UMC Group (USA)

UMC Group (USA) is a wholly-owned subsidiary of United Microelectronics Corporation (UMC), a prominent global semiconductor foundry. Headquartered in Hsinchu, Taiwan, UMC was founded in 1980 and is publicly traded on the Taiwan Stock Exchange (TWSE: 2303) and the New York Stock Exchange (NYSE: UMC). As of May 2026, UMC employs approximately 19,000-20,000 people worldwide, reported a trailing 12-month revenue of $7.8 billion as of March 31, 2026, and held a market capitalization of $42.9 billion as of May 14, 2026.

UMC operates as a pure-play semiconductor foundry, providing high-quality integrated circuit (IC) fabrication services to fabless semiconductor companies and integrated device manufacturers. Its comprehensive offerings include logic, mixed-signal, embedded high-voltage, embedded non-volatile memory, RFSOI, and BCD technologies. The company manufactures ICs for diverse applications across the electronics industry, including mobile and wireless communications, consumer electronics, computing, automotive, and Internet of Things (IoT) devices. UMC maintains a global manufacturing footprint with 12 fabrication facilities across Taiwan, Singapore, China, and Japan.

UMC Group (USA)'s sole tracked litigation appearance is as a plaintiff in United Microelectronics Corporation et al. v. Advanced Integrated Circuit Process LLC at the Patent Trial and Appeal Board (PTAB), indicating an active role in protecting its intellectual property. As an operating company, UMC is not a patent assertion entity but rather a developer and manufacturer of semiconductor technology.

The company has a history of engaging in intellectual property matters, including a 2020 plea agreement with the U.S. Department of Justice to resolve a 2018 trade secrets case involving Micron Technology, Inc. This past case was related to an older technology and resulted in UMC pleading guilty to one count of receiving and possessing a stolen trade secret and agreeing to pay a fine.