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GaN substrate
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Reducing Laser Diode Optical Leakage with Indium Gallium Nitride Waveguides
Sep 23, 2016Institute of High Pressure Physics (IHPP) and TopGaN Ltd, both of Poland, have been jointly developing indium gallium nitride (InGaN) waveguide structures for use in blue laser diodes (LDs) [Grzegorz Muziol et al, Appl. Phys. Express, vol9, ...
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Reducing Misfit Dislocations in Green Semi-Polar Light-Emitting Diodes
Aug 26, 2016University of California Santa Barbara (UCSB) in the USA has used limited-area epitaxy (LAE) on semi-polar gallium nitride (GaN) substrates to reduce misfit dislocation (MD) densities in multiple quantum well (MQW) green light-emitting ...
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Monolithic Band-Engineered Semi-Polar White Light-Emitting Diode
Aug 12, 2016University of California Santa Barbara (UCSB) in the USA has developed a monolithic white light-emitting diode (LED) with blue light produced by electrical pumping, and green/'red' by optical pumping from the blue source [S. J. Kowsz et al, ...
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Chemical Lift-off of Full-Wafer Gallium Nitride with Zinc Oxide Interlayer
Aug 10, 2016Researchers based in UK, France, Australia and the USA have developed a chemical epitaxial lift-off (ELO) technique for full 2-inch-diameter gallium nitride (GaN) grown on sapphire and free-standing substrates [Akhil Rajan et al, J. Phys. ...
Tags: GaN, HVPE, free-standing wafers
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Sodium Flux Route to Free-Standing Gallium Nitride Substrates
Jul 19, 2016Osaka University in Japan has developed a liquid phase epitaxy (LPE) process for the growth of gallium nitride (GaN) in a sodium (Na) flux with a small amount of carbon (C) that, with the addition of lithium (Li) and gallium, can also be ...
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Kyma and Quora Partner on GaN Substrate Materials
Jun 23, 2016Kyma Technologies Inc of Raleigh, NC, USA (which provides crystalline nitride materials, crystal growth and fabrication equipment, and power switching electronics) and Quora Technology Inc have announced a strategic partnership in the ...
Tags: Kyma technologies, GaN, Quora
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Building Components for GaN Power Switches
Dec 18, 2015A team of engineers from Cornell University, the University of Notre Dame and the semiconductor company IQE has created gallium nitride (GaN) power diodes capable of serving as the building blocks for future GaN power switches -- with ...
Tags: GaN p-n junction diodes, GaN Power Switches, solid-state lighting
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Ultraviolet Photodetectors on Free-Standing Gallium Nitride
Dec 2, 2015Researchers based in USA have been studying performance improvements in aluminium gallium nitride (AlGaN) ultraviolet (UV) avalanche photodiodes (APDs) gained from using free-standing gallium nitride substrates instead of gallium nitride on ...
Tags: AlGaN, Ultraviolet photodetectors, HVPE
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Lattice Power CTO: Low and Mid-Power LED Chip Becomes Major Trend in the Industry
Nov 12, 2015The LED industry is gradually maturing in 2015, with products cost/performance (C/P) ratio becoming increasingly important. Low and mid-power flip chip products are increasingly valued by the industry. To further understand this trend ...
Tags: LED industry, LED chip, Chip Scale Packaging
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Claiming Record 4.7kv Breakdown for Gallium Nitride P-N Diodes
Oct 15, 2015Researchers in Japan have claimed record breakdown voltage combined with low on-resistance for vertical gallium nitride (GaN) p-n diodes fabricated on free-standing GaN substrates [Hiroshi Ohta et al, IEEE Electron Device Letters, published ...
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Panasonic Develops GaN Diodes with High-Current Operations and Low Turn-on Voltage
Oct 12, 2015Panasonic Corp of Osaka, Japan says that it has developed gallium nitride (GaN) diodes that can not only operate at a high current of 7.6kA/cm2 - four times greater than that tolerated by conventional silicon carbide (SiC) diodes with a ...
Tags: Panasonic, GaN Diodes
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Demand for Larger Diameters to Boost GaN Substrate Market From $2.2bn in 2014 to $4bn by 2020
Sep 14, 2015The gallium nitride (GaN) substrate market will grow from $2.2bn in 2014 to more than $4bn by 2020, forecasts research and consulting firm IndustryARC in the report 'Gallium Nitride (GaN) Substrates Market Analysis: By Type (GaN on ...
Tags: Diameters, GaN Substrate Market
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White LEDs Using Blue LED Chips to Disappear?
Aug 18, 2015“It is only a matter of time before white LEDs using blue LED chips will disappear from the market,” said Shuji Nakamura at a forum on GaN technology in July organized by Nikkei Asian Review. The comment from the inventor of ...
Tags: LED chip, Blue LED, Purple LEDs
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Toyoda Gosei Developed Vertical GaN SBDs Capable
Jul 13, 2015Japan's Toyoda Gosei Co Ltd has developed vertical gallium nitride (GaN) Schottky barrier diodes (SBDs) capable of handling 50A forward current with 790V reverse blocking [Nariaka Tanaka et al, Appl. Phys. Express, vol8, p071001, 2014]. "To ...
Tags: Vertical Schottky barrier, power supply, diodes Free standing
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Zhejiang University Jointly Developed UV-LEDs Based on Schottky Junctions
Mar 5, 2015Zhejiang University in China and University of Cambridge in the UK have jointly developed ultraviolet light-emitting diodes (UV-LEDs) based on metal-semiconductor Schottky junctions between silver nanowires (AgNWs) and gallium nitride (GaN) ...
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