{"meta":{"version":"2026-09-09.research-1","preparedAt":"2026-09-09","numericalClasses":["reported","derived","model-estimate","assumption-scenario","unavailable"],"publicBoundary":"Public references, independently calculated estimates and explicit scenario assumptions. Commercial price-board histories and private operational methods are not redistributed.","refresh":"This release uses dated, reviewed snapshots. Models recalculate from the bundled validated inputs; this is not a live ingestion feed.","modelPromotion":"A candidate can be described as improved only after chronological out-of-sample validation against a declared baseline, with errors, horizon, sample size and interval coverage published. No superiority over commercial providers is claimed.","researchAgent":{"name":"VLSI ASTRIA","title":"Semiconductor Intelligence Agent","version":"2026.09","attribution":"Research & model estimates by VLSI ASTRIA","scope":"AI-assisted research with reproducible statistical models and explicit scenario assumptions. Publisher facts retain their original source. Experimental forecasts are not independently validated or guaranteed."},"evaluatedAt":"2026-09-09T16:25:11.766Z","productCount":150,"pricedReferenceCount":49,"forecastSeriesCount":4,"densityScenarioCount":8,"relationshipCount":15,"mixBucketCount":29,"foundryCount":8},"view":"wafer-capacity","count":1,"records":[{"companyId":"umc","company":"UMC","period":"FY2025 fab table","source":{"issuer":"United Microelectronics Corporation","document":"Form 20-F for fiscal year ended December 31, 2025","publishedDate":"2026-04-30","url":"https://www.sec.gov/Archives/edgar/data/1033767/000119312526193757/d91630d20f.htm","section":"Item 4 / manufacturing fabs table","pagination":"HTML table rows; source text lines 881-890","tableDefinition":"Estimated full capacity, wafers per month, measured in stated wafer size. Capacity depends on equipment ratings adjusted for trial output, downtime, maintenance, and expected product mix."},"scope":"All 12 production fabs listed in the FY2025 Form 20-F table, including Wavetek 150mm","inputRows":[{"fab":"Wavetek","diameterMm":150,"estimatedFullCapacityWafersPerMonth":26564},{"fab":"Fab 8A","diameterMm":200,"estimatedFullCapacityWafersPerMonth":71700},{"fab":"Fab 8C","diameterMm":200,"estimatedFullCapacityWafersPerMonth":41800},{"fab":"Fab 8D","diameterMm":200,"estimatedFullCapacityWafersPerMonth":39450},{"fab":"Fab 8E","diameterMm":200,"estimatedFullCapacityWafersPerMonth":43700},{"fab":"Fab 8F","diameterMm":200,"estimatedFullCapacityWafersPerMonth":48800},{"fab":"Fab 8S","diameterMm":200,"estimatedFullCapacityWafersPerMonth":39000},{"fab":"Fab 8N","diameterMm":200,"estimatedFullCapacityWafersPerMonth":83300},{"fab":"Fab 12A","diameterMm":300,"estimatedFullCapacityWafersPerMonth":136279},{"fab":"Fab 12i","diameterMm":300,"estimatedFullCapacityWafersPerMonth":57207},{"fab":"Fab 12X","diameterMm":300,"estimatedFullCapacityWafersPerMonth":31500},{"fab":"Fab 12M","diameterMm":300,"estimatedFullCapacityWafersPerMonth":39767}],"result":{"state":"available","reason":null,"countBasis":"capacity_wafer_count","totalCount":659067,"shares":[{"diameterMm":150,"count":26564,"waferCountSharePercent":4.030546211538432,"areaEquivalentSharePercent":1.5272338692326601,"singleWaferAreaMm2":17671.458676442588},{"diameterMm":200,"count":367750,"waferCountSharePercent":55.79857586557968,"areaEquivalentSharePercent":37.587395165407536,"singleWaferAreaMm2":31415.926535897932},{"diameterMm":300,"count":264753,"waferCountSharePercent":40.17087792288189,"areaEquivalentSharePercent":60.88537096535981,"singleWaferAreaMm2":70685.83470577035}]},"caveat":"This is estimated full capacity, not actual wafer starts, output, shipments, utilization, revenue, or customer allocation. Area equivalence measures wafer surface area only. It does not normalize process complexity, layer count, yield, die size, ASP, or value. The filing identifies all rows as production fabs, but all calculated claims retain the table's 2025 fab-capacity scope and cannot be generalized to market capacity.","evidenceClass":"derived"}]}