Mitsubishi Electric Corporation has recently announced the completion of its new power semiconductor manufacturing facility in Kikuchi City, Kumamoto Prefecture, marking a significant step in the company’s expansion of its semiconductor production capabilities. A completion ceremony was held on October 2, 2025, to commemorate the milestone.
The six-story, 42,000-square-meter facility, built at a cost of approximately ¥100 billion ($680 million), will form part of Mitsubishi Electric’s Shisui Plant. The new site is scheduled to begin operations in November 2025, with mass production planned for 2027.
The plant will specialize in silicon carbide (SiC) power semiconductors, which offer superior energy efficiency compared to traditional silicon-based chips. These components are increasingly vital for electric vehicles (EVs) and energy-efficient home appliances, as global demand for cleaner and more efficient technologies continues to rise.
However, Mitsubishi Electric has postponed portions of its equipment expansion plan to fiscal 2031 and beyond, citing slower-than-anticipated growth in EV demand. “We will decide how many production lines to install by examining market conditions and other factors,” said Kei Uruma, President, Mitsubishi Electric.
Once operational, the new facility will handle critical production processes such as etching circuits onto wafers, reinforcing Mitsubishi Electric’s commitment to advancing Japan’s position in next-generation semiconductor manufacturing.
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