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    ROHM’s 4th Generation SiC MOSFET Bare Chips Adopted in Three EV Models of ZEEKR from Geely

    Integration in traction inverters extends the cruising range and improves performance

    ROHM has announced the adoption of power modules equipped with 4th generation SiC MOSFET bare chips for the traction inverters in three models of ZEEKR EV brand from Zhejiang Geely Holding Group (Geely), a top 10 global automaker. Since 2023, these power modules have been mass-produced and shipped from HAIMOSIC (SHANGHAI) Co., Ltd. – a joint venture between ROHM and Zhenghai Group Co., Ltd. to Viridi E-Mobility Technology (Ningbo) Co., Ltd, a Tier 1 manufacturer under Geely.

    Geely and ROHM have been collaborating since 2018, beginning with technical exchanges, then later forming a strategic partnership focused on SiC power devices in 2021. This led to the integration of ROHM’s SiC MOSFETs into the traction inverters of three models: the ZEEKR X, 009, and 001. In each of these EVs, ROHM’s power solutions centered on SiC MOSFETs play a key role in extending the cruising range and enhancing overall performance.

    ROHM is committed to advancing SiC technology, with plans to launch 5th generation SiC MOSFETs in 2025 while accelerating market introduction of 6th and 7th generation devices. What’s more, by offering SiC in various forms, including bare chips, discrete components, and modules, ROHM is able to promote the widespread adoption of SiC technology, contributing to the creation of a sustainable society.

    ZEEKR Models Equipped with ROHM’s EcoSiC

    The ZEEKR X, which features a maximum output exceeding 300kW and cruising range of more than 400km despite being a compact SUV, is attracting attention even outside of China due to its exceptional cost performance. The 009 minivan features an intelligent cockpit and large 140kWh battery, achieving an outstanding maximum cruising range of 822km. And for those looking for superior performance, the flagship model, 001, offers a maximum output of over 400kW from dual motors with a range of over 580km along with a four-wheel independent control system.

    Market Background and ROHM’s EcoSiC

    In recent years, there has been a push to develop more compact, efficient, lightweight electric systems to expand the adoption of next-generation electric vehicles (xEVs) and achieve environmental goals such as carbon neutrality. For electric vehicles in particular, improving the efficiency of the traction inverter, a key element of the drive system, is crucial for extending the cruising range and reducing the size of the onboard battery, heightening expectations for SiC power devices.

    As the world’s first supplier to begin mass production of SiC MOSFETs in 2010, ROHM continues to lead the industry in SiC device technology development. These devices are now marketed under the EcoSiC brand, encompassing a comprehensive lineup that includes bare chips, discrete components, and modules.

    EcoSiC Brand

    EcoSiC is a brand of devices that utilize silicon carbide (SiC), which is attracting attention in the power device field for performance that surpasses silicon (Si). ROHM independently develops technologies essential for the evolution of SiC, from wafer fabrication and production processes to packaging, and quality control methods. At the same time, we have established an integrated production system throughout the manufacturing process, solidifying our position as a leading SiC supplier.

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