tag: gallium nitride

Research Bits: Oct. 29
By Jesse Allen - 29 Oct, 2024 - Comments: 0

Micro-LED DUV maskless lithography Researchers from the University of Science and Technology of China, Anhui GaN Semiconductor, and Wuhan University developed a vertically integrated micro-LED array for deep ultraviolet (DUV) maskless photolithography. The team fabricated a DUV display integrated chip with 564 pixels-per-inch density that uses a three-dimensional vertically integrated devic... » read more

New Materials Are in High Demand
By Bryon Moyer - 19 Sep, 2024 - Comments: 0

Materials suppliers are responding to the intense pressures to improve power, performance, scaling, and cost issues, which follows a long timeline from synthesis to development and high volume manufacturing in fabs. The advances in machine learning help present a wide field of candidates, which engineers then narrow to potential use. When building standard logic semiconductor chips, the prim... » read more

Research Bits: Aug. 27
By Jesse Allen - 27 Aug, 2024 - Comments: 0

Ammonia-free GaN Researchers from Nagoya University discovered a way to grow gallium nitride (GaN) semiconductors without using ammonia. The process is both more environmentally friendly and allows for high-quality growth of crystals at a lower cost. Metal organic chemical vapor deposition (MOCVD) is the most common technique for GaN production, which uses ammonia (NH3) gas as the source of... » read more

Driving Cost Lower and Power Higher With GaN
By Anne Meixner - 06 Aug, 2024 - Comments: 0

Gallium nitride is starting to make broader inroads in the lower-end of the high-voltage, wide-bandgap power FET market, where silicon carbide has been the technology of choice. This shift is driven by lower costs and processes that are more compatible with bulk silicon. Efficiency, power density (size), and cost are the three major concerns in power electronics, and GaN can meet all three c... » read more

Easing EV Range Anxiety Through Faster Charging
By Ann Mutschler - 11 Jul, 2024 - Comments: 0

The automotive industry is developing new ways to boost the range of electric vehicles and the speed at which they are charged, overcoming buyer hesitation that has limited the total percentage of EVs to 18% of vehicles being sold.[1] Work is underway to improve how batteries are engineered and manufactured, and how they are managed while they are in use or being charged. This extends well b... » read more

Research Bits: June 18
By Jesse Allen - 18 Jun, 2024 - Comments: 0

Gallium nitride can take the heat Researchers from Massachusetts Institute of Technology (MIT), the UAE's Technology Innovation Institute, Ohio State University, Rice University, and Bangladesh University of Engineering and Technology investigated the performance of ohmic contacts in a gallium nitride (GaN) device at extremely high temperatures, such as those that would be required for devices... » read more

Liquid Cooling And GaN: A Winning Combination
By Paul Wiener - 06 Jun, 2024 - Comments: 0

Data centers are facing an unprecedented transformation due to the surge in generative AI and other emerging technologies. A single ChatGPT session consumes 50 to 100 times more energy than a comparable Google search, escalating data center rack power requirements towards 200 kW or more, presenting serious challenges for operators. Cooling, in fact, takes up about 40% of the power requireme... » read more

GaN Devices: Properties and Performance At Extremely High Temperatures
By Technical Paper Link - 28 May, 2024 - Comments: 0

A new technical paper titled "High temperature stability of regrown and alloyed Ohmic contacts to AlGaN/GaN heterostructure up to 500 °C" was published by researchers at MIT, Technology Innovation Institute, Ohio State University, Rice University and Bangladesh University of Engineering and Technology. Abstract "This Letter reports the stability of regrown and alloyed Ohmic contacts to A... » read more

Enabling New Applications With SiC IGBT And GaN HEMT For Power Module Design
By Shela Aboud - 18 Apr, 2024 - Comments: 0

The need to mitigate climate change is driving a need to electrify our infrastructure, vehicles, and appliances, which can then be charged and powered by renewable energy sources. The most visible and impactful electrification is now under way for electric vehicles (EVs). Beyond the transition to electric engines, several new features and technologies are driving the electrification of vehicles... » read more

What’s Next For Power Electronics? Beyond Silicon
By Emily Yan - 29 Feb, 2024 - Comments: 0

For more than half a century, silicon has been the bedrock of power electronics. Yet as silicon meets its physical limitations in higher-power, higher-temperature applications, the industry’s relentless pursuit of more efficient power systems has ushered in the wide bandgap (WBG) semiconductors era. The global WBG semiconductors market reached $1.6 billion in 2022, with an estimated CAGR of ... » read more

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