• Entity registrant name: UNITED MICROELECTRONICS CORP (CIK: 0001033767)
  • SEC filing page: http://www.sec.gov/Archives/edgar/data/1033767/000119312518132616/0001193125-18-132616-index.htm
  • XBRL Instance: http://www.sec.gov/Archives/edgar/data/1033767/000119312518132616/umc-20171231.xml
  • XBRL Cloud Viewer: Click to open XBRL Cloud Viewer
  • XBRL Cloud Rendering (requires license): Click to open XBRL Cloud Component Rendering
  • EDGAR Dashboard: https://edgardashboard.xbrlcloud.com/edgar-dashboard/?cik=0001033767
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    Component: (Network and Table)
    Network
    1001 - Document - Document and Entity Information
    (http://www.umc.com/taxonomy/role/DocumentandEntityInformation)
    Table (Implied)
    Slicers (applies to each fact value in each table cell)
    Reporting Entity [Axis] 0001033767 (http://www.sec.gov/CIK)
    Document - Document and Entity Information [Abstract] Period [Axis]
    2017-01-01 - 2017-12-31
    Document - Document and Entity Information [Abstract]
     
    Document Type
    20-F  
    Amendment Flag
    false  
    Document Period End Date
    2017-12-31  
    Document Fiscal Year Focus
    2017  
    Document Fiscal Period Focus
    FY  
    Trading Symbol
    UMC  
    Entity Registrant Name
    UNITED MICROELECTRONICS CORP  
    Entity Central Index Key
    0001033767  
    Current Fiscal Year End Date
    --12-31  
    Entity Well-known Seasoned Issuer
    Yes  
    Entity Current Reporting Status
    Yes  
    Entity Filer Category
    Large Accelerated Filer  
    Entity Common Stock, Shares Outstanding
    12,624,318,715