13

Jul . 2023

Expanding production capacity for SiC power devices: ROHM will acquire new production site

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ROHM has reached a basic agreement with Solar Frontier K.K. to acquire the assets of Solar Frontier's former Kunitomi Plant, located in Japan.

The acquisition is scheduled to take place in October 2023 and will belong to the ROHM Group's main production bases.


The role of semiconductors, one of ROHM’s core business fields is becoming increasingly important to achieving a decarbonized society.

In particular, the automotive and industrial equipment markets are undergoing technological innovation such as electrification in order to reduce environmental impact and achieve carbon neutrality. With this, the demand is increasing – especially for power and analog semiconductors.

As further expansion of the semiconductor market is expected, the ROHM Group intends to expand its production capacity continuously, particularly for silicon carbide (SiC) power devices, and ensure a stable supply to ROHM’s customers.

1. Outline of the other party to the agreement

Company Name: Solar Frontier K.K.

Representative: Hiroshi Watanabe, President & CEO

Main Businesse:  Development and sales of solar power systems

Headquarters: Teigeki Building, 3-1-1 Marunouchi, Chiyoda-ku, Tokyo, Japan

Shareholder: Idemitsu Kosan Co.,Ltd 100%

2. Outline of the assets to be acquired (former Kunitomi Plant)

Capacity Expansion Plan of SiC Business

Outline of New Plant

Location: 1815 Taziri, Kunitomi-cho, Higashimorokata-gun, Miyazaki, Japan

Site area: Approximately 400,000 m2

Total floor area: Approximately 230,000 m2

*Solar Frontier plans to continue to use part of the site and buildings as its business office (lease).

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