ASE Technology (ASE Group / SPIL)
World's largest OSAT, scaling AI advanced packaging
ASE Technology (including subsidiary SPIL) is the world's largest outsourced assembly and test provider and a major supplier of advanced packaging capacity for AI and HPC. It offers 2.5D (VIPack, FOCoS) and fan-out solutions that absorb overflow demand as TSMC CoWoS capacity is exhausted, positioning it as a key second source for AI accelerator packaging in 2025-2026. It is expanding advanced-packaging capacity in Taiwan, Malaysia, and the US.
Rank
#1 OSAT globally
Advanced platforms
VIPack, FOCoS, fan-out
Role
Second-source AI packaging as CoWoS maxes out
How it fits the stack
ASE Technology (ASE Group / SPIL) with what it depends on (above) and what it feeds (below). The figure renders as a crawlable diagram and upgrades to an interactive 3D graph as it scrolls into view.
ASE Technology (ASE Group / SPIL) in the AI stack. ASE Technology (ASE Group / SPIL) with its immediate upstream dependencies (top) and downstream dependents (bottom) in the AI value chain. Hover a node in 3D, or read the full relationships below.
Graph data (text) — 4 entities, 3 relationships
- ASE Technology (ASE Group / SPIL) —uses→ High-Bandwidth Memory (HBM)
- ASE Technology (ASE Group / SPIL) —supplies→ Lead-frame & bonding-wire supply (Chang Wah)
- ASE Technology (ASE Group / SPIL) —partners with→ TSMC CoWoS (Chip-on-Wafer-on-Substrate)