Siltronic → United Microelectronics (UMC)
As of 2026-09-05, Siltronic is a tracked supplier of United Microelectronics (UMC). Siltronic is a major in Materials (headquartered in Germany); United Microelectronics (UMC) is a major in Foundry (headquartered in Taiwan). Siltronic 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
Siltronic (major in Materials) is a tracked supplier of United Microelectronics (UMC) (major in Foundry). Top-four silicon wafer producer headquartered in Munich. 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 Siltronic.
Source: derived from both company records and the counted edges.
The two companies
Siltronic (supplier)
Top-four silicon wafer producer headquartered in Munich.
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 Siltronic
Cite as: wafergraph, “Siltronic → United Microelectronics (UMC) — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/siltronic/umc/ (data as of 2026-09-05).
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