news digest ♦ LEDs aging caused by the short-wave blue light.
The Oslon Signal includes chips incorporating UX:3 technology, which are capable of operating at very high performance levels even at extremely high currents. This is an important aspect, as blue signal light is often pulsed and therefore requires from high currents even greater luminous power. The LED measures only 3 x 3 mm. It is equipped with an insulated heat sink, and so can be mounted easily and conveniently, especially in combination with a conventional FR4 board.
The lens has a radiation angle of 80° and provides a highly symmetrical light output. This means the Oslon Signal can be easily mounted in existing emergency vehicle lighting applications and help provide significantly brighter signal lighting.
“Our developers have succeeded in doubling the brightness increase with blue LEDs within a very short time and therefore supplying the world’s brightest product in this sector. That’s why we support not only our customers in this regard but also contribute to greater road safety, as emergency vehicles can be seen sooner and better”, says Jennifer Rieder, marketing manager at Osram Opto Semiconductors.
In addition to blue LEDs, the entire Oslon family of the Regensburg-based company includes a variety of other colours such as red, yellow, green and white, which are all created using the latest thin-film chip technologies, which make them particularly effective.
Rubicon ranked number 13 on Chicago 2012 “Fast 50 List”
The provider of sapphire substrates and products to the LED, RFIC, semiconductor, and optical industries has seen a 546 percent five-year revenue growth, with $134 million in revenue in 2011 Rubicon Technology, was ranked #13 on Crain’s Chicago Business’ 2012 Fast 50.
This is an annual list of the fastest growing public and private companies in the Chicago area.
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www.compoundsemiconductor.net July 2012
Crain’s ranks the fastest-growing public and private companies in the Chicago area based on five-year revenue growth. Rubicon has seen a 546 percent five-year revenue growth, reporting $134 million in revenue in 2011 up from $21 million in revenue in 2006.
“Rubicon’s growth over the past five years reflects our leadership in the market for sapphire substrates, the essential building block for LED chips and Silicon on Sapphire (SoS) RFIC chips,” says Raja M. Parvez, President and Chief Executive Officer of Rubicon.
“Throughout our 11 year history, Rubicon’s focus on continuous innovation has helped us develop proprietary crystal growth technology that enabled us to be first-to-market with high quality, large- diameter polished sapphire wafers. Customers rely on Rubicon because of the purity and low defect density of our product and because, as a vertically integrated supplier, we are a highly reliable partner. We look forward to continued growth as LED technology is adopted in the general lighting market and as product developers find additional applications for commercial sapphire.”
Rubicon is one of the world’s largest provider of large-diameter sapphire wafers. As a vertically integrated supplier, Rubicon perfected the process to grow large sapphire crystals from raw materials in custom-built, proprietary furnaces replicating the organic sapphire creation process found in nature.
As a result, Rubicon says it has been able to scale the growth of bulk crystal from 30 kg to 85 kg to 200 kg without compromising high quality or high yield. The company completes the final stage of vertical integration with high precision core drilling, wafer slicing, surface lapping, large diameter polishing and wafer cleaning in its Penang, Malaysia facility. To date, Rubicon has shipped more than 230,000 large diameter wafers to the LED and SoS markets.
World`s first 520nm green semiconductor LD over 100mW
By using a {20-21} semi-polar gallium nitride substrate, adjusting crystal growth, wafer
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