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VisIC Technologies announced a new partnership aimed at advancing high-efficiency GaN inverter technology for the EV market. This collaboration will provide automotive OEMs with power semiconductors that exceed silicon carbide (SiC) performance, while offering lower costs at device and system level.
In a recent test conducted at AVL’s state-of-the-art facilities in Germany, an inverter based on VisIC’s GaN-on-Silicon D³GaN components proved an outstanding performance. Mounted on AVL’s e-motor test bench and controlled by AVLs SOP eDrive controls algorithm, the system achieved a benchmark efficiency level of 99.67% at 10kHz, stunningly climbing to over 99.8% efficiency at 5kHz — which outperforms comparable SiC inverters by up to 0.5% and is cutting energy losses by more than 60%.
This breakthrough positions the AVL and VisIC partnership as a compelling option for automakers striving to balance high efficiency with affordability in EV design. It is worth noting that VisIC’s GaN-on-Silicon power devices require significantly less energy and therefore CO2 during the chip production process compared to SiC. They can be produced in widespread 200mm and 300mm silicon foundries, which makes scaling production a straightforward process.
“With AVL, we’re making cutting-edge GaN inverter technology accessible for even more electric vehicles, establishing a new benchmark for efficiency and cost-effectiveness in the industry,” said Gregory Bunin, CTO of VisIC Technologies. “Our partnership reflects a shared commitment to driving EV innovation that’s both impactful and accessible, bringing GaN’s unparalleled performance to a broader market.”
“Working with VisICs new GaN power module for high-power systems enables us to offer our customers cutting-edge solutions that are optimally aligned with the requirements of next-generation drive systems. These include, among other things, high power density combined with reduced overall system costs,” added Dr. Thomas Frey, Head of Segment E-Mobility & E-Drive System at AVL Software and Functions GmbH. “Together, we can significantly advance e-mobility and help reduce the carbon footprint.”
Looking ahead, AVL and VisIC plan to expand their GaN-on-Si platform to include 800V GaN power modules, ensuring that their technology remains scalable and adaptable to the needs of the growing BEV market. This collaboration places AVL and VisIC Technologies at the forefront of GaN inverter technology, establishing new standards for energy efficiency and performance across the EV industry.
Original – VisIC Technologies
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VisIC Technologies Ltd. has partnered with Heraeus Electronics and PINK to develop an advanced power module utilizing D3GaN technology. This groundbreaking power module is based on a silicon nitride (Si₃N₄) ceramic substrate, an innovative silver (Ag) sintering process and advanced top side interconnect, promising unprecedented reliability and performance for battery electric vehicles (BEVs).
The collaboration brings together VisIC’s expertise in GaN-based devices, Heraeus Electronics’ cutting-edge packaging materials know-how, and PINK’s state-of-the-art sintering technology. The synergy of these industry leaders has culminated in the development of a power module that is setting new standards for GaN based power modules to revolutionize the EV industry.
VisIC’s D3GaN technology is at the heart of this power module, offering significant improvements in efficiency, thermal management, and power density. This technology leverages the superior electrical properties of gallium nitride to deliver faster switching speeds and higher power handling capabilities compared to traditional silicon-based devices.
The use of a Si₃N₄ metal ceramic substrate is a key innovation in this power module. Si₃N₄ is known for its excellent thermal conductivity, mechanical strength, and reliability under high-temperature conditions. These properties are crucial for the demanding environment of electric vehicle applications, ensuring the power module can withstand the rigors of everyday use while maintaining optimal performance.
The adoption of the silver sintering process by PINK enhances the thermal and electrical conductivity of the module. Silver sintering is a low-temperature bonding process that creates robust and reliable connections between components, improving the module’s overall durability and efficiency. This process is critical for the high reliability required in EV powertrains, where consistent performance is non-negotiable.
The resulting power module is designed to meet the stringent reliability and performance standards of the electric vehicle industry. Its advanced materials and innovative construction techniques ensure it can deliver the high-power density of over 500Arms/650V and efficiency needed for modern BEVs, while also offering long-term reliability and durability at a cost point near silicon devices.
This collaboration marks a significant milestone in the advancement of power electronics for electric vehicles. The integration of VisIC’s D3GaN technology with Heraeus Electronics’ sintering paste and PINK’s Ag and Cu sintering process and flexible sintering equipment sets a new benchmark for power module performance in the EV market. This innovation is expected to drive the adoption of GaN technology in EV applications, paving the way for more efficient, reliable, and sustainable electric transportation solutions.
Tamara Baksht, CEO of VisIC, state: “We are thrilled to work with the leading manufacturer of sintering processes of Heraeus Electronics and PINK and adapt their experience into GaN based power modules to develop the next generation of power module for high volume automotive inverter applications.”
PINK, Andrea Pink, CEO of PINK statement: “We are excited to work with such a future driven company as VisIC together with our long-term partner Heraeus Electronics, supporting the newest product innovation for GaN applications.”
Heraeus Electronics Dr. Michael Jörger, EVP Head of Business Line Power Electronic Materials added: “With our materials, application know-how and engineering services we are glad to work with our partners on speeding up the innovative approach of highly efficient GaN modules for automotive applications.”
Original – VisIC Technologies
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VisIC Technologies announced that the samples of the V22TG D3GAN will be available in the first quarter of 2024. This early availability allows manufacturers to assess and experience the performance and benefits of the package firsthand, aiding in the rapid development of the next generation of systems.
Key Features and Benefits:
1. Advanced Leaded Top-Side Cooled Isolated.
2. Automotive and High Voltage Capability.
3. High Power Density and Low On-Resistance.
4. Versatile and Easy to Implement.Dr. Tamara Baksht, CEO and Co-Founder: “This advanced power package not only offers exceptional performance and reliability but also provides the versatility and ease of implementation required for emerging automotive and industrial applications. We are confident that the V22TG D3GAN will empower manufacturers to accelerate the adoption of electric vehicles.”
Original – VisIC Technologies
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IQE plc, the leading supplier of compound semiconductor wafer products and advanced material solutions to the global semiconductor industry, announced a strategic collaboration with VisIC Technologies, a global leader in the provision of GaN (Gallium Nitride) power solutions to the automotive sector, to develop the highest reliability gallium nitride D-Mode (D-Mode GaN) power products for use in electric vehicles inverters.
IQE and VisIC Technologies will collaborate to develop 200mm (8”) D-Mode GaN power epiwafers that will be developed at IQE’s UK facilities, leveraging IQE’s well-established expertise in GaN technology.
VisIC Technologies, with its ground-breaking D3GaN technology (Direct Drive D-Mode GaN), brings the future of EV inverters into focus. This technology promises to reduce power consumption, increase reliability and enhance performance in electric vehicles. By combining VisIC Technologies’ innovative Power Electronics solutions with IQE’s epitaxy excellence, this partnership aims to accelerate the adoption of GaN-on-Silicon technology in EVs, significantly contributing to the evolution of sustainable transportation.
The collaboration marks another important milestone in IQE’s strategy of diversification into the high-growth Power market, first announced at its 2022 Capital Markets Day. IQE sees significant opportunities in the GaN Power epiwafer market in particular, which is forecast to reach a $632m value by 2027.
Original – VisIC Technologies
