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I Understand

UMC (NYSE : UMC, TWSE : 2303) is a leading global semiconductor foundry. The company provides high quality IC production with a focus on both logic and specialty technologies to serve every major sector of the electronics industry. UMC's comprehensive technology and manufacturing solutions include logic/RF, display driver IC, embedded flash, RFSOI/BCD, and IATF-16949 automotive manufacturing certification for all wafer fabs.


UMC operates 12 fabs that are located throughout Asia with a maximum capacity of more than 750,000 8-inch equivalent wafers per month. The company employs approximately 19,000 people worldwide, with offices in Taiwan, China, United States, Europe, Japan, Korea and Singapore.

UMC Snapshot

  • 40

    years in the IC
    business

  • 7

    global sales offices

  • >19,000

    employees
    worldwide

  • 4

    300mm
    fabs

    7

    200mm
    fabs

    1

    150mm
    fab

  • ~$5

    Billion
    2019 revenue

40

years in the IC
business

7

global sales offices

>19,000

employees
worldwide

4

300mm
fabs

7

200mm
fabs

1

150mm
fabs

~$5

Billion
2019 revenue

Fab Information

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UMC Fab Locations

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A Long and Productive History

Founded in 1980 as Taiwan’s first semiconductor company from state-owned ITRI, UMC led the development of the commercial semiconductor industry in Taiwan.

  • 1980
    Spun off from state-owned ITRI as Taiwan’s first IC company
  • 1995
    Switched from IDM to pure-play foundry model
  • 1999
    Established Fab 12A, Taiwan’s first 300mm fab
  • 2000
    Became the first Taiwan semiconductor company to list on the NYSE
  • 2015
    Established 300mm fab in Xiamen, China (USCXM)
  • 2017
    USCXM first China fab to enter volume 28nm production
  • 2019
    Acquired MIFS 300mm fab in Japan

Leading Foundry Solutions

UMC is committed to Specialty Technologies that serve upcoming growth markets, particularly 5G, IoT and Auto ICs. We lead in many areas such as 80eHV TDDI & 40eHV/28eHV TDDI technology and shipments, and our specialty market share continues to grow, especially on 12-inch manufacturing.


Furthermore, as IP has become a critical resource for today’s SoCs, we have worked to provide fundamental as well as more specialized IP that are optimized for portability and cost, developed both internally and from third-party partners.


Our multiple fabs across Asia featuring world-class defect densities and cycle times ensure ample capacity and manufacturing quality. Come explore how UMC’s specialty processes can help power your next generation IC design.

Diversified Manufacturing

UMC is a foundry manufacturing leader with several advanced 300mm fabs in operation. Fab 12A in Tainan, Taiwan has been in volume production for customer products since 2002 and is currently manufacturing 14 and 28nm products. The multi-phase complex is actually three separate fabs, consisting of Phases 1&2, 3&4, and 5&6. Fab 12A’s total production capacity is currently over 87,000 wafers per month. UMC’s second 300mm fab, Fab 12i, is located in Singapore’s Pasir Ris Wafer Park. This second-generation 300mm facility is also in volume production, with capacity at 50,000 wafers per month. UMC’s 3rd 300mm fab, United Semi in Xiamen, China, began volume production in Q4 2016. The total design capacity of United Semi is 50,000 wafers per month when fully equipped. UMC also acquired USJC in Japan in October of 2019. This 300mm fab, based in Mie Prefecture, provides 33,000 wafers per month capacity for logic and specialty processes down to 40nm.


Combined with our seven 200mm fabs and one 150mm specialty fab, UMC provides stable and diversified manufacturing with leading production efficiency.

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