2-4-2 Dominant Players and Hidden Champions — Taiwan Photomask Supply Chain
Photomasks, key chip molds, form a supply chain cradling Taiwan's hidden champions. TSMC's localized fleet—Taiwan Mask (overflow), GUDEN (EUV Pod monopoly), High-Link (AMC contamination), iDEX (critical consumables)—is a strategy to build a localized, high-margin ecosystem, more than a tech contest.