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Latest Epitaxy Stories

2011-06-13 14:25:48

A new generation of high speed, silicon-based information technology has been brought a step closer by researchers in the Department of Electronic and Electrical Engineering at UCL and the London Centre for Nanotechnology. The team's research, published in next week's Nature Photonics journal, provides the first demonstration of an electrically driven, quantum dot laser grown directly on a silicon substrate (Si) with a wavelength (1300-nm) suitable for use in telecommunications. Silicon is...

2011-06-10 13:02:00

YORKTOWN HEIGHTS, N.Y., June 10, 2011 /PRNewswire/ -- Today, IBM (NYSE: IBM) Research scientists announced that they have achieved a milestone in creating a building block for the future of wireless devices. In a paper published yesterday in the magazine Science, IBM researchers announced the first integrated circuit fabricated from wafer-size graphene, and demonstrated a broadband frequency mixer operating at frequencies up to 10 gigahertz (10 billion cycles/second). (Logo:...

2011-05-24 18:29:33

Scientists from the National Physical Laboratory (NPL), in collaboration with Linköping University, Sweden, have shown that regions of graphene of different thickness can be easily identified in ambient conditions using Electrostatic Force Microscopy (EFM). The exciting properties of graphene are usually only applicable to the material that consists of one or two layers of the graphene sheets. Whilst synthesis of any number of layers is possible, the thicker layers have properties closer...

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2011-03-22 09:16:44

A new "templated growth" technique for fabricating nanoribbons of epitaxial graphene has produced structures just 15 to 40 nanometers wide that conduct current with almost no resistance. These structures could address the challenge of connecting graphene devices made with conventional architectures "“ and set the stage for a new generation of devices that take advantage of the quantum properties of electrons. "We can now make very narrow, conductive nanoribbons that have quantum...

2011-01-20 15:30:00

MILPITAS, Calif., Jan. 20, 2011 /PRNewswire/ -- Today, KLA-Tencor Corporation (Nasdaq: KLAC), the world's leading supplier of process control and yield management solutions for the semiconductor and related industries, introduced its new Candela® 8620 substrate and epitaxy (epi) wafer inspection system. Designed for high brightness light emitting diode (HBLED) manufacturers, the Candela 8620 provides automated defect inspection for LED materials such as gallium nitride,...

2010-12-08 00:35:01

Osaka, Dec 8, 2010 - (JCN Newswire) - Panasonic today announced the development of a new technique to drastically increase the blocking voltage of Gallium Nitride (GaN) -based power switching transistor on silicon (Si) substrates. The blocking voltage of the Si substrate can be added to that of the GaN transistor by the new structure which will enable the blocking voltage over 3000V. The new GaN transistor extends the operating voltages of a variety of power switching systems including...

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2010-11-23 07:22:02

There's good news in the search for the next generation of semiconductors. Researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley, have successfully integrated ultra-thin layers of the semiconductor indium arsenide onto a silicon substrate to create a nanoscale transistor with excellent electronic properties. A member of the III"“V family of semiconductors, indium arsenide offers several...

2010-07-12 08:00:00

ST. FLORIAN, Austria, July 12 /PRNewswire/ -- EV Group (EVG), a leading supplier of wafer bonding and lithography equipment for the MEMS, nanotechnology and semiconductor markets, today announced that it has introduced the EVG560HBL wafer bonder -- the industry's first fully automated wafer bonding system for high-brightness light emitting diode (HB-LED) manufacturing. The system features a new design for multi-substrate bonding and is capable of throughput rates of an unprecedented 160...

2010-06-16 21:57:21

Open the door to quantum optoelectronic effects in the GaN-based system For the very first time, a team of researchers in Germany has introduced quantum dots in fully epitaxial nitride laser structures without the need for hybrid systems -- effectively eliminating the cumbersome method of combining different materials from epitaxy and evaporation. This should help pave the way to a further optimization of lasers and single photon emitters in the visible spectrum region, according to the team....

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2010-06-11 07:15:30

Scientists have made a breakthrough toward creating nanocircuitry on graphene, widely regarded as the most promising candidate to replace silicon as the building block of transistors. They have devised a simple and quick one-step process based on thermochemical nanolithography (TCNL) for creating nanowires, tuning the electronic properties of reduced graphene oxide on the nanoscale and thereby allowing it to switch from being an insulating material to a conducting material. The technique...


Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
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