FormFactor's production-ready wafer-level CPO probe gives it a test opportunity at a major foundry, but that business depends on one customer. CEO Mike Slessor says the CPO piece flows through a foundry worth 10% of sales; he did not name it, though an analyst named TSMC. Triton tests photonic wafers before stacking; post-stack test remains difficult. FormFactor expects CPO test revenue to significantly exceed $20m this year and estimates a $400m market by 2030. x.comÂ


