A new world auction record for a fancy vivid pink diamond was set at Sotheby’s Tuesday when an 8.41-carat internally flawless fancy vivid purple-pink diamond sold for $17.8 million. An Asian private buyer bought the diamond, which ...
Tags: pink diamond, Crafts
Xi’an Jiaotong University and Shaanxi Supernova Lighting Technology Co., Ltd., of China have used silver nanorods to engineer gallium vacancy defects in gallium nitride (GaN) to create color tunable light emitting diodes [Yaping Huang ...
Tags: GaN, LEDs, LED heterostructure
Sapphire ingot maker Tera Xtal Technology has filed with Taiwan's Intellectual Property Court a charge against Apple Asia, Apple's subsidiary based in Hong Kong, and Taiwan-based consumer electronics retail chain Senao International and ...
Tags: Tera Xtal, Infringement, Lighting
US-based sapphire ingot producer GT Advanced Technologies (GTAT) has applied for bankruptcy protection possibly because its HEM technology-based ingot growing process has seen much lower than expected yield rates at only about 40%, ...
Tags: GTAT, bankruptcy, sapphire ingot
Rubicon Technology Inc of Bensenville, IL, USA (which makes monocrystalline sapphire substrates and products for the LED, semiconductor and optical industries) says that Raja Parvez has stepped down as CEO and as a member of the board of ...
Tags: Rubicon, CEO, Electrical
Toshiba Electronics Europe of Düsseldorf, Germany (TEE, the European electronic components business of Tokyo-based Toshiba Corp) has extended its LETERAS family of white LEDs with a new series of ultra-compact devices that combine ...
Tags: Toshiba GaN-on-Si LEDs, Electrical, Electronics, LED
Meijo and Nagoya universities in Japan have developed a laser lift-off (LLO) technique for removing gallium nitride (GaN) substrates from ultraviolet (UV) light-emitting diodes (LEDs) to improve light extraction efficiency [Daisuke Iida et ...
Researchers in Singapore have reported high-frequency performance of gallium nitride (GaN) indium aluminium nitride (InAlN) high-electron-mobility transistors (HEMTs) on silicon substrates, including the first noise measurements [S. ...
Tags: Electrical, Electronics
Researchers in Japan and USA have claimed the first experimental demonstration of higher breakdown voltage for slant field-plate (FP) gallium nitride (GaN) high-electron-mobility transistors (HEMTs) over convention field-plate designs ...
Tags: GaN, HEMTs, Electronics
Peregrine Semiconductor Corp of San Diego, CA, USA - a fabless provider of radio-frequency integrated circuits (RFICs) based on silicon-on-sapphire (SOS) and silicon-on-insulator (SOI) - has launched the UltraCMOS PE42424 high-isolation ...
Tags: Peregrine, CMOS, Wi-Fi Switch
Lextar Electronics Corp of Hsinchu Science Park, Taiwan (a vertically integrated manufacturer of high-brightness LED epitaxy, chips and packages, as well as smart lighting products) and LED chip, lamp and lighting fixture maker Cree Inc of ...
Tags: Cree, Taiwanese LED Maker Lextar, Electrical
Cree and Taiwanese LED firm Lextar Electronics have entered into a supply agreement for sapphire-based LED chips. As part of the agreement, Cree will invest approximately $83 million (50.1 million) to purchase 83 million Lextar shares. The ...
Following the use of sapphire to make covers for the home button and camera of the iPhone 5, China- and South Korea-based smartphone vendors are considering the adoption of sapphire, and therefore the application in smartphones is likely to ...
Tags: Use of Sapphire, Take off, Lights
UK full-service energy-efficiency specialist SaveMoneyCutCarbon.com has announced a new partnership as Master Distributor for Soraa Inc of Fremont, CA, USA and its GaN-on-GaN (gallium nitride on gallium nitride) technology, which provides ...
Tags: Soraa, Distributor, Electrical
The LH351B features high efficacy with color stability. The advantage of LH351Z is optimal cost performance with 140lm/W light efficacy. These packages are optimized for outdoor lighting applications, such as street lights and security ...
Tags: Samsung, High Power LEDs, Lights