Amkor posted record revenue, driven by AI computing and advanced packaging rather than traditional smartphones. CPO joined its technology platform for the first time, and long-term deals with TSMC and NVIDIA tie it to the core of the AI supply chain.

Why did Marvell pay up for Celestial AI? The answer is the SiPh interposer, which turns the PIC into an active interposer between GPU and HBM: the endgame architecture for scale-up CPO. Lightmatter runs an independent track, and neither uses TSMC. Part 4 of the series unpacks this underrated long-term axis.