NasdaqGS:TSEMSemiconductor
Tower Semiconductor (TSEM) Is Up 15.1% After GlobalFoundries Patent Suits Challenge Its Specialty Foundry Story
In March 2026, GlobalFoundries filed multiple U.S. lawsuits against Tower Semiconductor, alleging infringement of 11 manufacturing process patents and seeking to block imports of allegedly infringing chips as well as recover lost profits.
These actions introduce legal and operational uncertainty for Tower just as it pursues major silicon photonics growth and a restructured, fully owned 300mm fab presence in Japan.
We’ll now examine how the GlobalFoundries patent lawsuits could affect...