Qualcomm sues Arm over withheld chip test tools and alleged confidential leaks, seeks to avoid billions in royalties

Qualcomm alleges Arm withheld contractually owed chip testing tools and leaked threats to terminate its 2024 license agreement to media, harming Qualcomm's chip deal with Meta. Qualcomm seeks to halt royalty payments potentially worth billions for up to five years, while Arm counters that Meta shifted focus to AI glasses, reducing VR investment and causing no loss to Qualcomm.

Why it matters. The outcome could reshape licensing economics for chip designers relying on Arm architecture, affecting Qualcomm's cost structure and competitive positioning in CPU markets from smartphones to data centers.