United Microelectronics Corporation (UMC; Chinese: 聯華電子; pinyin: Liánhuá Diànzǐ) is a Taiwanese company 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).^[4]

Quick Facts Native name, Company type ...

United Microelectronics Corporation

Native name	聯華電子
Company type	Public
Traded as	TWSE: 2303 NYSE: UMC
Industry	Semiconductor Foundry
Founded	1980; 44 years ago (1980)
Founder	Robert Tsao
Headquarters	Hsinchu Science Park Hsinchu, Taiwan
Key people	Stan Hung, Chairman SC Chien, Co-president Jason Wang, Co-president
Revenue	NT$176.821 billion[1][2] (2020)
Operating income	NT$22.007 billion or NT$21.931 billion (2020)
Net income	NT$27.18 billion or NT$20.852 billion (2020)
Number of employees	19,577 (2020) [3]
Website	www.umc.com/en/home/Index

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UMC is best known for its semiconductor foundry business, manufacturing integrated circuits wafers for fabless semiconductor companies. In this role, UMC is ranked behind competitor TSMC. It has four 300 mm fabs, one in Taiwan, one in Singapore, one in China, and one in Japan.^[4]

UMC is listed on the Taiwan Stock Exchange as 2303. UMC has 12 manufacturing facilities worldwide, employing approximately 19,500 people.^{[citation needed]}

UMC is a significant supplier to the automotive industry.^[5]

This section is in list format but may read better as prose. (February 2023)

• On May 22, 1980, UMC was spun off from the Industrial Technology Research Institute and was formally established as the first private integrated circuit company in Taiwan.
• 1983: TMC starts a joint research project with US-based Vitelic.
• 1985
  • UMC was officially listed on the Taiwan Stock Exchange (code: 2303). It was the first listed semiconductor company in Taiwan. At that time, Morris Chang was its chairman.
  • UMC sets up a subsidiary, Unicorn Microelectronics Corporation (also abbreviated UMC), in Silicon Valley to improve access to technology, signing joint research agreements with Mosel (later Mosel Vitelic) and Quasel.
• 1995: UMC decided to transform from an IDM company with its own products to a professional pure-play foundry.
• 1996: Spun off its IC design units to establish MediaTek, Novatek, ITE Technology, Faraday Technology, AMIC Technology, and Davicom.
• 1999: Fab 12A 12-inch wafer fab in Tainan Science Park was officially established.
• 2000:
  • Listed on the New York Stock Exchange (code: UMC) as Taiwan's second semiconductor company to do so.^[6]
  • Produces the first chips using copper process technology and the first 0.13 micron ICs in the semiconductor industry.
• 2004: 12-inch wafer fab in Singapore enters mass production.
• 2008: Listed as a constituent stock on the Dow Jones Sustainability Index (DJSI) for the first time.^[7]
• 2010: 30th anniversary of the company.
• 2013: Fully acquires "Hejian Technology Wafer Fab" in Suzhou, China.
• 2015: USCXM 12-inch wafer fab located in Xiamen, Fujian Province, China was officially established.^[8]
• 2017: 28 nm mass production begins at USCXM in Xiamen, China.
• 2019: Fully acquired Japan-based Mie Fujitsu Semiconductor.^[9][10][11]
• 2020: Reached a plea agreement with the U.S. Department of Justice to resolve a 2018 trade secrets case.^[12]

• List of semiconductor fabrication plants
• List of companies of Taiwan
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