMOS-compatible foundry process, extending industrial fabrication beyond isolated pairs.",
    "summary": "Imec and Diraq coherently operated an eight-qubit silicon array made on a 300-millimeter CMOS-compatible foundry process, extending industrial fabrication beyond isolated pairs.",
    "body_text": "Imec and Diraq tuned and individually controlled eight silicon MOS spin qubits fabricated with a 300-millimeter CMOS-compatible process. The peer-reviewed Nature Communications paper reports Ramsey dephasing times up to 41 microseconds, Hahn-echo coherence up to 1.31 milliseconds, cascaded readout of the central four qubits, and a two-qubit gate between one neighboring pair. This is a manufacturing-and-control milestone, not a useful quantum computer: the authors say entangling gates across the paired unit cells remain to be shown, while fault-tolerant designs will require higher-dimensional connectivity and more reliable exchange control.",
    "why_it_matters": "Imec and Diraq coherently operated an eight-qubit silicon array made on a 300-millimeter CMOS-compatible foundry process, extending industrial fabrication beyond isolated pairs.",
    "limitations": [
      "This is a manufacturing-and-control milestone, not a useful quantum computer: the authors say entangling gates across the paired unit cells remain to be shown, while fault-tolerant designs will require higher-dimensional connectivity and more reliable exchange control."
    ],
    "importance": 8,
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    "first_published_at": "2026-07-13T09:00:00.000-04:00",
    "modified_at": "2026-07-13T16:41:12.927-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
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        "claim_id": "claim-mp-2026-07-13-027-001",
        "text": "Imec and Diraq coherently operated an eight-qubit silicon array made on a 300-millimeter CMOS-compatible foundry process, extending industrial fabrication beyond isolated pairs.",
        "source_ids": [
          "source-2026-07-13-021"
        ],
        "qualification": "This is a manufacturing-and-control milestone, not a useful quantum computer: the authors say entangling gates across the paired unit cells remain to be shown, while fault-tolerant designs will require higher-dimensional connectivity and more reliable exchange control."
      }
    ],
    "source_ids": [
      "source-2026-07-13-021"
    ],
    "tags": [
      "quantum computing",
      "silicon spin qubits",
      "CMOS",
      "semiconductors",
      "foundry"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-07-13-021",
      "title": "Imec: Eight silicon MOS spin qubits on a 300mm foundry process",
      "publisher": "Imec",
      "url": "https://www.imec-int.com/en/press/imec-and-diraq-demonstrate-first-coherent-operation-eight-silicon-mos-spin-qubits-fabricated",
      "canonical_url": "https://www.imec-int.com/en/press/imec-and-diraq-demonstrate-first-coherent-operation-eight-silicon-mos-spin-qubits-fabricated",
      "source_type": "secondary_reporting",
      "is_primary_source": false,
      "published_at": "2026-07-12T20:00:00.000-04:00",
      "accessed_at": "2026-07-13T16:15:36.259-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "Eight Qubits Leave the Two-Qubit Foundry",
    "publisher": "The Machine Press",
    "published_at": "2026-07-13T09:00:00.000-04:00",
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