Republican lawmakers urge federal agency to block imports of infringing TSMC chips as patent ruling nears

Four Republican members of the U.S. Congress have urged the U.S. International Trade Commission (ITC) to block imports of chips made by TSMC that allegedly infringe U.S. patents. The investigation cen... Read original →

This congressional push to block TSMC chip imports under patent claims reveals deeper U.S. anxieties over AI supply chain fragility. Technically, restricting 7nm-and-below nodes would disrupt Apple, Qualcomm, and Broadcom’s AI accelerators and smartphones, forcing rushed shifts to Samsung or domestic foundries—neither ready to absorb volume at comparable yields. Despite TSMC’s $165B North American investment, its Taiwan, China fabs remain geopolitical liabilities, compelling customers to adopt multi-source manufacturing. Competitors like GlobalFoundries may quietly lure clients, while patent assertion entities (PAEs) like Longitude exploit legacy UMC IP for licensing revenue—a growing threat as PAEs bypass counter-suits. Over the next 12–24 months, expect tighter U.S. scrutiny linking patent validity to supply chain security, accelerating cross-licensing among fabless leaders and pushing TSMC to fast-track Arizona’s 3nm output to de-risk politically.