Unimicron / ABF substrate makers
ABF build-up substrate manufacturers
Unimicron, Ibiden and Shinko convert Ajinomoto Build-up Film into the high-layer-count package substrates every AI accelerator sits on. Substrate area per GPU has ballooned with chiplet designs, making ABF substrate fabrication a periodic bottleneck alongside CoWoS.
Peers
Unimicron, Ibiden, Shinko, AT&S
Input
Ajinomoto Build-up Film
How it fits the stack
Unimicron / ABF substrate makers 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.
Unimicron / ABF substrate makers in the AI stack. Unimicron / ABF substrate makers 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) — 5 entities, 7 relationships
- Unimicron / ABF substrate makers —sources→ Ajinomoto Build-up Film (ABF)
- Unimicron / ABF substrate makers —supplies→ Ajinomoto Build-up Film (ABF)
- Advanced Packaging Substrates (ABF) —manufactures→ Unimicron / ABF substrate makers
- Nvidia Data-Center GPU (Blackwell/Rubin) —supplies→ Unimicron / ABF substrate makers
- Nvidia Data-Center GPU (Blackwell/Rubin) —depends on→ Unimicron / ABF substrate makers
- TSMC CoWoS (Chip-on-Wafer-on-Substrate) —supplies→ Unimicron / ABF substrate makers
- TSMC CoWoS (Chip-on-Wafer-on-Substrate) —depends on→ Unimicron / ABF substrate makers
Depends on ↑ · 2
Feeds ↓ · 5