Private company

United Microelectronics (United States)

United Microelectronics (United States) is an American company based in Sunnyvale, founded in 1980.¹ It is part of United Microelectronics Corporation.¹

Last updated Oct 21, 2026.

Overview

1980Founded¹

HeadquartersSunnyvale, United States¹
Websitewww.umc.com/english

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Corporate structure

United Microelectronics (United States) is part of a group headed by United Microelectronics Corporation. 6 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

United Microelectronics Corporation Hsinchu City, Taiwan
- United Microelectronics (United States) Sunnyvale, United States
- ITE Subsidiary · Hsinchu Science Park
- Silicon Integrated Systems Subsidiary · Hsinchu, Taiwan
- Wavetek Microelectronics Corporation Subsidiary
- UMC Capital Corporation Subsidiary · Camana Bay, Cayman Islands

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Subsidiaries and ownership

Parent company

United Microelectronics Corporation

From Wikidata.¹

Timeline

1980Founded Founded¹

Sources

The numbers on this page point here. Each one links to the record it came from.

1
WikidataUnited Microelectronics (United States) on Wikidata