Tokyo Seimitsu (Accretech) → Amkor Technology
As of 2026-09-05, Tokyo Seimitsu (Accretech) is a tracked supplier of Amkor Technology. Tokyo Seimitsu (Accretech) is a major in Equipment (Back End) (headquartered in Japan); Amkor Technology is a major in OSAT (headquartered in United States). Tokyo Seimitsu (Accretech) has 9 tracked customers; Amkor Technology has 16 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
Tokyo Seimitsu (Accretech) (major in Equipment (Back End)) is a tracked supplier of Amkor Technology (major in OSAT). Wafer dicing, grinding, and metrology equipment maker. Second-largest OSAT; building advanced packaging capacity in Arizona. The edge is one of 16 tracked suppliers of Amkor Technology and one of 9 tracked customers of Tokyo Seimitsu (Accretech).
Source: derived from both company records and the counted edges.
The two companies
Tokyo Seimitsu (Accretech) (supplier)
Wafer dicing, grinding, and metrology equipment maker.
Amkor Technology (customer)
Second-largest OSAT; building advanced packaging capacity in Arizona.
Other tracked suppliers of Amkor Technology
Other tracked customers of Tokyo Seimitsu (Accretech)
Cite as: wafergraph, “Tokyo Seimitsu (Accretech) → Amkor Technology — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/tokyo_seimitsu/amkor/ (data as of 2026-09-05).
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