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Renesas Electronics Corporation and Wolfspeed, Inc. announced the execution of a wafer supply agreement and $2 billion (USD) deposit by Renesas to secure a 10 year supply commitment of silicon carbide bare and epitaxial wafers from Wolfspeed. The supply of high-quality silicon carbide wafers from Wolfspeed will pave the way for Renesas to scale production of silicon carbide power semiconductors starting in 2025. The signing ceremony of the agreement was held at Renesas’ headquarters in Tokyo between Hidetoshi Shibata, President and CEO of Renesas, and Gregg Lowe, President and CEO of Wolfspeed.
The decade-long supply agreement calls for Wolfspeed to provide Renesas with 150mm silicon carbide bare and epitaxial wafers scaling in CY2025, reinforcing the companies’ vision for an industry-wide transition from silicon to silicon carbide semiconductor power devices. The agreement also anticipates supplying Renesas with 200mm silicon carbide bare and epitaxial wafers after the recently announced John Palmour Manufacturing Center for Silicon Carbide (the “JP”) is fully operational.
The need for more efficient power semiconductors, which supply and manage electricity, is dramatically increasing throughout automotive and industrial applications, spurred by the growth of electric vehicles (EVs) and renewable energy. Renesas is moving quickly to address the growing demand for power semiconductors by expanding its in-house manufacturing capacity. The company recently announced the restart of its Kofu Factory to produce IGBTs, and establishment of a silicon carbide production line at its Takasaki Factory.
Compared to conventional silicon power semiconductors, silicon carbide devices enable higher energy efficiency, greater power density and a lower system cost. In an increasingly energy-conscious world, the adoption of silicon carbide is becoming ever more pervasive across multiple high-volume applications spanning EVs, renewable energy and storage, charging infrastructure, industrial power supplies, traction and variable speed drives.
“The wafer supply agreement with Wolfspeed will provide Renesas with a stable, long-term supply base of high-quality silicon carbide wafers. This empowers Renesas to scale our power semiconductor offerings to better serve customers’ vast array of applications,” said Hidetoshi Shibata, President and CEO of Renesas. “We are now poised to elevate ourselves as a key player in the accelerating silicon carbide market.”
“With the steepening demand for silicon carbide across the automotive, industrial and energy sectors, it’s critically important we have best-in-class power semiconductor customers like Renesas to help lead the global transition from silicon to silicon carbide,” said Gregg Lowe, President and CEO of Wolfspeed. “For more than 35 years, Wolfspeed has focused on producing silicon carbide wafers and high-quality power devices, and this relationship marks an important step in our mission to save the world energy.”
The Renesas $2 billion deposit will help support Wolfspeed’s ongoing capacity construction projects including the JP, the world’s largest silicon carbide materials factory in Chatham County, North Carolina. The state-of-the-art, multi-billion-dollar facility is targeted to generate a more than 10-fold increase from Wolfspeed’s current silicon carbide production capacity on its Durham, North Carolina campus. The facility will produce primarily 200mm silicon carbide wafers, which are 1.7x larger than 150mm wafers, translating into more chips per wafer and ultimately, lower device costs.
Original – Renesas Electronics
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Navitas Semiconductor and Plexim GmbH announced a partnership to release GeneSiC G3™ SiC MOSFET and Gen 5 MPS diode PLECS thermal loss models for highly-accurate simulations of complete power electronics systems.
Power designers can simulate power and thermal losses in various soft- and hard-switching applications. Proprietary GeneSiC trench-assisted planar-gate MOSFET technology delivers the lowest RDS(ON) at high temperature and the highest efficiency at high speeds, and new MPS diodes with ‘low-knee’ characteristics drive unprecedented, industry-leading levels of performance, robustness and quality.
“Accurate, empirically-based simulation models maximize the chance of first-time-accurate designs, accelerating time-to-market and time-to-revenue,” noted Dr. Ranbir Singh, Navitas EVP for the GeneSiC business line. “For the power designer, understanding the leading-edge performance of GeneSiC MOSFETs and MPS diodes with detailed device characteristics, plus power, efficiency and thermal analysis is a critical competitive advantage.”
“The intuitive and highly-efficient PLECS lookup-table based approach to simulating thermal semiconductor losses in complex power electronic circuits is key,” said Kristofer Eberle, Plexim, North America. “Unlike legacy modeling approaches that are not well-suited to new wide bandgap materials, PLECS uses a simplified, but accurate behavioral description to highlight the superior performance of the GeneSiC MOSFETs.”
PLECS models for GeneSiC MOSFETs and MPS diodes are available via genesicsemi.com.
Original – Navitas Semiconductor
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Kulicke and Soffa Industries, Inc. announced the launch of several new systems and capabilities serving high-volume semiconductor and fast-growing power-semiconductor applications.
POWERCOMM™ and POWERNEXX™ represent the next evolution in advanced wire bonding systems and are designed with a new generation of intuitive advanced process capabilities which deliver maximum levels of performance, efficiency, and productivity. Additionally, both systems deliver enhanced mean time between assists (MTBA), with automated recovery features that improve the machine to operator ratio and better support localization of semiconductor assembly.
The POWERCOMM™ advanced wire bonding solution is designed to support high-volume discrete and low-pin count devices commonly used in applications such as data centers, automotive, industrial automation, smartphones, wearables and connected devices.
The POWERNEXX™ advanced wire bonding solution is optimized for higher density QFN packages with widths of up to 100mm. The improved illumination design on POWERNEXX™ allows faster alignment time through its Pattern Recognition System (PRS). Faster alignment and advanced process capabilities deliver the industry leading UPH and lowest Cost-of-Ownership.
In addition to the new POWERCOMM™ and POWERNEXX™ systems, K&S extends its leadership in wedge bond applications with new High-Power-Interconnect (HPI) capabilities addressing the emerging needs of power devices. HPI capabilities are becoming increasingly necessary to assemble applications such as inverters, battery assembly and charging infrastructure which support the growth and increasing efficiency requirements of sustainable energy and electric vehicle applications. The need for more efficient and higher-current applications are driving rapid changes to the power semiconductor market by increasing demand in emerging compound semiconductors, such as Silicon Carbide (SiC) and Gallium Nitride (GaN), but are also demanding new capabilities to support next-generation battery assembly and are accelerating the transition from aluminum wire and ribbon, to copper wire and ribbon. Next generation HPI capabilities are being introduced across Kulicke & Soffa’s leading wedge bonder portfolio today.
“Our rich history of innovation and ongoing development priorities are enabling us to provide additional value to the increasingly critical assembly process. This recent set of new wire bonding systems and capabilities will better enable customers to optimize productivity, improve material handling capabilities and significantly lower cost-of-ownership,” said Shawn Sarbacker, Kulicke and Soffa’s Vice President of Ball Bonder Business Unit.
Original – Kulicke and Soffa Industries
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Bourns, Inc. announced its first 650 V – 1200 V Silicon Carbide (SiC) Schottky Barrier Diodes (SBDs). The Bourns® SiC SBD line consists of six models engineered to provide excellent current carrying and thermal capabilities and high power density for increased performance and reliability. These capabilities make Bourns® SiC SBDs optimal high efficiency power conversion solutions for the growing variety of high frequency applications that need to meet reduced size and lower system cost requirements.
Telecom/Server Switched-Mode Power Supplies (SMPS), photovoltaic inverters, PC power and motor drives are a few of the applications that can benefit from the features provided in the Bourns® BSD Series SiC SBDs.
To address ongoing design demands for ever higher power efficiency, Bourns® SiC SBDs feature low forward voltage (VF) and high thermal conductivity, which increases efficiency while lowering power dissipation, satisfying application requirements of 650 V and 1200 V solutions.
The series also has no reverse recovery current to reduce EMI, enabling these SiC SBDs to significantly lower energy losses. In addition to offering 650 V to 1200 V operation with currents in the 6-10 A range, the six new BSD models of wide band gap diodes from Bourns offer designers various forward voltage, current and package options including TO220-2, TO247-3, TO252, and DFN8x8.
The six Bourns® Model BSD SiC SBDs are available now. These models are RoHS compliant, halogen free, Pb free and their epoxy potting compound is flame retardant to the UL 94V-0 standard.
For more detailed product information, please see: www.bourns.com/products/diodes/silicon-carbide-sic-schottky-barrier-diodes
Original – Bourns
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Diodes Incorporated announced a further enhancement of its wide-bandgap product offering with the release of the DMWSH120H90SM4Q and DMWSH120H28SM4Q automotive-compliant Silicon Carbide (SiC) MOSFETs. These N-channel MOSFETs respond to the increasing market demand for SiC solutions that enable better efficiency and higher power density in electric and hybrid-electric vehicle (EV/HEV) automotive subsystems like battery chargers, on-board chargers (OBC), high-efficiency DC-DC converters, motor drivers, and traction inverters.
The DMWSH120H90SM4Q operates safely and reliably up to 1200VDS with a gate-source voltage (Vgs) of +15/-4V and has an RDS(ON) of 75mΩ (typical) at 15Vgs. This device is designed for OBCs, automotive motor drivers, DC-DC converters in EV/HEV, and battery charging systems.
The DMWSH120H28SM4Q operates at up to 1200VDS, +15/-4Vgs, and has a lower RDS(ON) of 20 mΩ (typical) at 15Vgs. This MOSFET has been designed for motor drivers, EV traction inverters, and DC-DC converters in other EV/HEV subsystems. Low RDS(ON) enables these MOSFETs to run cooler in applications that require high power density.
Both products have low thermal conductivity (RθJC=0.6°C/W), enabling drain currents up to 40A in the DMWSH120H90SM4Q and 100A in the DMWSH120H28SM4Q. They also have fast intrinsic and robust body diodes with low reverse recovery charge (Qrr) of 108.52nC in the DMWSH120H90SM4Q and 317.93nC in the DMWSH120H28SM4Q. This enables them to perform fast switching with reduced power losses.
By using the planar manufacturing process, Diodes has created new MOSFETs that offer more robust and reliable performance in automotive applications—and with increased drain current, breakdown voltage, junction temperature, and power rings as compared to previously released versions. The devices are available in a TO247-4 (Type WH) package, which offers an additional Kelvin sense pin. This can be connected to the source to optimize switching performance, enabling even higher power densities.
Original – Diodes Incorporated
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Wolfspeed, Inc. announced a $1.25 billion secured note financing from an investment group led by Apollo, with an accordion feature for up to an additional $750 million.
The financing supports the company’s previously announced U.S. expansion efforts and is a significant step toward achieving the company’s $6.5 billion global capacity expansion plan. Execution of Wolfspeed’s U.S. growth plan will accelerate adoption of silicon carbide across a wide array of end markets and support meaningful job creation in US semiconductor manufacturing.
The 9.875% notes will mature in 2030 and are optionally prepayable by the company based on the terms of the indenture governing the notes. The investment was led by funds managed by Apollo’s ~$450 billion Credit business.
“The group’s commitment to Wolfspeed further validates the importance of silicon carbide to the global energy transition,” said Gregg Lowe, president and chief executive officer of Wolfspeed. “This important step in our financing provides significant capital to scale up near-term operations at our Mohawk Valley Fab and construction of our Siler City materials facility to help us capture the growing silicon carbide market opportunity. The financing positions Wolfspeed to continue to lead the growth of the industry and focus on the execution of our vertically integrated strategy to meet growing demand.”
“Our agreement with Apollo and its capital partners achieves our near-term funding targets while prioritizing our shareholders with a new, non-dilutive source of financing,” said Neill Reynolds, chief financial officer of Wolfspeed. “Apollo and its capital partners’ investment follows an extensive review of our business and demonstrates their conviction in our team, operating plan and trajectory.”
“Apollo is pleased to provide a dynamic and flexible credit solution to Wolfspeed as it significantly expands its silicon carbide manufacturing capacity. The company’s growth plan is designed to deliver critical silicon carbide products for a range of automotive and industrial uses, and support sustainability goals with market-leading technology,” said Joseph Jackson, Partner, Apollo Credit. “With the help of our capital partners, we have crafted a facility that can provide up to $2 billion to ramp the company’s expansion plans.”
Wells Fargo & Company (NYSE: WFC) and Morgan Stanley & Co. LLC served as financial advisors to Wolfspeed and Latham & Watkins LLP and Smith, Anderson, Blount, Dorsett, Mitchell & Jernigan, L.L.P. served as legal counsel to Wolfspeed. Paul, Weiss, Rifkind, Wharton & Garrison LLP served as legal counsel to the Apollo funds and the noteholder group. Apollo Capital Solutions provided capital markets and structuring advisory services on the transaction.
Original – Wolfspeed
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Airbus, a global pioneer in the aerospace industry, and STMicroelectronics, have signed an agreement to cooperate on power electronics Research & Development to support more efficient and lighter power electronics, essential for future hybrid-powered aircraft and full-electric urban air vehicles.
The collaboration builds on evaluations already conducted by both companies to explore the benefits of wide bandgap semiconductor materials for aircraft electrification. Wide bandgap semiconductors like Silicon Carbide (SiC) and Gallium Nitride (GaN) have superior electrical properties compared with traditional semiconductors like silicon. They enable the development of smaller, lighter and more efficient high-performance electronic devices and systems, particularly in applications requiring high power, high frequency, or high-temperature operations.
The cooperation will focus on developing SiC and GaN devices, packages, and modules adapted for Airbus’ aerospace applications. The companies will assess these components by conducting advanced research and tests on demonstrators, such as e-motor control units, high and low voltage power converters, and wireless power transfer systems.
Original – STMicroelectronics
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Vitesco Technologies, a leading international manufacturer of modern drive technologies and electrification solutions, has secured strategically important capacities in energy-efficient silicon carbide power semiconductors through a long-term supply partnership with ROHM – worth over one billion US dollars until 2030. The development partnership with the manufacturer ROHM, which began in 2020, created the basis for the supply partnership now signed in Regensburg. Vitesco Technologies’ advanced inverters with integrated ROHM SiC chips will be adopted by two customers, to be applied inside electric vehicle powertrains. Vitesco Technologies will start supplying a first series project as early as 2024. The company is thus even ahead of the originally targeted timeline.
SiC devices enable the design of particularly efficient power electronics, such as those needed for electric car inverters. SiC chips are a key technology, particularly for high voltages and for vehicles with demanding range targets and optimum overall efficiency. During the existing development partnership with ROHM the relevant SiC chips were further optimized for use in automotive inverters starting in 2024.
Silicon carbide belongs to the so-called wide bandgap semiconductors, whose wide bandgap (simplified: the energy gap between the non-conductive state and the conductive state of the electrons in the material) enables lower electrical resistance, fast and low loss switching chips for power electronics. At the same time, SiC chips are more thermally resistant, so that the power density of electronics can be increased.
Thanks to these features, SiC electronics have reduced conversion losses compared to conventional silicon (Si). Especially at high voltage levels such as 800 V, SiC inverters are more efficient than Si models. Since 800 V is the prerequisite for fast and thus convenient high-voltage charging, SiC devices are at the beginning of a worldwide boom. Reduced conversion losses in the inverter are also significant for the overall efficiency of electric driving and thus for range. Competition for sufficient capacities in components made of this high-tech material is correspondingly fierce.
Original – Vitesco Technologies
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LATEST NEWS / SiC / TOP STORIES / WBGSK Powertech Adopts Silvaco’s Victory TCAD Solution for the Development of NextGen SiC Power Devices
June 15, 2023
2 Min ReadSilvaco Group, Inc. (“Silvaco”), a provider of TCAD, EDA software, and design IP, announced that SK Powertech has adopted its Victory TCAD (Technology Computer-Aided Design) solution for power devices to accelerate research and development of its next generation SiC (Silicon Carbide) power devices. The Victory TCAD solution enables SK Powertech to achieve significant improvements in its power management technology.
SK Powertech is a leading provider of compact SiC power devices for high voltage/high temperature applications serving growing end markets such as electric vehicles, railways, and alternative energy. SK Powertech’s products are optimal for smaller, light-weight packages with high voltage/high temperature requirements.
“To achieve significant advances in SiC power semiconductor performance, we sought a partner who could assist us in implementing our next-generation SiC power technology. Through our collaboration with Silvaco’s technical team and the utilization of their Victory TCAD Solution for power devices, we successfully transformed conceptual ideas into actual working devices,” said Dr. Changheon Yang, director of R&D center at SK Powertech. “The combination of the advanced feature set in Victory TCAD Solution and Silvaco’s depth of technical capabilities enables us to deliver the best products and to meet our end market requirements.”
“The expanding markets for power management in solar, automotive, industrial applications and embedded computers are driving the growing adoption of SiC power devices,” said Dr. Babak Taheri, CEO of Silvaco Group. “The success of SK Powertech demonstrates the benefits of using Silvaco Victory TCAD solution for power devices. This solution enables the development of cutting-edge semiconductor products that drive innovation and advancement in the field.”
“Our Victory TCAD solution is recognized in the semiconductor industry for its simulation and analyses capabilities and is widely adopted in the SiC power devices market,” said Eric Guichard, Senior Vice President, and General Manager of the TCAD business unit of Silvaco. “With Silvaco’s TCAD solution, SK Powertech is well-positioned to make significant advancements in SiC power device technology and to contribute to the adoption of its SiC devices in various industries.”
Original – Silvaco
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Infineon presents its new generation of 1200 V CoolSiC™ MOSFETs in TO263-7 for automotive applications. The automotive-graded silicon carbide (SiC) MOSFET generation offers high power density and efficiency, enables bi-directional charging and significantly reduces system cost in on-board charging (OBC) and DC-DC applications.
The 1200 V CoolSiC family member offers best-in-class switching performance through 25 percent lower switching losses compared to the first generation. This improvement in switching behavior enables high-frequency operation, leading to smaller system sizes and increased power density. With a Gate-source threshold voltage (V GS(th)) greater than 4 V and a very low Crss/ Ciss ratio, reliable turn-off at V GS = 0 V is achieved without the risk of parasitic turn-ons. This allows for unipolar driving, resulting in reduced system cost and complexity. In addition, the new generation features a low on resistance (R DS(on)), reducing conductive losses over the whole temperature range of -55°C to 175°C.
The advanced diffusion soldering chip mount technology (.XT technology) significantly improves the package’s thermal capabilities, lowering the SiC MOSFET junction temperature by 25 percent compared to the first generation.
Moreover, the MOSFET has a creepage distance of 5.89 mm, meeting 800 V system requirements and reducing coating effort. Infineon is offering a range of R DS(on) options to cater to diverse application demands, including the only 9 mΩ type in the TO263-7 package currently on the market.
Original – Infineon Technologies
