The two leading foundries unexpectedly dropped any patent infringement claims and struck an agreement that allows both parties to license each other's existing patents. Additionally, the agreement would also cover any other patents that would be filed by any side in the next 10 years.
https://www.notebookcheck.net/TSMC-and-GlobalFoundries-bury-the-hatchet-with-a-10-year-cross-license-agreement.440518.0.html
Really?! It works to the extent that it allows GF to develop a 7nm process largely from TSMC patents?!