{"event":{"id":"evt-hist-cn-immersion-duv-20260728","dedupe_key":"reported_lithography_industry_development:2026-07-28:reuters-reports-chinese-domestic-immersion-duv-lithography-machine-production","event_type":"reported_lithography_industry_development","title":"Reuters reports Chinese domestic immersion-DUV lithography machine production","summary":"In July 2026, Reuters reported that Shanghai Aishengna had reportedly begun producing domestic immersion deep-ultraviolet equipment, while testing and qualification remained outstanding. The report does not demonstrate comparable production performance with ASML or reliable high-volume wafer manufacturing.","occurred_at":"2026-07-28T00:00:00.000Z","published_at":"2026-07-28T00:00:00.000Z","observed_at":"2026-07-28T00:00:00.000Z","reconstructed_at":"2026-10-11T12:14:00.000Z","ingest_type":"historical_backfill","locations":null,"status":"reported","confidence":0.93,"metadata":{"reporting_origin":"Reuters investigative reporting","uncertainty":"Source-based start-of-production report; no verified installed fleet, throughput, yield, reliability, equivalent technical specifications or commercially proven mass-production parity with ASML.","reconstruction":"Retrospectively recorded; does not affect LIVE clock or CivilizationSnapshot."},"created_at":"2026-10-11T12:56:38.930Z","updated_at":"2026-10-11T12:56:38.930Z"},"artifacts":[{"id":"art-reuters-cn-immersion-duv-20260728","dedupe_key":"772a738b30db9d85213edd9232f48fb3ae5f7fbbf35811270b3246a497068cf1","canonical_url":"https://www.reuters.com/world/china/china-starts-production-home-grown-immersion-duv-chipmaking-tools-source-2026-07-28/","evidence_locator":"","artifact_type":"news_report","title":"China starts production of home-grown immersion DUV chipmaking tools, source says","summary":"In July 2026, Reuters reported that Shanghai Aishengna had reportedly begun producing domestic immersion deep-ultraviolet equipment, while testing and qualification remained outstanding. The report does not demonstrate comparable production performance with ASML or reliable high-volume wafer manufacturing.","creator_entities":["Reuters"],"released_at":"2026-07-28T00:00:00.000Z","content_hash":null,"metadata":{"evidence_locator":"Article body, reporter attribution, and source-based caveats","epistemic_scope":"Confirms the dated publication and documented reporting, not successful commercial wafer manufacture."},"created_at":"2026-10-11T12:56:38.929Z","updated_at":"2026-10-11T12:56:38.929Z","relation":"evidenced_by"}],"signals":[]}