Founded in 1912, Ibiden is a Japanese materials maker best known for ABF substrates, the packaging layer used in high-end CPUs and GPUs. Alongside South Korea's Simmtech and Taiwan's Unimicron, it's one of the few suppliers capable of producing the largest, most complex substrates AI chips require, giving it unusual pricing power when demand outstrips capacity.
CEO Koji Kawashima · Founded 1912 · HQ Ogaki, Japan · Exchange TSE · Website ibiden.co.jp