United Microelectronics Corporation

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United Microelectronics Corporation
Public (TWSE: 2303)
IndustrySemiconductor Foundry
Founded1980; 39 years ago (1980)
HeadquartersHsinchu Science Park
Hsinchu, Taiwan
Key people
Stan Hung, Chairman
SC Chien, Co-president
Jason Wang, Co-president
RevenueUS$5 billion (2018)
Number of employees
The Singapore factory and offices of the United Microelectronics Corporation.

United Microelectronics Corporation (UMC; Chinese: 聯華電子; pinyin: Liánhuá Diànzǐ) is a Taiwanese company which is based in Hsinchu, Taiwan. It was founded as Taiwan's first semiconductor company in 1980 as a spin-off of the government-sponsored Industrial Technology Research Institute (ITRI).[1]

UMC is best known for its semiconductor foundry business, manufacturing integrated circuits wafers for fabless semiconductor companies. In this role, UMC is ranked behind competitors TSMC and GlobalFoundries.[2] It has three 300 mm fabs, one in Taiwan, one in Singapore, and one in China.[1]

UMC is listed on the Taiwan Stock Exchange as 2303. UMC has 11 manufacturing facilities worldwide, employing 18,500 people.


In the 1980s, UMC produced a popular clone of the Motorola 6845 CRT controller named the UM6845E.

In 1990s, UMC briefly marketed the U5 series microprocessors, an enhanced version of Intel 486, as well as chipset controllers for Socket 3 and Socket 5 microprocessors.

UMC was the first foundry to produce chips on 300 mm wafers, ship wafers using copper materials, to sell 65 nm ICs to customers, and to produce chips using 28 nm process technology.[1] It was the first Taiwanese company to offer foundry services and the first semiconductor company to be listed on the Taiwan Stock Exchange in 1985. In 2000, UMC's Fab 12A became the first 300mm fab to enter production in Taiwan. In 2004, UMC's Fab 12i became the first 300mm fab in Singapore to enter production.

The United States Department of Justice indicted UMC over charges of economic espionage on September 27, 2018 and unsealed on November 1, 2018.[3]

Fab list[edit]

Fab Node Location Wafer diameter Wafers per month
Fab 6A 450 nm Hsinchu, Taiwan 150 mm 50,000
Fab 8AB 250 nm Hsinchu, Taiwan 200 mm 70,000
Fab 8C 350–110 nm Hsinchu, Taiwan 200 mm 29,000
Fab 8D 90 nm Hsinchu, Taiwan 200 mm 32,000
Fab 8E 180 nm Hsinchu, Taiwan 200 mm 35,000
Fab 8F 150 nm Hsinchu, Taiwan 200 mm 32,000
Fab 8S 350–250 nm Hsinchu, Taiwan 200 mm 25,000
Fab 8N 350–110 nm Suzhou, China 200 mm 50,000
Fab 12A 14 & 28 nm Tainan, Taiwan 300 mm 75,000
Fab 12i 130–40 nm Singapore 300 mm 50,000
Fab 12X 55–28 nm Xiamen, China 300 mm 50,000

See also[edit]


  1. ^ a b c "UMC Overview". UMC. Archived from the original on 2005-03-19. Retrieved 2010-06-29.
  2. ^ "Pure-Play Semiconductor Foundry Market Set for 12 Percent Growth in 2012". iSuppli. 2012-04-11. Retrieved 2012-06-02.
  3. ^ https://www.justice.gov/opa/pr/prc-state-owned-company-taiwan-company-and-three-individuals-charged-economic-espionage

External links[edit]