Rohm Speeds Up Development of 6th and 7th Gen SiC Devices

Rohm, a leading semiconductor manufacturer, is gearing up to unveil its highly anticipated 5th generation SiC MOSFETs in 2025. In addition to this, the company is fast-tracking the market entry of its 6th and 7th generation devices specifically tailored for electric vehicle applications.

This strategic move by Rohm comes on the heels of the successful integration of SiC bare MOSFETs into three new models by ZEEKR, a prominent Chinese electric vehicle manufacturer under the Geely group. The SiC bare die, belonging to the fourth generation, are currently being supplied from Haimosic, a joint venture between Rohm and the Zhenghai Group in Shanghai, to Viridi E-Mobility Technology in Ningbo for the development of cutting-edge inverter designs.

Collaboration between Geely and Rohm dates back to 2018 when they initiated technical exchanges. This partnership evolved over the years, culminating in a strategic alliance in 2021 with a primary focus on SiC power devices. As a result of this collaboration, Rohm's ecoSiC MOSFETs have been seamlessly integrated into the traction inverters of three flagship ZEEKR models: the X, 009, and 001.

The ZEEKR X compact SUV boasts a remarkable maximum output of 300kW and a cruising range exceeding 400km. On the other hand, the 009 minivan showcases an intelligent cockpit and a sizable 140kWh battery, enabling an exceptional maximum cruising range of 822km. Lastly, the flagship model, 001, impresses with a maximum output surpassing 400kW generated by dual motors, coupled with a range exceeding 580km and a sophisticated four-wheel independent control system.

Rohm's commitment to offering its ecoSiC devices in various formats, including bare chips, discrete components, and modules, is playing a pivotal role in driving the widespread adoption of SiC technology. Notably, Rohm made history by becoming the world's first supplier to commence mass production of SiC MOSFETs back in 2010. The company has since established a robust integrated production system that spans the entire manufacturing process.

For more information on Rohm's SiC power devices, visit www.rohm.com/products/sic-power-devices.