Defendant

TSMC

2 cases as defendant.

Company profile

Taiwan Semiconductor Manufacturing Company Limited, commonly known as TSMC, is a Taiwanese multinational semiconductor contract manufacturing and design company headquartered in Hsinchu Science Park, Hsinchu, Taiwan. Founded in 1987 by Morris Chang, TSMC pioneered the "pure-play" foundry business model, focusing exclusively on manufacturing semiconductor chips designed by other companies rather than designing its own branded products. The company is publicly traded on the Taiwan Stock Exchange (TWSE: 2330) and its American Depositary Shares (ADSs) are listed on the New York Stock Exchange (NYSE: TSM). As of December 31, 2025, TSMC employed 90,557 people. For the first quarter of 2026, TSMC reported net revenue of NT$1,134,103,440 thousand, demonstrating substantial profitability. With a market capitalization over $2 trillion in May 2026, it is one of the world's largest non-U.S. companies by market capitalization and holds approximately 70% of the global semiconductor foundry market share.

TSMC's primary operations involve the manufacture of integrated circuits, offering mask services, integrated circuit packaging, and multi-wafer foundry services. The company provides advanced and "More-than-Moore" wafer production processes, serving a diverse customer base that includes major fabless semiconductor companies like Apple, Nvidia, AMD, Broadcom, and Qualcomm. Its technology portfolio encompasses advanced process nodes ranging from 2 microns to 3 nanometers, and specialized technologies such as MEMS, CMOS Image Sensors, Embedded Non-Volatile Memory (NVM), RF, Analog, High Voltage, and BCD-Power processes. These technologies are applied across various end markets including high-performance computing, smartphones, the Internet of Things (IoT), automotive, and digital consumer electronics.

In patent litigation, TSMC operates as a defendant, defending against patent infringement claims. The company has zero tracked cases as a plaintiff and two as a defendant. These cases are concentrated in plaintiff-friendly venues such as the Eastern District of Texas and the U.S. International Trade Commission (ITC).

The company's tracked litigation includes two cases where it is listed as a defendant: "Marlin Semiconductor Limited et al. v. Lenovo et al." in the Eastern District of Texas, and "Marlin Semiconductor et al. v. TSMC et al." before the U.S. International Trade Commission (ITC). In both instances, Marlin Semiconductor Limited is the asserting entity.

Marlin Semiconductor et al. v. TSMC et al.

Ongoing
Docket:
337-TA-1443
Patents:8993384

Marlin Semiconductor and Longitude Licensing filed a complaint with the ITC against multiple respondents, including TSMC and Apple, in investigation 337-TA-1443, asserting patents acquired from UMC, including US8993384, regarding semiconductor devices and manufacturing.