[News] Inside Mitsubishi Electric, Rohm, Toshiba Talks and Denso’s Move: Japan’s Power Chip Consolidation Push
Japan’s power semiconductor industry may be moving toward a major consolidation. According to Nikkei, sources say Mitsubishi Electric, Rohm, and Toshiba are preparing to enter talks to combine their power chip operations. If realized, the merged entity would command about 10% of the global market, potentially becoming the world’s second-largest player.
As the report notes, Rohm has been in talks with Toshiba to integrate their power semiconductor operations, with Mitsubishi Electric now joining the discussions. Separately, Denso has submitted a bid to acquire Rohm. These three-way merger talks could influence the outcome of Denso’s offer.
Scale Push and Complementary Strengths Behind Consolidation
The consolidation may unlock complementary strengths. As Nikkei notes, Rohm has an edge in energy-efficient SiC automotive power semiconductors, while Toshiba has a broad customer base in power-related applications. Mitsubishi Electric, meanwhile, is strong in high-voltage devices for industrial use. By combining their capabilities in design, development, and sales, the three companies could form a comprehensive power semiconductor player serving a wide range of applications. Notably, some analysts expect synergies across data center and power infrastructure applications.
As for the drivers behind the restructuring momentum, Bloomberg notes that Japan’s power semiconductor sector is more fragmented than in Europe and the U.S., where one or two major players dominate each region, making Japan’s competitive environment less favorable. The report adds that Japan’s Ministry of Economy, Trade and Industry expects the market to grow significantly over the medium to long term and views achieving greater scale as a key priority.
Denso’s Chip Expansion and Rohm Acquisition Rationale
Meanwhile, according to Nikkei Xtech, Denso has begun exploring an expansion of its semiconductor business scope and external sales, a move seen as a stepping stone toward acquiring Rohm. The company’s in-house semiconductors have so far been used mainly in its own automotive products. Going forward, it plans to develop chips for industrial and consumer equipment while also considering external sales, including for automotive applications.
Nikkei adds that Denso develops and manufactures power semiconductors for motor control and power conversion, as well as analog chips for sensors. By contrast, it has only a limited presence in logic semiconductors, the “brains” of devices. With a strong focus on automotive applications and a relatively narrow customer base beyond that sector, acquiring Rohm would help Denso strengthen its semiconductor capabilities and expand its sales reach.
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(Photo credit: Rohm)
