United Microelectronics Corp
umc.comWhat Do They Do?
Manufactures chips to customer specifications and sells wafers to fabless design companies and integrated device manufacturers.
20-F for FY2025, filed Apr 30, 2026
Who Are Their Customers?
Its customers are fabless design companies and integrated device manufacturers. UMC works with them on chip design and prototypes, then provides support throughout manufacturing.
20-F for FY2025, filed Apr 30, 2026Our technology and service have attracted two principal types of foundry industry customers: fabless design companies and integrated device…View ↗
We work closely with our customers throughout the design development and prototyping processes. Our design support team closely interacts…View ↗
As a design moves into manufacturing production, we continue to provide ongoing customer support through all phases of the manufacturing…View ↗
How Are They Changing?
Expanded technology collaborations
The older report describes a DENSO partnership on automotive power semiconductors; the latest describes planned process development with Intel, exploration of U.S. wafer production with Polar, and a silicon-photonics process licensed from imec.
20-F for FY2022, filed Apr 27, 2023 20-F for FY2025, filed Apr 30, 2026On April 26, 2022, DENSO Corporation, or DENSO, a leading mobility supplier, and USJC announced that the companies have agreed to…View ↗
On January 25, 2024, we entered into a collaboration with Intel Corporation (the “Collaboration”), pursuant to which the parties agreed to…View ↗
On December 4, 2025, we signed a memorandum of understanding (“MOU”) with Polar Semiconductor, LLC to explore collaboration on delivering…View ↗
On December 8, 2025, we announced a licensing agreement with imec, a world-leading research and innovation hub in advanced semiconductor…View ↗
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