Unimicron supplies high-end ABF substrates used by semiconductor and accelerator manufacturers in advanced packaging.
The largest Taiwanese IC-substrate and PCB maker, main ABF substrate supplier to four US hyperscalers' custom ASICs and to Nvidia and Google; the volume producer under the Ibiden-class high end.
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Unimicron supplies high-end ABF substrates used by semiconductor and accelerator manufacturers in advanced packaging. The largest Taiwanese IC-substrate and PCB maker, main ABF substrate supplier to four US hyperscalers' custom ASICs and to Nvidia and Google; the volume producer under the Ibiden-class high end.
Unimicron ranks 80 of 100 on the AI Infra 100 (November 2026 edition) with a score of 86 out of 100, in Advanced packaging (Fabrication, memory & packaging). Assessment by Frontier Tech Intelligence.
Disco (rank 14), Ibiden (rank 40), ASE Technology Holding (rank 42), Besi (rank 52), Ajinomoto Fine-Techno (rank 64), Nittobo (rank 86).
Unimicron is based in Taoyuan, Taoyuan, Taiwan.
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