Rapidus Interposer Roadmap Shows HBM Package Size Pressure

Rapidus is flagging a packaging challenge that sits directly beside the HBM roadmap. DigiTimes reports that the company expects interposers for high-performance chips to grow to eight-reticle scale by around 2030 as chiplets and HBM expand package dimensions. For RamTrend, this matters because HBM demand does not scale only through memory stacks. It also pushes substrate, interposer, and advanced packaging capacity. Larger package sizes can raise complexity and cost, which may affect how quickly AI accelerators and memory-rich chiplet systems can be built. The item is not a near-term pricing update, but it is relevant to long-term HBM supply-chain constraints.