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Technical Insights


Thursday 18th February 2010
A new report by Infonetics Research has revealed the potential for growth in 2010 of optical network hardware vendors as they strive to support such organisations' upgrades to next-generation technology.
Wednesday 10th February 2010
The University of California, Santa Barbara spin-off breaks it own record for the longest wavelength, CW nitride laser.
Wednesday 10th February 2010
Kevin Schoenrock, product marketing manager for TriQuint, explains how two GaAs processes within its TQBiHEMT reduces part count and saves board space.
Friday 5th February 2010
Veeco has spoken out about industry claims that a bottleneck of MOCVD tools will impact upon market demand for HB LEDs. It stated that not just any company can take away market share from Veeco should they be unable to meet demand.
Wednesday 3rd February 2010
The GaAs technology used by TriQuint Semiconductor means it can meet the demands placed upon network operators of faster and more efficient broadband internet access via smartphones.
Wednesday 3rd February 2010
Cree's new XLamp MPL EasyWhite LED - which has a footprint 72 per cent smaller than its nearest competitor - is a result of effective research and development, LED product marketing manager at Cree Paul Scheidt has said.
Monday 1st February 2010
The DoE has given £2.4 million in funding to Applied Materials so it can advance a GaN MOCVD system to make the manufacture of LEDs cheaper and more efficient.
Monday 1st February 2010
Soaring sales of VCSELs for optical links in PCs and handsets, coupled to the launch of ultra-efficient multi-junction solar wafers and the introduction of next-generation wireless products could bolster IQE’s revenue in the coming years.
Monday 1st February 2010
Osram has been a front-runner in race to make a green-emitting nitride laser, and its attempts to reduce dark spots in the active layer have enabled the company to be the first to break the 500 nm barrier. Stephan Lutgen, Uwe Strauß and Michael Schmitt detail device development and the wide variety of applications that promise to benefit from it.
Monday 1st February 2010
If terrestrial concentrator photovoltaics are to enjoy significant commercial success then electricity generation costs must fall. One way to do this is to improve the design of the cell with a stacked architecture that eliminates strain and current matching issues, according to IMEC’s Giovanni Flamand.
Monday 1st February 2010
LEDs are making inroads into the backlighting of LCD TVs and general illumination. Further success hinges on reducing the cost per lumen, and this can be realized through a move to growth on larger sapphire or silicon substrates, argues Aixtron’s Rainer Beccard.
Monday 1st February 2010
The benefits of fab ownership will increasingly outweigh the disadvantages as component manufacturers meet the challenges of lower cost and higher transmission speeds by design and test complexity back to the chip level argues Oclaro's Andy Carter.
Monday 1st February 2010
Highlights from IEDM 2009 include the development of novel, normally-off GaN transistors for power electronics and improved gate dielectrics for III-V transistors targeting logic applications. Richard Stevenson reports.
Monday 1st February 2010
Modulation experiments with nitride lasers reveal that Auger is the cause of LED droop
Sunday 1st November 2009
Differences in polarity, lattice constant and thermal expansion hamper the unification of compound semiconductor light emitting structures and silicon ICs. But Zetian’s Mi’s team from McGill University can avoid all these issues by turning to a novel micro-tube laser architecture that suspends the device just above the wafer surface. Richard Stevenson reports.
Sunday 1st November 2009
Three themes dominated the discussions at the latest nitride meeting: the cause of LED droop; the best approach to plugging the green gap; and the development of higher-quality, lower-cost native substrates. Cambridge University researcher Michelle Moram reports from Jeju Island, Korea.
Sunday 1st November 2009
The European Commission is funding a multi-national project that aims to boost the performance of nitride-based transistors, pressure monitors and chemical sensors. Success could lead to creation of AlInN/GaN-based devices that probe the environment in jet engines, measure incredibly high pH levels, and deliver output powers of more than 1kW at 2 GHz. Richard Stevenson investigates.
Sunday 1st November 2009
Temperature uniformity in wafer processing has always been an area requiring accurate measurement and control in silicon based manufacturing. With new materials and scaling challenges the need for temperature control has increased to the point that any deviation from requirements can lead to manufacturing failure. Thomas Kupiszewski of Watlow discusses how thermal design analysis is used in improving existing processes and even extending the life of equipment.
Sunday 1st November 2009
Superluminescent diodes have been the poor relative of the photonics toolkit for many years. But Optical Coherence Tomography promises to change that, and quantum dot superluminescent diodes have the potential to be the ideal technology for this application, says Mark Hopkinson from the University of Sheffield, UK.
Sunday 1st November 2009
It’s been a roller coaster year for AkzoNobel’s High Purity Metalorganics division. Orders in the first quarter were incredibly weak, but the return of a burgeoning LED industry and great solar prospects are strongly reviving the business. Richard Stevenson talks to Michiel Floor, AkzoNobel’s global business manager of these products, about this division’s change in fortunes and other recent developments.
Sunday 1st November 2009
US researchers claim to have broken the record for the single facet output power from a quantum cascade laser (QCL).
Saturday 17th October 2009
Shipments of GaAs chips for automotive radar will rise over the next few years thanks to the penetration of this technology into mid-price cars, such as the Volvo S80. However, sales are expected to falter by the middle of the next decade, due to tough competition from SiGe. Richard Stevenson reports.
Friday 16th October 2009
Increasing the conversion efficiency of triple-junction solar cells will help to cut the cost of this form of power generation. One approach to higher efficiencies is to push the bandgaps of the sub-cells towards the theorectical ideal, which is approach that we have adopted at Fraunhofer ISE, says Frank Dimroth, Wolfgang Guter, and Andreas Bett.
Friday 16th October 2009
DARPA is driving the development of ultra-high-frequency emitters and receivers based on InP HEMTs and HBTs. If successful, this effort could ultimately lead to the manufacture of imaging systems that enable helicopter pilots to navigate with greater confidence in foggy, smoky and dusty conditions. Richard Stevenson investigates.

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