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Message from the President

Aiming to become a foundry company loved by customers

United Semiconductor Japan Co., Ltd. (USJC) got off to a new start on October 1st, 2019, as a member of United Microelectronics Corporation (UMC), s leading global semiconductor foundry.

The former company, Mie Fujitsu Semiconductor Limited (MIFS) has provided high-quality technologies and services to customers worldwide as 300mm wafer foundry joint venture between Fujitsu Semiconductor Limited (FSL) and UMC. Its manufacturing base, Mie Plant has contributed to the growth of the semiconductor industry in Japan and that of Fujitsu through the development and mass production of advanced memory and logic devices.

USJC offers a platform for best-in-class processes that realize ultra-low power consumptions based on deeply depleted channel (DDC) transistors with embedded non-volatile memory options. We are also working on supporting RF options, in particular millimeter wave technology which are suitable for automotive and IoT market. Our strength are stringent production management system, highly experienced engineers, continuing production improvement activities, and superior risk-response capabilities such as hybrid seismic isolation structures and LNG bases.

USJC will contribute to improve the market competitiveness of our customers’ products by dramatically enhancing their performance and realizing IoT society as a Japan-based semiconductor wafer fabrication.

United Semiconductor Japan Co., Ltd.

S S Hong, Representative Director and Chairman

Michiari Kawano, Representative Director and President



USJC Way

As a member of UMC Group, our company formulated a new corporate philosophy, USJC Way, in February 2020.
USJC Way consists of 3 elements: Vision (How we wish to be in the future), Mission (What we should achieve), and Values (How we should behave).

USJC Vision & Mission



USJC Values



USJC Way provides a common direction for all employees of USJC. By adhering to it in our daily activities and playing our roles as members of UMC Group, we strive to realize synergies with UMC, further enhance corporate value and contribute to global and local societies.

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