Rome Semiconductor's GaN Technology Advancements

News from the Future: Rome Semiconductor Unveils Advances in Gallium Nitride Technology at PCIM Europe
Rome Semiconductor is making waves at PCIM Europe with its latest developments in gallium nitride (GaN) technology. Mark Britton, reporting live from the event, caught up with Tim Poulon, F.A.E., to discuss the highlights of Rome's Hauer Liner and the company's plans for further innovation.
According to Tim, this year's focus is on rounding out Rome's total wide bandgap product portfolio, building on last year's introduction of GaN discrete devices and power stage integrated circuits at 150V and 650V. "We're really emphasizing our 650-volt developments, especially in terms of packaging integration and evaluation kit support," he explained.
Rome has been actively working on packaging technology to enhance its GaN discrete devices. The company offers DFN packages measuring 8mm by 8mm, as well as TO leadless packages that enable higher current capabilities. Looking ahead, Rome plans to release topside cooling packages in the near future.
In addition to its work on GaN devices, Rome is also developing controllers for different topologies. A notable example is the company's 250-watt totem pole PFC evaluation kit, which integrates several components from Rome, including super junction MOSFETs, GaN HEMPs, isolated gate drivers, and a dedicated totem pole PFC controller IC.
This comprehensive approach enables the creation of efficient and high-power-density systems. By integrating multiple components into a single package, Rome simplifies AC-DC power supply design. The company's all-in-one system and package units contain a GaN HEMP, control IC, and gate drive unit, making it easier for designers to develop high-performance power supplies.
Rome has also developed evaluation kits that showcase the capabilities of its integrated solutions. For instance, the company's 150-watt and 330-watt AC-DC evaluation kits utilize LLC control technology and PFC control technology, demonstrating the potential for high-efficiency power conversion.
The partnership between Rome Semiconductor and Future Electronics plays a crucial role in the company's power electronics strategy. According to Tim, Future Electronics is a key partner that helps Rome reach customers it might not have otherwise had access to. This collaboration enables business growth for both companies and facilitates the exchange of information about future developments.
As PCIM Europe comes to a close, Rome Semiconductor's advancements in GaN technology are sure to generate excitement among industry professionals. With its focus on integration, packaging innovation, and controller development, Rome is well-positioned to drive progress in the field of power electronics.
About Rome Semiconductor
Rome Semiconductor is a leading provider of innovative semiconductor solutions. With a focus on gallium nitride (GaN) technology, the company develops and manufactures high-performance power devices and integrated circuits that enable efficient and compact power conversion.
About Future Electronics
Future Electronics is a global leader in the distribution of electronic components. The company works closely with suppliers like Rome Semiconductor to provide customers with access to cutting-edge technologies and innovative solutions.
About PCIM Europe
PCIM Europe is one of the world's leading conferences and exhibitions for power electronics, intelligent motion, renewable energy, and energy management. The event brings together industry professionals to discuss the latest trends, technologies, and innovations in the field.


What is Gallium Nitride? Gallium nitride (GaN) is a binary semiconductor compound made of gallium and nitrogen atoms. It is a wide bandgap semiconductor material that has been gaining significant attention in recent years due to its unique properties, which make it an ideal candidate for various high-power and high-frequency applications.
Background Gallium nitride was first synthesized in the early 1960s by scientists at RCA Laboratories. However, it wasn't until the 1990s that significant research and development efforts began to focus on GaN technology. Since then, there has been a rapid advancement in the understanding of GaN's properties and its potential applications.
Properties GaN exhibits several unique properties that make it an attractive material for various applications:
  • Wide bandgap energy (3.4 eV) provides a high breakdown voltage and low leakage current.
  • High electron mobility (1500 cm²/Vs) enables fast switching speeds and high-frequency operation.
  • Thermal stability up to 1000°C makes it suitable for high-power applications.
Applications GaN is being explored for various applications, including:
  • Power electronics (e.g., power supplies, motor drives)
  • Radio frequency (RF) and microwave devices (e.g., amplifiers, switches)
  • Light-emitting diodes (LEDs) and laser diodes
  • High-power and high-frequency transistors
Challenges and Future Directions Despite the significant progress made in GaN technology, several challenges remain to be addressed, including:
  • Scalability and cost-effectiveness of production processes.
  • Reliability and stability of devices over time.
  • Integration with other materials and technologies.


Rome Semiconductor's GaN Technology Advancements

Rome Semiconductor, a leading developer of Gallium Nitride (GaN) technology, has made significant advancements in the field. GaN is a wide bandgap semiconductor material that offers superior performance and efficiency compared to traditional silicon-based technologies.

What is GaN Technology?

GaN technology uses gallium nitride as the semiconductor material instead of silicon. This allows for higher power density, faster switching speeds, and increased efficiency in a smaller form factor. GaN devices are ideal for high-power applications such as electric vehicles, renewable energy systems, and data centers.

Rome Semiconductor's Advancements

  • High-Efficiency GaN Transistors: Rome Semiconductor has developed high-efficiency GaN transistors with record-breaking performance. These transistors achieve an efficiency of over 99% in certain applications, significantly reducing energy losses and increasing overall system performance.
  • Reliability and Durability: The company's GaN devices have demonstrated exceptional reliability and durability, meeting the stringent requirements for high-power industrial and automotive applications.
  • Cost-Effective Manufacturing: Rome Semiconductor has developed a cost-effective manufacturing process that enables mass production of high-quality GaN devices. This reduces costs and increases accessibility to GaN technology.

Applications of GaN Technology

GaN technology has numerous applications across various industries, including:

  • Electric Vehicles: GaN devices are used in on-board chargers and DC-DC converters for efficient power conversion.
  • Renameable Energy Systems: GaN inverters are used to convert DC power from solar panels or wind turbines to AC power for the grid.
  • Data Centers: GaN transistors are used in high-power data center applications such as servers and storage systems.

Conclusion

Rome Semiconductor's advancements in GaN technology have the potential to revolutionize various industries. With its high-efficiency transistors, reliable and durable devices, and cost-effective manufacturing process, Rome Semiconductor is poised to play a leading role in the widespread adoption of GaN technology.



Q1: What is GaN technology and how does it differ from traditional silicon-based technologies? Rome Semiconductor's GaN (Gallium Nitride) technology is a type of power semiconductor device that offers superior performance, efficiency, and reliability compared to traditional silicon-based technologies. GaN devices operate at higher frequencies, have lower losses, and are more compact than their silicon counterparts.
Q2: What specific advancements has Rome Semiconductor made in GaN technology? Rome Semiconductor has developed a proprietary GaN-on-Si (Gallium Nitride on Silicon) process that enables the creation of high-performance, low-cost GaN devices. This process allows for the integration of GaN with silicon, making it possible to leverage existing manufacturing infrastructure and reduce production costs.
Q3: How does Rome Semiconductor's GaN technology improve power conversion efficiency? Rome Semiconductor's GaN devices have lower switching losses and higher frequency operation, resulting in improved power conversion efficiency. This means that less energy is wasted as heat, making the overall system more efficient and reducing the need for cooling systems.
Q4: What are some of the key applications that can benefit from Rome Semiconductor's GaN technology? Rome Semiconductor's GaN technology is well-suited for a variety of high-performance applications, including data center power supplies, electric vehicle charging systems, renewable energy systems, and advanced military and aerospace systems.
Q5: How does Rome Semiconductor's GaN technology address the issue of thermal management? Rome Semiconductor's GaN devices are designed to operate at high temperatures, reducing the need for complex cooling systems. This results in improved reliability and reduced maintenance costs. Additionally, the company's GaN-on-Si process enables the integration of heat sinks and other thermal management features.
Q6: What is the current status of Rome Semiconductor's GaN technology development? Rome Semiconductor has successfully demonstrated its GaN-on-Si process and is currently in the process of scaling up production. The company is working with select customers to bring its GaN technology to market, with plans for widespread adoption in the near future.
Q7: How does Rome Semiconductor's GaN technology compare to other competing technologies? Rome Semiconductor's GaN-on-Si process offers several advantages over competing technologies, including improved performance, lower costs, and easier integration with existing manufacturing infrastructure. The company's proprietary process has been shown to outperform other GaN technologies in key metrics such as power density and efficiency.
Q8: What are some of the challenges that Rome Semiconductor faced during the development of its GaN technology? Rome Semiconductor faced several technical challenges during the development of its GaN-on-Si process, including achieving high-quality crystal growth and optimizing device design for maximum performance. The company also had to overcome manufacturing and scaling challenges to bring its technology to market.
Q9: How does Rome Semiconductor plan to support the growing demand for GaN technology? Rome Semiconductor is investing in expanding its manufacturing capacity and building strategic partnerships with leading companies in key markets. The company is also committed to ongoing research and development, ensuring that it stays at the forefront of GaN technology innovation.
Q10: What does Rome Semiconductor see as the future outlook for GaN technology adoption? Rome Semiconductor believes that GaN technology will play a critical role in enabling next-generation power systems and applications. The company expects widespread adoption of its GaN technology across multiple markets, driving growth and innovation in industries such as renewable energy, data centers, and electric vehicles.




Rank Pioneers/Companies Description
1 Wolfspeed (Cree) A leading provider of GaN-on-SiC technology, offering high-power RF devices and modules.
2 Infineon Technologies Developed a range of GaN-based products, including power modules and discrete devices for industrial and automotive applications.
3 NXP Semiconductors Offers GaN-on-Si technology for RF and microwave applications, including high-power amplifiers and switches.
4 Qorvo Provides a range of GaN-based products for RF and microwave applications, including power amplifiers and switches.
5 MACOM Developed a range of GaN-on-SiC products for high-power RF and microwave applications, including amplifiers and switches.
6 STMicroelectronics Offers GaN-based power modules and discrete devices for industrial and automotive applications.
7 Rohm Semiconductor Developed a range of GaN-based products, including power modules and discrete devices for industrial and automotive applications.
8 Toshiba Electronic Devices & Storage Corporation Provides GaN-based power modules and discrete devices for industrial and automotive applications.
9 UnitedSiC (formerly known as Peregrine Semiconductor) Developed a range of GaN-on-SiC products, including power modules and discrete devices for high-power RF and microwave applications.
10 Navitas Semiconductor Provides GaN-based power ICs for data center, renewable energy, and electric vehicle applications.




Rome Semiconductor's GaN Technology Advancements
Overview
Rome Semiconductor has made significant advancements in Gallium Nitride (GaN) technology, a material that has revolutionized the field of power electronics. GaN's high electron mobility, saturation velocity, and thermal conductivity make it an ideal replacement for traditional Silicon-based devices.
Technical Details
Parameter Description Rome Semiconductor's Achievement
Electron Mobility A measure of how easily electrons move through a material. 1200 cm²/Vs, significantly higher than Silicon's 1400 cm²/Vs
Saturation Velocity The maximum velocity at which electrons can flow through a material. 2.5 x 10^7 cm/s, exceeding Silicon's 1 x 10^7 cm/s
Thermal Conductivity A measure of how efficiently heat is transferred through a material. 1.3 W/cmK, outperforming Silicon's 1.0 W/cmK
Breakdown Voltage The maximum voltage that can be applied to a device before it fails. 650 V, significantly higher than Silicon-based devices
Switching Frequency The rate at which a device can switch on and off. Up to 1 MHz, enabling high-frequency applications
Power Density A measure of how much power a device can handle per unit area. 100 W/mm², allowing for compact and efficient designs
Manufacturing Process
Rome Semiconductor employs a proprietary manufacturing process that includes:
Metal Organic Chemical Vapor Deposition (MOCVD) A technique used to deposit high-quality GaN layers.
Reactive Ion Etching (RIE) A process used to precisely etch GaN structures.
E-Beam Lithography A technique used to create high-resolution patterns on the wafer surface.