• Qromis Brings a Revolutionary Substrate Solution for Large-Diameter GaN Epi and Device Wafers

    Qromis Brings a Revolutionary Substrate Solution for Large-Diameter GaN Epi and Device Wafers

    3 Min Read

    Qromis, Inc. brings a revolutionary, high performance substrate solution for large-diameter GaN epi and device wafers. Rather than solving incremental scale and performance challenges of conventional substrates for WBG semiconductors, QST™ (Qromis Substrate Technology) has been developed and validated as a disruptive solution, with cross-functional optimization.

    In this approach, the key properties of substrate material such as stress, lattice mismatch, thermal stability and shape control are engineered independently for the best fit with GaN epitaxial and device layers, as well as with different device architectures and performance targets. QST™ materials layers are integrated together in the conventional semiconductor fab with a simple manufacturing flow.

    The resulting large diameter substrates (6-inch, 8-inch, 12-inch or beyond) are capable of supporting from a few to tens of microns of high-quality GaN epitaxy, from which unique, high performance and low cost GaN device structures are fabricated.

    Qromis is designing reference devices for device manufacturers to demonstrate the benefits of the groundbreaking QST™ technology. These devices exploit key advantages of QST™ over other substrate solutions:

    – High quality and stress-free GaN,
    – Ability to deposit thick, bulk-like GaN epi layers on large diameter substrates,
    – Low defectivity, eliminating a major limitation to performance and scalability.

    With these distinct features, designers can now break free from the current technological limitations of GaN process technologies and develop advanced device architectures for lateral and vertical device designs of light emitters, switches, rectifiers, as well as monolithic and integrated circuits.

    Qromis, Inc., established in March 2015 and located in Silicon Valley, California, is a privately held fabless technology innovator focusing on energy efficient and high performance wide bandgap (WBG) semiconductor materials and device solutions which dramatically reduce global energy use and consumption. The Company is poised to become one of the premier players in the rapidly growing, multi-billion dollar WBG industry with its disruptive and validated solutions in substrate and device technologies, which enable an unmatched cost, performance, and application scale. Markets served include power electronics, light emitting diodes (LEDs), advanced displays, and RF electronics, and other emerging high performance and energy efficient applications.

    As a fabless company, Qromis is driving the commercialization of its unique solutions in conjunction with its foundry network. The Company and its foundry partner offer WBG device foundry services, as well as access to advanced and novel process technology platforms, for its customers and partners.

    To learn more about Qromis and its substrate technology, join the International Conference on Compound Semiconductor Manufacturing Technology which takes place May 20-23, 2024 in Tucson, Arizona.

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  • Power Integrations to Acquire Assets of Odyssey Semiconductor Technologies

    Power Integrations to Acquire Assets of Odyssey Semiconductor Technologies

    2 Min Read

    Power Integrations announced an agreement to acquire the assets of Odyssey Semiconductor Technologies, a developer of vertical gallium-nitride (GaN) transistor technology. The transaction is expected to close in July 2024, after which all key Odyssey employees are expected to join Power Integrations’ technology organization.

    The acquisition supports the company’s ongoing development roadmap for its proprietary PowiGaN™ technology, which is featured in many of the company’s product families including InnoSwitch™ ICs, HiperPFS™-5 power-factor-correction ICs and the recently launched InnoMux™-2 family of single-stage, multiple-output ICs. The company introduced 900- and 1250-volt versions of PowiGaN technology and products in 2023.

    Commented Dr. Radu Barsan, Power Integrations’ vice president of technology: “Power Integrations has been at the forefront of GaN development and commercialization since we began shipping products with PowiGaN technology in 2018. We are executing on an ambitious roadmap that includes driving toward cost parity with silicon MOSFETs and expanding the voltage and power capabilities of PowiGaN.

    Our goal is to commercialize a cost-effective high-current and high-voltage GaN technology to support higher-power applications currently served by silicon carbide (SiC), at a much lower cost and higher performance enabled by the fundamental material advantages of GaN over SiC. The experience of the Odyssey team in high-current vertical GaN will augment and accelerate these efforts, and we are delighted to add them to our team.”

    Added Dr. Richard Brown, Odyssey co-founder and CEO: “The Odyssey team and I are excited to join Power Integrations in accelerating their GaN technology roadmap. As the first company to commercialize high-voltage GaN, Power Integrations continues to lead the industry in driving the technology forward in terms of cost, voltage and current, as well as the design of system-level products that take full advantage of the capabilities of GaN.”

    Original – Power Integrations

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  • CNIPA Validates GaN Patent from EPC

    CNIPA Validates GaN Patent from EPC

    2 Min Read

    Efficient Power Conversion Corp (“EPC”) announced that the China National Intellectual Property Administration (“CNIPA”) has validated the claims of EPC patent titled “Compensated gate MISFET and method for fabricating the same” (Chinese Patent No. ZL201080015425.X) for enhancement-mode GaN semiconductor devices.

    The decision on April 30, 2024 follows an April 2, 2024 announcement from the CNIPA that confirmed the validity of key claims of EPC’s Chinese patent titled “Enhancement mode GaN HEMT device and method for fabricating the same” (Chinese Patent No. ZL201080015388.2). Both EPC patents were challenged by Innoscience (Suzhou) Technology Co., Ltd. (“Innoscience”). 

    Compared with traditional silicon-based power devices, GaN technology represents a transformational leap with higher efficiency, faster switching speeds and smaller size. GaN devices are used in artificial intelligence servers, self-driving vehicles, next-generation rapid chargers, drones, e-bikes, and humanoid robots, among other applications. Chinese Patent No. ZL201080015425.X covers the fundamental design and configuration of EPC’s proprietary enhancement mode GaN field effect transistors (FETs) with reduced gate leakage. Most industry participants employ the GaN gate technology covered by this patent.

    “These are two of the foundational patents supporting our broad portfolio of innovations, and we are pleased that the CNIPA has again confirmed the validity of our valuable intellectual property,” said Alex Lidow, CEO and Co-founder of EPC. “Quick, fair and efficient decisions such as these reinforce the confidence in legal systems that companies need to operate globally.”

    In May 2023, EPC filed complaints in the U.S. federal court in Los Angeles and in the U.S. International Trade Commission, asserting that Innoscience (Zhuhai) Technology Co., Ltd. and its affiliates infringe patents of its foundational patent portfolio, which include the U.S. counterparts of EPC’s Chinese Patent Nos. ZL201080015425.X and ZL201080015388.2. In response, Innoscience had petitioned the CNIPA to invalidate the two Chinese patents.

    Original – Efficient Power Conversion

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  • Transphorm and Weltrend Semiconductor Announced Availability of Two New GaN System-in-Packages

    Transphorm and Weltrend Semiconductor Announced Availability of Two New GaN System-in-Packages

    3 Min Read

    Transphorm, Inc. and the global leader in adapter USB Power Delivery (PD) Controller Integrated Circuits (IC) Weltrend Semiconductor Inc. announced availability of two new GaN System-in-Packages (SiPs). When combined with Weltrend’s flagship GaN SiP announced last year, the new devices establish the first SiP product family based on Transphorm’s SuperGaN® platform.

    The new SiPs—WT7162RHUG24B and WT7162RHUG24C—integrate Weltrend’s high frequency multi-mode (QR/Valley Switching) Flyback PWM controller with Transphorm’s 150 mΩ and 480 mΩ SuperGaN FETs respectively. Like their 240 mΩ predecessor (WT7162RHUG24A), the devices pair with USB PD or programmable power adapter controllers to provide a total adapter solution.

    Notably, they also offer several innovative features including the UHV valley tracking charge mode, adaptive OCP compensation, and adaptive green mode control among others that allow customers to design high quality power supplies faster and with fewer components using the simplest design approach.

    “When we launched our first GaN SiP last year, it was an important milestone in our company’s evolution. It demonstrated a new GTM strategy for the AC-to-DC power market,” said Wayne Lo, Vice President of Marketing, Weltrend. “Today’s news confirms we’re continuing to serve that space with a wider selection of devices designed to support a wider assortment of product power levels. A total packaged solution with Transphorm’s SuperGaN platform delivers design simplicity with unparalleled performance for devices now ranging from low 30-watt USB-C PD power adapters through to nearly 200-watt chargers, a unique Transphorm GaN capability.”

    End product manufacturers seek ways to develop new adapters with a reduced bill-of-materials (BOM) that offer versatility, fast charging, and higher power outputs. Additionally, in many cases they seek to deliver “one-size-fits-all” chargers with multiple ports and/or multiple types of connections. All of this in smaller, lighter weight form factor.

    Some key advantages of Transphorm’s normally-off d-mode SuperGaN platform include best-in-class robustness (+/- 20 V gate margin with a 4 V noise immunity) and reliability (< 0.05 FIT) with the ability to increase power density by 50% over silicon. Weltrend’s elegant SiP designs harness those advantages along with its own innovative technologies to create a near plug-and-play solution that speeds design while reducing form factor size.

    “SiPs are an important device option when considering the needs of adapter and charger manufacturers,” said Tushar Dhayagude, Vice President of Worldwide Sales and FAE, Transphorm. “These systems require effective power conversion that, while simple to use with integrated functionality, also minimize learning curves to ensure quick design in. The first device released validated the performance and versatility of a SuperGaN SiP. The new devices announced today validate both our companies’ deepening commitment to arming customers with choice.”

    Key Specifications
     WT7162RHUG24AWT7162RHUG24B (new)WT7162RHUG24C (new)
    Rds(on)240 mΩ150 mΩ480 mΩ
    Vds min650 V
    Power Efficiency> 93%
    Power Density26 w/in3
    Max Frequency180 kHz
    Wide Output
    Voltage Operation
    USB-C PD 3.0
    PPS 3.3V~21V
    Package24-pin 8×8 QFN
    Key Features
    Adjustable GaN FET gate slew rate controlBalances out efficiency and EMI compliance
    External VDD linear regulator circuit not required
    (700 V ultra HV start-up current pulled directly from AC Line voltage)
    Reduces component count
    Reduced package inductanceMaximizes chip performance
    Fits in a standard 8×8 QFN FFAllows for low profile/small system footprint

    Original – Transphorm

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  • Virtual Forest Adopts Navitas Semiconductor's GaNFast™ in a Solar-Powered Irrigation Pump

    Virtual Forest Adopts Navitas Semiconductor’s GaNFast™ in a Solar-Powered Irrigation Pump

    2 Min Read

    Navitas Semiconductor announced that Virtual Forest, one of India’s leading electronics design companies specializing in motor control and human interface technologies for consumer appliances, fluid movement and mobility, has adopted its GaNFast™ power integrated circuits (IC) technology for a zero-emission, powerful 3 hp (2,250W) solar-powered irrigation pump.

    For many farmers worldwide, irrigating remote crops requires powerful pumps to lift water from rivers and streams up to field-level, with the majority powered by polluting and noisy diesel generators or expensive, lossy long-distance electrical cables. The Virtual Forest solar pump with maximum power point tracking (MPPT) operates in conjunction with solar panel and energy storage to provide robust, energy-independent and pollution-free performance at the point of use.

    The 3 hp (2,250W) pump is remotely accessed via quad-band IoT with low power consumption. It can raise over 50 gallons-per-minute of water to a height of over 90 feet, enough to water 3 acres of farmland, and help to produce 10 tonnes of wheat. Further, the IoT enabled solar pump ensures optimal water usage through intelligent analytics, therefore minimizing ground water utilization.

    Navitas GaNSense™ half-bridge power ICs monolithically by integrating two GaN power FETs with GaN drivers, level-shifters, protection features and high-efficiency loss-less current sensing. High-efficiency NV6269 half-bridge ICs, in easy-to-use 8×10 mm QFN packages are used in a 3-phase motor inverter, with 3x-5x energy savings vs legacy silicon IGBTs.

    “The $450 million solar-pump market in India is expected to reach $1.5 Bn by 2026, calling for a solar revolution on Indian fields,” said Virtual Forest’s CEO, Omer Basith, adding “Reliable, off-grid systems are critical to overcome food insecurity and achieve energy efficiency. Leveraging Navitas’ high-power, efficient GaNSense™ half-bridge, we seek to deliver a robust solution to the market. We are nurturing our dream to drive gigatons of reduction in carbon emissions, thereby making the world a greener place to live in. Hence, our name — Virtual Forest.”

    “The design team at Virtual Forest adopted the GaNSense half-bridges very quickly, for a fast time-to-market,” said Alessandro Squeri, Navitas’ Senior Sales Director. “With GaNSense, ‘easy-to-use feature, Virtual Forest comes into the partnership with high efficiency, low component count and a robust design for tough environments.”

    Original – Navitas Semiconductor

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  • Chicony Power Technology Honors Infineon Technologies as its 2023 “GaN Strategic Partner of the Year”

    Chicony Power Technology Honors Infineon Technologies as its 2023 “GaN Strategic Partner of the Year”

    2 Min Read

    Chicony Power Technology, a worldwide leading manufacturer of power supplies and a pioneer in power electronics, has announced the winners of its Annual Partner Awards, honoring Infineon Technologies AG as its 2023 “GaN Strategic Partner of the Year”.

    Infineon has been recognized by Chicony Power as its top partner for gallium nitride (GaN)-based power supplies, including notebook adapters, as well as ICT applications in gaming, storage and servers. This acknowledgment is the result of Infineon’s high standards for product selection, application expertise, high reliability and cost-effectiveness. 

    GaN stands out as one of the most crucial technologies which are essential for improving the efficiency of power supplies and reducing their product size. Pooling Infineon’s leading GaN expertise and Chicony Power’s remarkable capabilities in power supply system design, the win-win collaboration has helped push the boundaries of innovation and further strengthened both companies’ leading positions in energy-efficient power solutions. As of today, the GaN adoption rate in Chicony Power’s high-watt adapters has reached 20 percent, and this rate is rapidly increasing.

    “Unrivalled R&D resources, a comprehensive application understanding and a large number of customer projects let Infineon continuously drive its roadmap for becoming a leading GaN Powerhouse,” said Adam White, Division President Power & Sensor Systems at Infineon Technologies. “The Strategic Partner of the Year award from Chicony Power is a great honor for us. We see this as part of our common mission to drive decarbonization and digitalization together.”

    “We’re pleased to honor Infineon, which has played a pivotal role in driving customer success throughout 2023, as our GaN Strategic Partner of the Year,” said Peter Tseng, President of Chicony Power Technology. “Our Vision is to be a global pioneer in the implementation of new technology that enhances power supply efficiency, reduces the carbon footprint of power supplies and helps create a greener world. We would like our Annual Partner Awards to encourage Infineon and all other partners to maintain the momentum in jointly promoting GaN technology in the market alongside Chicony Power, making the power industry greener and cleaner.” 

    Original – Infineon Technologies

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  • Teledyne e2v HiRel Shows Innovative 650V GaN Power Module

    Teledyne e2v HiRel Shows Innovative 650V GaN Power Module

    2 Min Read

    Teledyne e2v HiRel Electronics announced the release of the TDGM650LS60, the first product in its innovative new 650V power module family. This new module utilizes a Teledyne high voltage Gallium Nitride (GaN) transistor and integrates an isolated driver in one package.

    Designed to serve as a load switch or solid-state switch, the TDGM650LS60 offers unparalleled performance and versatility. With the driver providing 5KV isolation and a GaN transistor boasting a minimum breakdown voltage of 650V, this module ensures robust and dependable operation in diverse environments.

    One of the standout features of the TDGM650LS60 is its lightning-fast switching time coupled with the absence of moving parts. This unique combination not only enhances operational efficiency but also significantly elevates the reliability of the device. As a result, the TDGM650LS60 is ideally suited for high-reliability applications, including but not limited to Space, Avionics, and Military sectors.

    “This launch marks a significant milestone in Teledyne’s commitment to innovation” said Mont Taylor, Vice President and Business Development Manager at Teledyne e2v HiRel. “The TDGM650LS60 represents the culmination of our dedication to pushing the boundaries of technology, offering our customers performance, reliability, and versatility in their applications.”

    Original – Teledyne e2v HiRel Electronics

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  • Innoscience responds to Infineon's Lawsuit

    Innoscience Responds to Infineon’s Lawsuit

    2 Min Read

    Innoscience Technology firmly denounces the accusations made by Infineon Technologies Austria AG in a recent patent infringement lawsuit against three Innoscience entities. Infineon filed this lawsuit in a U.S. district court in California on March 13, 2024, and asserted a single U.S. patent.

    Innoscience denies Infineon’s allegations of patent infringement as well as the validity of the Infineon patent. Innoscience will vigorously defend itself and is confident that it will prevail. Infineon’s intention with this litigation is also in question, as it has asserted a patent that has significant defects. Particularly, even a cursory review of Infineon’s patent portfolio reveals that the alleged “invention” of the asserted patent was already disclosed in Infineon’s own earlier prior art patents, raising concerns that it may have committed fraud on the United States Patent and Trademark Office, for not making proper disclosures during the prosecution of the asserted defective patent.

    In addition, contrary to Infineon’s wrong characterization that the claims of the asserted defective patent “cover core aspects of GaN power semiconductors,” the lawsuit only concerns a small fraction of Innoscience’s packaged high-voltage (650V-700V) GaN transistors and does not affect the vast majority of its other products (including unpackaged transistors and wafers, low-voltage transistors, and certain packaged transistors).

    Therefore, the lawsuit should have little to no effect on Innoscience’s current ability to make, use, sell, offer to sell, or import into the United States its products for customers. Innoscience respects others’ valid IP rights and is also dedicated to developing its own IP portfolio. Despite being an eight-year old company, Innoscience has filed more than 800 patent applications globally. Innoscience’s R&D team boasts 500+ technical experts across the world.

    Through continuing innovation, Innoscience has produced GaN devices to power a diverse range of products, from power delivery chargers to data centers and smartphones, showcasing its ability to align with evolving application demands and adapt to diverse customer specifications.

    Moreover, Innoscience has always sought a cooperative and mutually beneficial approach to develop the global GaN industry, even among others in the same industry. Innoscience intends to prevail in this pending lawsuit and is determined to remain a trusted and reliable partner for its customers and contribute to their success by offering top-notch and versatile products and solutions based on Innoscience’s home-grown, superior technologies.

    Original – Innoscience Technology

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  • EPC Announced Availability of a 3-phase BLDC Motor Drive Inverter Using EPC2619 eGaN® FET

    EPC Announced Availability of a 3-phase BLDC Motor Drive Inverter Using EPC2619 eGaN® FET

    2 Min Read

    EPC announces the availability of the EPC9193, a 3-phase BLDC motor drive inverter using the EPC2619 eGaN® FET. The EPC9193 operates with a wide input DC voltage ranging from 14 V and 65 V and has two configurations – a standard unit and a high current version:

    • The EPC9193 standard reference design uses a single FET for each switch position and can deliver up to 30 ARMS maximum output current.
    • A high current configuration version of the reference design, the EPC9193HC, uses two paralleled FETs per switch position with the ability to deliver up to 60 Apk (42 ARMS) maximum output current.

    Both versions of the EPC9193 contain all the necessary critical function circuits to support a complete motor drive inverter including gate drivers, regulated auxiliary power rails for housekeeping supplies, voltage, and temperature sense, accurate current sense, and protection functions.  The EPC9193 boards measure just 130 mm x 100 mm (including connector).   

    Major benefits of a GaN-based motor drive are exhibited with these reference design boards, including lower distortion for lower acoustic noise, lower current ripple for reduced magnetic loss, and lower torque ripple for improved precision.  The extremely small size of this inverter allows integration into the motor housing resulting in the lowest EMI, highest density, and lowest weight.

    EPC provides full demonstration kits, which include interface boards that connect the inverter board to the controller board development tool for fast prototyping that reduce design cycle times.

    “GaN-based inverters enhance motor efficiency and lower costs, expensive silicon MOSFET inverters”, said Alex Lidow, CEO of EPC. “This results in smaller, lighter, quieter motors with increased torque, range, and precision.”

    Original – Efficient Power Conversion

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  • Teledyne e2v HiRel Announced Radiation Tolerant RF and Power Products for the New Space Market

    Teledyne e2v HiRel Announced Radiation Tolerant RF and Power Products for the New Space Market

    3 Min Read

    Teledyne e2v HiRel announced the availability of radiation tolerant RF and Power products for the evolving New Space market. Qualified based on the EEE-INST-002 space grade standard, these plastic packaged products are qualified for the harsh environment of space with –55°C to +125°C temperature operating ratings, and are radiation tolerant for use in LEO, MEO, and GEO missions.

    The RF products include several low noise amplifiers (LNA) and are ideal for demanding high-reliability space applications where low noise figure, minimal power consumption, and small footprint are critical to mission success. They are ideally suited for satellite communication systems that are increasing the power of radio signals so utilizing components with minimal noise and distortion help minimizing the degradation of digital signals.

    These LNAs are developed in the radiation tolerant pHEMT technology semiconductor process technology. The monolithic microwave integrated circuit (MMIC) products are available in dual-flat no lead (DFN) plastic over molded SMT packages and are biased over single positive VDD supply voltages, eliminating the need for negative power rail voltages.

    • The TDLNA002093SEP delivers a low noise figure of less than 0.37 dB, IDDQ from 30 mA to 100mA, and exceptional performance from 1 GHz (L-band) to 6 GHz (S-band) frequencies.
    • The TDLNA0430SEP delivers an industry leading low noise figure of less than 0.35 dB, IDDQ of 60mA and exceptional performance from 0.3 GHz (UHF) to 3 GHz (S-band) frequencies.
    • The TDLNA2050SEP delivers an industry leading low noise figure of less than 0.4 dB, IDDQ of 60mA and exceptional performance from 2.0 GHz (S-band) to 5 GHz (C-band) frequencies.

    The Power products offerings include Gallium Nitride (GaN) technology High Electron Mobility Transistors up to 650V, currents up to 90 Amp, high switching frequencies, and low RDSON. These GaN solutions have easy gate-drive requirements and enable high power density designs with four times less space requirements than traditional MOSFETs. The TDG650E60xSP parts are available in extremely small non hermetic packages with either top-side and bottom-side thermal pads and are ideally suited for satellite power supply systems with space production screening.

    “Today we’re announcing our New Space products offering of RF and Power products optimized for space applications,” said Mont Taylor, Vice President and Business Development Manager at Teledyne e2v HiRel. “These LNAs with their ultra low noise figures coupled with the high power density capabilities of GaN transistors, we believe these products will enable system designers with superior solutions for space based satellite communication applications.”

    Original – Teledyne e2v HiRel

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