-
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
-
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
-
Mitsubishi Electric Corporation announced that it will begin shipping samples of its new NX-type full-SiC (silicon carbide) power semiconductor module for industrial equipment on June 14. The module, which reduces internal inductance and incorporates a second-generation SiC chip, is expected to contribute to the realization of more efficient, smaller and lighter-weight industrial equipment.
Power semiconductors are increasingly being utilized to convert electric power extra efficiently and thereby help to lower the carbon footprint of global society. Expectations are particularly high for SiC power semiconductors because of their capability to significantly reduce power loss. The demand is expanding for high-power, high-efficiency power semiconductors capable of improving the power-conversion efficiency of components such as inverters used in industrial equipment.
Mitsubishi Electric began releasing power semiconductor modules equipped with SiC chips in 2010. The new module, which features a low-loss SiC chip and optimized electrode structure, reduces internal inductance by 47% compared to its existing predecessor, enabling reduced power loss. Development of this SiC product have been partially supported by Japan’s New Energy and Industrial Technology Development Organization (NEDO).
Original – Mitsubishi Electric
-
STMicroelectronics and Sanan Optoelectronics announced that they have signed an agreement to create a new 200mm silicon carbide device manufacturing JV in Chongqing, China. The new SiC fab is targeting to start production in Q4 2025 and full buildout is anticipated in 2028, supporting the rising demand in China for car electrification as well as for industrial power and energy applications. In parallel, Sanan Optoelectronics will build and operate separately a new 200mm SiC substrate manufacturing facility to fulfill the JV’s needs, using its own SiC substrate process.
The JV will make SiC devices exclusively for STMicroelectronics, using ST proprietary SiC manufacturing process technology, and serve as a dedicated foundry to ST to support the demand of its Chinese customers.
The total amount for the full buildout of the JV is expected to be about $3.2 billion, including capital expenditures of about $2.4 billion over the next 5 years, which will be financed by contributions from STMicroelectronics and Sanan Optoelectronics, local government support, and loans to the JV.
“China is moving fast towards electrification in Automotive and Industrial and this is a market where ST is already well-established with many engaged customer programs. Creating a dedicated foundry with a key local partner is the most efficient way to serve the rising demand of our Chinese customers. The combination of Sanan Optoelectronics’ future 200mm substrate manufacturing facility with the front-end JV and ST’s existing back-end facility in Shenzhen, China will enable ST to offer our Chinese customers a fully vertically integrated SiC value chain,” said Jean-Marc Chery, President and CEO of STMicroelectronics. “It is an important step to further scale up our global SiC manufacturing operations, coming in addition to our continuing significant investments in Italy and Singapore. This JV is expected to be one of the enablers of the opportunity we see to reach $5B+ SiC revenues by 2030. This initiative is consistent with ST 2025-27 $20B+ revenue ambition and the associated financial model, previously communicated to the financial markets.”
“The establishment of this joint venture will be a major driving force for the wide adoption of SiC devices on the Chinese market,” said Simon Lin, CEO of Sanan Optoelectronics. “Being an international, well-known, high quality SiC foundry service company, Sanan will also supply its SiC substrate to this new joint venture, by building a dedicated new SiC substrate factory. This is an important step for Sanan Optoelectronics’ ambitions as a SiC foundry. With this new Joint Venture and the new SiC substrate capacity expansion, we are confident that we will continue to take the lead in the SiC foundry market.” The completion of the project is subject to regulatory approvals.
Original – STMicroelectronics
-
Nidec Corporation and Renesas Electronics Corporation have agreed to join forces on the development of semiconductor solutions for a next-generation E-Axle (X-in-1 system) that integrates an EV drive motor and power electronics for electric vehicles (EVs).
Today’s EVs are increasingly adopting the 3-in-1 unit called E-Axle, which integrates a motor, inverter, and gearbox (reduction gear). To realize high-performance and efficiency as well as smaller size, light weight and lower cost, and to accelerate vehicle development, EVs are also integrating power electronics controls such as DC-DC converters and on-board chargers (OBCs). EV manufacturers in advanced markets such as China have developed an X-in-1 platform that integrates multiple functions, accelerating the adoption in many vehicle models.
As X-in-1 integrates multiple functions and increases in complexity, maintaining a high-level of quality in vehicles becomes challenging. Thus, developing preventive safety technologies such as diagnostic functions and failure prediction is crucial for ensuring safety and security in vehicles. To address this challenge, the two companies agreed to combine Nidec’s motor technology and Renesas’ semiconductor technology to jointly develop a highly reliable and high-performance proof of concept (PoC) for the X-in-1 system. The PoC is designed to support the industry’s highest performance and efficiency as well as smaller size, light weight and lower cost for the X-in-1 system.
The companies plan to launch the first PoC by the end of 2023, which will feature a 6-in-1 system with a DC-DC converter, OBC, and power distribution unit (PDU) as well as a motor, inverter, and gearbox. As a second phase in 2024, Nidec and Renesas plan to develop a highly integrated X-in-1 PoC that incorporates a battery management system (BMS) along with other components. The first PoC will include power devices based on SiC (silicon carbide), and the second PoC will replace the DC-DC and OBC power devices with GaN (gallium nitride), offering excellent performance in high-frequency operation, to further reduce size and cost.
Building on the PoC developed through this collaboration, Nidec plans to rapidly productize E-Axle systems to add to its portfolio and ramp up to mass production to lead the E-Axle market. Renesas plans to develop and deliver turnkey solutions for increasingly complex X-in-1 systems by expanding the jointly developed PoC for E-Axle reference designs.
Original – Renesas Electronics
-
Mitsubishi Electric Corporation announced that it has developed a new structure for a silicon carbide metal-oxide-semiconductor field-effect transistor (SiC-MOSFET) embedded with a Schottky barrier diode (SBD), which the company has applied in a 3.3 kV full SiC power module, the FMF 800 DC -66 BEW for large industrial equipment such as railways and DC power systems. Samples began shipping on May 31. The chip’s new structure is expected to help downsize railway traction systems, etc. as well as make them more energy efficient, and contribute to carbon neutrality through the increased adoption of DC power transmission.
SiC power semiconductors are attracting attention with their capacity to significantly reduce power loss. Mitsubishi Electric, which commercialized SiC power modules equipped with SiC-MOSFETs and SiC-SBDs in 2010, has adopted SiC power semiconductors for a variety of inverter systems, including air conditioners and railways.
The chip integrated with a SiC-MOSFET and a SiC-SBD can be mounted on a module more compactly compared to the conventional method of using separate chips, thus enabling smaller modules, larger capacity, and lower switching loss. It is expected to be widely used in large industrial equipment such as railways and electric power systems. Until now, the practical application of power modules with SBD-embedded SiC-MOSFETs has been difficult due to their relatively low surge-current capability, which results in the thermal destruction of the chips during surge-current events because surge currents in connected circuits concentrate only in specific chips.
Mitsubishi Electric has now developed the world’s first mechanism by which surge current concentrates on a specific chip in a parallel-connected chip structure inside a power module, and a new chip structure in which all chips start energizing simultaneously so that surge current is distributed throughout each chip. As a result, the power module’s surge-current capacity has been improved by a factor of five or more compared to the company’s existing technology, which is equal to or greater than that of conventional Si power modules, thus enabling the application of an SBD-embedded SiC-MOSFET in a power module.
Original – Mitsubishi Electric
-
Vitesco Technologies and onsemi announced a 10-year long-term supply agreement worth $1.9 billion (€1.75 billion) for silicon carbide (SiC) products to enable Vitesco Technologies’ ramp in electrification technologies. Vitesco Technologies, a leading international manufacturer of modern drive technologies and electrification solutions, is providing an investment of $250 million (€230 million) to onsemi for new equipment for SiC boule growth, wafer production and epitaxy to secure access to SiC capacity.
The equipment will be used to produce SiC wafers to support Vitesco Technologies’ growing SiC demand. In parallel, onsemi, a leader in intelligent power and sensing technologies, will continue to invest substantially into end-to-end SiC supply chain.
In addition, Vitesco Technologies and onsemi will collaborate on optimized customer solutions for Vitesco Technologies. onsemi’s highly efficient EliteSiC MOSFETs will be used by Vitesco Technologies to execute the recent orders as well as future projects for traction inverters and electric vehicle drives.
SiC semiconductors are a pivotal technology for electrification enabling highly efficient power electronics leading to reduced charging times and longer range for electric cars. Especially at high voltage levels such as 800 V, SiC inverters are more efficient than silicon 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.
Original – Vitesco Technologies
-
Magnachip Semiconductor Corporation announced that the Company is separating its display and power businesses into separate entities, following approval by its board of directors and strategic review committee.
YJ Kim, Magnachip’s chief executive officer commented, “This strategic separation represents a significant milestone for Magnachip and underscores the Company’s commitment to unlocking long-term value for our shareholders. The internal separation is aimed at enhancing transparency, accountability and flexibility in business. By establishing distinct entities, we believe our investors will be able to better evaluate the financial performance of each business and their respective contributions. Furthermore, this strategic move will allow each entity to allocate its resources, both financial and technical, more effectively to the specific needs of its customers.”
YJ Kim continued, “Magnachip remains dedicated to delivering innovative solutions and exceptional customer experiences in both the display and power sectors, and we are confident that this separation will strengthen our ability to achieve these objectives by enhancing each business’s agility and focus.”
The Company plans to effectuate the internal separation (the “Internal Split-Off”) by establishing a new subsidiary (“NewCo”) under Magnachip Semiconductor, Ltd. (“Magnachip Korea”), the Company’s operating subsidiary. As part of the transaction, all assets and liabilities of the display business will be contributed to NewCo in exchange for equity. Once the Internal Split-Off is completed, Magnachip Korea and NewCo will both be separate operating companies, with NewCo being a wholly owned subsidiary of Magnachip Korea. The Company’s Gumi fabrication facility will remain with Magnachip Korea as an integral part of its power business.
Post-separation, the board of directors of Magnachip will continue to oversee both operating entities, ensuring cohesive governance, while YJ Kim and the executive management team will manage their business and operations. Each of Magnachip Korea and NewCo will remain indirect wholly owned subsidiaries of Magnachip, and the Internal Split-Off is not expected to have any material impact on the Company’s financial reporting or consolidated financial statements.
The Internal Split-Off is expected to be completed in the fourth quarter of 2023.
Original – Magnachip Semiconductor
-
Navitas Semiconductor announced the first in a series of strategic manufacturing investments, to increase control, reduce costs and enhance revenue capacity for its GeneSiC silicon carbide (SiC) power semiconductors.
An initial $20 million investment enables a three-reactor SiC epi-growth facility at the company’s Torrance, CA headquarters. Adding a SiC epitaxial (or “epi”) layer onto a raw SiC wafer is the first step in manufacturing individual SiC power devices. The first AIXTRON G10-SiC epitaxy reactor, with 6” and 8” wafer capability, is expected to be fully qualified and in production in 2024. Navitas views the epi-growth services to be provided by its new facility as a critical process step that could support up to an additional $200 million in annual production. The company expects to continue the use of third-party vendors for additional epi-growth, wafer fabrication and assembly operations.
“We are proud that an important technology innovator such as Navitas chose our new G10-SiC to further accelerate the adoption of SiC in the growing market for energy efficient power devices. This is especially significant as AIXTRON and Navitas are both firm believers and pioneers in the unstoppable advance of GaN and SiC over legacy silicon. It is through partnerships like ours, where highly innovative companies work together, that this important transition can be realized,” says Dr. Felix Grawert, CEO and President of AIXTRON SE.
“Adding a high-quality SiC epi-layer onto a raw SiC wafer is a critical process step prior to individual device manufacturing, and adding the AIXTRON in-house epi capability to existing subcontract process flows expands available capacity, lowers finished wafer cost, increases quality and reduces cycle times”, said Dan Kinzer, Navitas COO / CTO and co-founder. “The development and manufacturing business partnership with Aixtron includes ongoing technical and co-development support.”
Navitas’ investment in internal epi capacity is one of several initiatives in support of the company’s recently-announced $760M customer pipeline of estimated potential future business, based on expressed customer interest for qualified programs. While the conversion of this pipeline into orders or shipments depends on many factors in addition to possessing available capacity, the company expects its epi capacity expansion will provide a favorable return on investment under most anticipated planning scenarios.
Navitas recently completed an $80 million follow-on common stock offering and plans to use proceeds from the offering for strategic manufacturing investments, among other possible uses, including working capital and general corporate purposes.
Original – Navitas Semiconductor
-
Coherent Corp. and Mitsubishi Electric Corporation have signed a memorandum of understanding (MOU) to collaborate on a program to scale manufacturing of SiC power electronics on a 200 mm technology platform.
The market for electric vehicles is expanding worldwide and is just one of several emerging applications driving the exponential growth in SiC power devices, which have lower energy losses, higher operating temperatures, and higher switching speeds compared with power devices based on silicon. The high efficiency of SiC power devices is expected to be a significant contributor to global decarbonization and the green transformation.
To meet the rapidly growing demand, Mitsubishi Electric announced an investment of approximately 260 billion yen in the five-year period ending March 2026. A major portion of the investment, approximately 100 billion yen, will be used to construct a new plant for SiC power devices, based on a 200 mm technology platform, and enhance related production facilities. Under the MOU, Coherent will develop a supply of 200 mm n-type 4H SiC substrates for Mitsubishi Electric’s future SiC power devices manufactured at the new facility.
“We are excited to build on our relationship with Mitsubishi Electric, a pioneer in SiC power devices and a global market leader in SiC power modules for high-speed trains, including the famous Shinkansen in Japan,” said Sohail Khan, Executive Vice President, New Ventures & Wide-Bandgap Electronics Technologies at Coherent. “We have a long track record of supplying SiC substrates to Mitsubishi Electric and are looking forward to expanding our relationship with them to scale their new 200 mm SiC platform.”
“Coherent has been for many years a reliable supplier of high-quality 150 mm SiC wafer substrates to Mitsubishi Electric,” said Masayoshi Takemi, Executive Officer, Group President, Semiconductor & Device at Mitsubishi Electric. “We are delighted to enter into this close partnership with Coherent to scale our respective SiC manufacturing platforms to 200 mm.”
Coherent has decades of experience in the development of SiC materials. The company demonstrated the world’s first 200 mm conductive substrates in 2015. In 2019, Coherent began to supply 200 mm SiC substrates under REACTION, a Horizon 2020 four-year program funded by the European Commission.
Over the years, Mitsubishi Electric has led the SiC power module markets for high-speed trains, high-voltage industrial applications, and home appliances. Mitsubishi Electric made history by launching the world’s first SiC power modules for air conditioners in 2010, and became the first supplier of a full SiC power module for Shinkansen high-speed trains in 2015. Mitsubishi Electric has also built extensive expertise by serving customers’ needs for high performance and high reliability through its outstanding techniques of processing and screening, as well as many other facets of developing and manufacturing SiC power modules.
Power electronics based on SiC have demonstrated their potential to have a highly beneficial impact on the environment via significant reductions in carbon dioxide emissions. Through the rapidly growing demand for SiC power devices, Coherent and Mitsubishi Electric will accelerate their contribution to sustainable energy consumption and the decarbonization of society.
Original – Coherent
