Photronics → United Microelectronics (UMC)
As of 2026-09-05, Photronics is a tracked supplier of United Microelectronics (UMC). Photronics is a leader in Materials (headquartered in United States); United Microelectronics (UMC) is a major in Foundry (headquartered in Taiwan). Photronics has 8 tracked customers; United Microelectronics (UMC) has 24 tracked suppliers.
Data as of 2026-09-05 · relationship type: tracked supplier → customer · both names resolve in companies.json · no dollar amount is shown unless it already sits on a company record, and none is invented here
Why this edge matters
Photronics (leader in Materials) is a tracked supplier of United Microelectronics (UMC) (major in Foundry). Largest merchant photomask manufacturer. Taiwan's second foundry, strong in mature and specialty nodes. The edge is one of 24 tracked suppliers of United Microelectronics (UMC) and one of 8 tracked customers of Photronics.
Source: derived from both company records and the counted edges.
Concentration / risk note
Photronics is positioned as a leader in Materials, so this edge is harder to replace than a challenger or niche supplier.
Basis: supplier position. Omitted on edges where the graph does not back a concentration claim.
The two companies
Photronics (supplier)
Largest merchant photomask manufacturer.
United Microelectronics (UMC) (customer)
Taiwan's second foundry, strong in mature and specialty nodes.
Other tracked suppliers of United Microelectronics (UMC)
Other tracked customers of Photronics
Cite as: wafergraph, “Photronics → United Microelectronics (UMC) — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/photronics/umc/ (data as of 2026-09-05).
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