news digest ♦ Telecoms
Avago and TriQuint bury the hatchet on BAW filters
The designer and developer of analogue III-V semiconductor devices and the gallium arsenide and gallium nitride innovator have come to an agreement to cross licensing patents Avago Technologies, a supplier of analogue interface components for communications, industrial and consumer applications, and RF solutions supplier TriQuint Semiconductors have agreed to settle all claims between the companies concerning intellectual property for bulk acoustic wave (BAW) filters. The two parties have entered into patent cross licenses and have agreed to dismiss all related litigation. The specific terms of the settlement and the resulting licensing agreement are confidential. “We are pleased to have reached an amicable resolution with TriQuint,” says Hock Tan, President and CEO of Avago Technologies Limited. “We are happy to have successfully put this litigation behind us,” adds Ralph Quinsey, CEO of TriQuint Semiconductor, Inc.
Global semiconductor sales escalate
A new report says silicon manufacturer Broadcom and compound semiconductor supplier TriQuint are good examples that illustrate that the semiconductor industry is bouncing back
The semiconductor stock market has not done too badly this year, thanks to the growing demand for tablets and smartphones.
The mobile market relies on both silicon and compound semiconductor devices although silicon dominates in many of these areas.
According to
ParagonReport.com, the Semiconductor Industry Association (SIA) recently reported worldwide semiconductor sales showed growth across all regions.
The organisation reported that for March 2012, worldwide sales of semiconductors totalled $23.3 billion, a 1.5 percent increase over the previous month. Sales in Europe and Japan grew 3.8 percent and 1.2 percent respectively.
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www.compoundsemiconductor.net June 2012
“We are encouraged to see that sequential growth resumed across all regions, especially in Europe and Japan, in March,” says Brian Toohey, president, Semiconductor Industry Association. “We look for seasonal moderate growth to continue in the second quarter and build momentum as 2012 progresses. However, while forecasts for global economic growth are improving, macroeconomic and geopolitical uncertainties remain.”
How to cool high-power GaN
semiconductor devices Latest developments in gallium nitride will be used in wireless applications, traffic lights and electric cars
A group of researchers at the University of California, Riverside Bourns College of Engineering have developed a technique to keep cool a semiconductor material used in everything from traffic lights to electric cars. GaN semiconductor materials have been used in bright lights since the 1990s, and are now used in wireless applications due to high efficiency and high voltage operation. However, the applications and market share of GaN electronics is limited because it is difficult to remove heat from them. That could change due to a technique developed by the Nano-Device Laboratory research group led by Alexander Balandin, professor of electrical engineering and founding chair of Materials Science and Engineering program. The research group demonstrated that hot spots in GaN transistors can be lowered by as much 200C through the introduction of alternative heat-escaping channels implemented with graphene multilayers, which are excellent heat conductors. The temperature reduction translates to an increase in the lifetime of the device by a factor of ten. “This represents a transformative change in thermal management,” Balandin says. The new approach to thermal management of power electronics with graphene was outlined in a paper “Graphene quilts for thermal management of high- power GaN transistors” that was published on May 8th
in Nature Communications.
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