Mitsubishi Electric, Rohm and Toshiba Target September Deal to Merge Power Semiconductor Businesses
Japanese chipmakers aim to create a global power semiconductor leader, strengthening competitiveness in silicon carbide, electric vehicles, renewable energy and AI data centre markets.
Mitsubishi Electric is aiming to reach an agreement by September to combine its power semiconductor business with those of Rohm and Toshiba, as the three Japanese companies seek to strengthen their competitiveness in the rapidly expanding global market for power chips.
The proposed integration would bring together three of Japan's leading power semiconductor manufacturers, creating one of the world's largest suppliers of power devices. The combined business would be better positioned to compete with major international players by increasing manufacturing scale, improving cost efficiency and accelerating technology development.
Power semiconductors are essential components that regulate and convert electrical power in applications ranging from electric vehicles and renewable energy systems to industrial equipment, data centres and consumer electronics. Demand for these devices continues to grow as industries transition towards electrification and energy-efficient technologies.
The three companies began discussions earlier this year after signing a memorandum of understanding to explore the integration of their power semiconductor operations. The proposed merger is intended to strengthen Japan's position in a market where manufacturers are increasingly pursuing consolidation to improve global competitiveness and support the high investment required for next-generation semiconductor technologies.
If completed, the merged operation would rank among the world's leading power semiconductor suppliers, behind only the largest global competitors. By combining their expertise in silicon carbide, power management and industrial semiconductor technologies, Mitsubishi Electric, Rohm and Toshiba aim to expand their presence across high-growth sectors, including electric mobility, renewable energy infrastructure, factory automation and artificial intelligence data centres.
The companies are expected to continue negotiations over the coming months, with the objective of finalising the framework for the integration by September. The proposed combination reflects a broader trend of consolidation within the semiconductor industry as manufacturers seek greater scale, stronger research and development capabilities, and more resilient supply chains to meet rising global demand for advanced power semiconductor solutions.
