• COSEL Adopts ROHM’s EcoSiC™ in HFA/HCA Series of 3.5kW AC-DC Power Supply Units

    COSEL Adopts ROHM’s EcoSiC™ in HFA/HCA Series of 3.5kW AC-DC Power Supply Units

    3 Min Read

    ROHM has announced the adoption of its EcoSiC™ products, including SiC MOSFETs and SiC Schottky barrier diodes (SBDs) in the HFA/HCA series of 3.5kW output AC-DC power supply units for 3-phase applications from COSEL, a leading power supply manufacturer in Japan. Incorporating ROHM SiC MOSFETs and SiC SBDs into the forced air-cooled HFA series and conduction-cooled HCA series achieves up to 94% efficiency. The HCA series has been mass produced since 2023, while the HFA series began mass production in 2024.

    Many industrial applications that handle high power in the industrial sector, including MRI machines and CO2 lasers, require 3-phase power supplies that differ from the single-phase power supplies used in households. COSEL’s AC-DC power supply units – equipped with ROHM’s EcoSiC™ technology that excels in high-temperature, high-frequency, high-voltage environments – are compatible with 3-phase power supplies from 200VAC to 480VAC, contributing to improved power supply efficiency across a wide range of industrial equipment worldwide.

    Jun Uchida, General Manager, New Product Development Dept. 2, COSEL Co., Ltd.

    “The HFA/HCA series achieve high efficiency despite delivering a high-power output of 3.5kW by incorporating ROHM’s low-loss SiC power devices. Operating at high input voltages typically poses a challenge in reducing losses in high-voltage power devices, but using SiC power devices translates to significantly lower losses compared to conventional solutions, resulting in power supplies that maintains high efficiency and power density even under demanding high-power conditions.”

    Akihiro Hikasa, Group General Manager, Power Devices Business Unit, SiC Business Section, ROHM Co., Ltd.

    “We are delighted to support COSEL, an industry leader in power supply systems, by providing SiC power devices. A leading company in SiC power devices, ROHM also provides comprehensive power solutions that combine peripheral components. In addition, by addressing customer issues, we also improve device performance by incorporating the insights gained into our products. Going forward, we will continue to collaborate with COSEL to contribute to a sustainable society by enhancing the efficiency of industrial equipment that handle large amounts of power.”

    The HFA/HCA series are 3.5kW power supplies featuring a wide input range (200VAC to 480VAC) that meets global power supply requirements. This allows them to be used anywhere in the world without the need to modify the power supply for each region, contributing to the standardization of application designs. Both forced air-cooled (HFA series) and conduction-cooled (HCA series) models – selectable based on operating environment – are available in 48V and 65V output voltage variants that can be used as power sources for a variety of high-power applications such as laser generation and MRI.

    Original – ROHM

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  • GlobalFoundries Received Additional $9.5 million in Federal Funding to Advance Manufacturing of GaN on Silicon Semiconductors

    GlobalFoundries Received Additional $9.5 million in Federal Funding to Advance Manufacturing of GaN on Silicon Semiconductors

    3 Min Read

    GlobalFoundries has received an additional $9.5 million in federal funding from the U.S. government to advance the manufacturing of GF’s essential gallium nitride (GaN) on silicon semiconductors at its facility in Essex Junction, Vermont.

    The funding moves GF closer to large-scale production of GaN chips. With the ability to handle high voltages and temperatures, GaN chip technology is essential for enabling higher performance and greater energy efficiency across a range of RF and high-power control applications including automobiles, datacenter, IoT, aerospace and defense. 

    With the award, GF will continue to add new tools, equipment and prototyping capabilities to its market-leading GaN IP portfolio and reliability testing as the company moves closer to full-scale manufacturing of its 200mm GaN chips in Vermont. GF is committed to creating a fast and efficient path for customers to realize new innovative designs and products that leverage the unique efficiency and power management benefits of GaN chip technology. 

    “GF is proud of its leadership in GaN chip technology, which is positioned to make game-changing advances across multiple end-markets and enable new generations of devices with more energy-efficient RF performance and faster-charging, longer-lasting batteries,” said Nicholas Sergeant, vice president of IoT and aerospace and defense at GF. “We appreciate the U.S. government’s partnership and ongoing support of our GaN program. Realizing full-scale GaN chip manufacturing will be a catalyst for innovation, for both our commercial and government partners, and will add resilience and strengthen the semiconductor supply chain.” 

    The new funding, awarded by the U.S. Department of Defense’s Trusted Access Program Office (TAPO), represents the latest federal investment to support GF’s GaN program in Vermont.  

    “This strategic investment in critical technologies strengthens our domestic ecosystem and national security, and ensures these assets are readily available and secure for DoD utilization. In concert with key partners, this approach fortifies defense systems, empowering resilience and responsiveness,” said Dr. Nicholas Martin, Director at Defense Microelectronics Activity. 

    In total, including the new award, GF has received more than $80 million since 2020 from the U.S. government to support research, development and advancements to pave the way to full-scale GaN chip manufacturing. 

    Vermont is a U.S.-accredited Trusted Foundry and the global hub of GF’s GaN program, with longstanding leadership in 200mm semiconductor manufacturing. In July 2024, GF acquired Tagore Technology’s Gallium Nitride Power portfolio and created the GF Kolkata Power Center in Kolkata, India. The center is closely aligned with and supports GF’s facility in Vermont, and is helping advance GF’s research, development and leadership in GaN chip manufacturing. 

    Original – GlobalFoundries

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