Researchers based in China have found “remarkably reduced efficiency droop” from staircase (SC) thin indium gallium nitride (InGaN) quantum barrier (QB) light-emitting diodes (LEDs) [Kun Zhou et al, Appl. Phys. Lett., vol105, ...
Tags: High Current, remarkably reduced efficiency droop, Electrical
The “Blue Belle of Asia,” weighing 392.52 carats, set a new world record price for a sapphire when it sold for $17.5 million, leading Christie’s to its highest jewelry auction total ever. Click through the gallery to ...
Tags: Blue Belle of Asia, sapphire, jewelry
For third-quarter 2014, Rubicon Technology Inc of Bensenville, IL, USA (which makes monocrystalline sapphire substrates and products for the LED, semiconductor and optical industries) has reported revenue of $8m (at the bottom of the $8-12m ...
Tags: 2-Inch Sapphire, Electronics
Researchers based in Singapore and Turkey have been developing a hole accelerator structure with a view to improving the performance of indium gallium nitride (InGaN) semiconductor light-emitting diodes (LEDs) [Zi-Hui Zhang et al, Appl. ...
Tags: Nitride LEDs, InGaN
Contrel Technology, which makes TFT-LCD, PV and LED inspection and testing equipment, will invest in production of PSS (patterned sapphire substrate) using soft mask photolithography technology developed by a R&D team under National Cheng ...
Tags: Contrel Technology, PV, LED inspection, PSS production
Another round of jewels from the collections of the late Estée and Evelyn Lauder are the highlight of Sotheby’s upcoming Magnificent Jewels sale, scheduled for Dec. 9 in New York. Estée Lauder (1906-2004) was the ...
Tags: jewels, Lauder Jewels
North Carolina State University (NCSU) has been developing homo-epitaxy of non-polar aluminium nitride (AlN) with a view to deep ultraviolet (DUV, less than 300nm wavelength) optoelectronics [Isaac Bryan et al, J. Appl. Phys., vol116, ...
Tags: aluminium nitride, UV LED
For its fiscal first-quarter 2015 (ended 28 September 2014), Cree Inc of Durham, NC, USA has reported revenue of $427.7m, up 9% on $391m a year ago but down 2% on $436.3m last quarter (and below the $440-465m forecasted in mid-August). ...
A cushion-cut, L color, VS2 diamond weighing 101.36 carats sold for $5 million, or $49,100 per carat, during Christie’s Important Jewels auction held Wednesday. The auction house’s sale, which took place in New York, totaled ...
Tags: 101-Carat Diamond, diamond
Samsung Electronics will reportedly withdraw from the global LED lighting market due to low-price pressure from China-based makers, while Taiwan-based TSMC Solid State Lighting will reportedly cease operations, according to industry ...
Tags: LED Lighting, Samsung, Lighting
Sotheby’s anticipates that the 8.62-carat pigeon’s blood “Graff ruby,” one of the finest privately owned rubies in the world, will sell for as much as $9 million at its auction in Geneva next month. ...
Tags: Graff Ruby, Jewels
Glancy Binkow & Goldberg LLP has filed a class action lawsuit ‘Deerhaven Capital LLC vs Gutierrez et al’ (docketed as 14-cv-00463) in the United States District Court for the District of New Hampshire on behalf of a class ...
The US Patent Office has issued US Patent No. 8,859,310 to Versatilis LLC of Winooski, VT, USA (a technology and business development firm that focuses on novel materials and processes for electro-optical devices, as well as extending its ...
Tags: US Patent, Semiconductor
Sapphire wafer maker Tera Xtal Technology has cancelled a plan to issue 25 million new shares mainly due to large drops in its stock prices. The new shares were originally meant to be subscribed by existing shareholders (90%) and ...
Tags: Sapphire wafer, Tera Xtal
GT Advanced Technologies' (GTAT) move to seek bankruptcy protection on October 6 came as a surprise to the IT industry especially because the maker was a major supplier of Apple for sapphire screens. The related supply chain in general, ...
Tags: GTAT, Sapphire Industry