LEDs ♦ news digest
The expansion of Kyma’s AlN PVDNC template manufacturing capacity is based on successful customer qualification of products fabricated in its newest high volume PVDNC reactor, the commissioning of which was announced by the company earlier this year.
LED customer feedback indicates significant improvements in LED brightness, reverse voltage, and electrostatic discharge yield. Similar benefits have been previously verified using Kyma’s lower volume manufacturing tools which the company has used since it was founded in 1998.
Kyma has also qualified the tool for production of PVDNC AlN on silicon wafers. Several customers report improved device properties for both RF and power switching applications.
Kyma says qualification of this new tool was not a small task and that its design is totally new compared to earlier designs, with key design changes targeting improved tool uptime, shorter process cycle time, and better process repeatability and uniformity.
“We are pleased to qualify our new reactor for both sapphire and silicon based PVDNC AlN template products,” said Heather Splawn, Kyma’s Chief Operating Officer. “Doing so represents not only a significant boost to our manufacturing capacity; it also validates our improved tool design approach which should prove beneficial for our continued expansion plans going forward.”
Kyma believes that the market for nitride semiconductor devices is estimated to be $9B in 2011 and is expected to reach $90B over the long term, including $60B in visible lighting applications and $30B in power electronics applications.
LED street lights to be installed in Taiwan
President Ma Ying-jeou said today that Taiwan is using LED traffic lights throughout the country and will install LED street lights and indoor lights in public buildings in the near future
Ma made the remarks at the inaugural ceremony of Genesis Photonics Inc.’s new plant at the Southern Taiwan Science Park in Tainan City. Ma said green technology is one of the Cabinet’s six key development industries. Efforts to develop the industry have turned Taiwan into the world’s biggest LED lighting and molding suppliers, he said, adding that the newly-built plant is set to create some 300 jobs. He continued by saying that Taiwan trails only Singapore in the use of LED traffic lights, and that the next step is to utilize LEDs in street lights and indoor lighting devices. David Chung, president of Genesis Photonics Inc., said the company is confident about the future of the LED industry. Despite the faltering global economic situation, which has resulted in a large stockpile of LEDs, the company will overcome the challenge by focusing on technological upgrades. Chung went on to say the company’s new plant will feature Taiwan’s first production lines for 6-inch epitaxial wafers. A center of innovation will also be established at the plant for the training of research and development talent in the field of solid-state lighting technology.
Fairchild`s AlGaAs infrared LED optically coupled to a phototransistor
Industrial applications present reliability challenges to designers as a result of the high temperature and tight spaces commonly found in power supplies, motor controls and consumer applications such as chargers and adapters.
To combat these reliability challenges, system design engineers need an optocoupler, which allows for more design margins and has stable parameters in high temperature environments.
To meet this need, Fairchild Semiconductor a global supplier of high-performance power and
November/December 2011
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