Cree Inc.

Author:
Reported by Cliff Keys, Editorial Director, Editor-in-Chief, Power Systems Design

Date
11/30/2010

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Cree demonstrated its worldwide strength in Silicon Carbide technology. The company also leads the LED lighting revolution and is setting the stage to obsolete the incandescent light bulb through the use of energy-efficient, environmentally friendly LED lighting. Product families include LED fixtures and bulbs, blue and green LED chips, high-brightness LEDs, lighting-class power LEDs, power-switching devices and radio-frequency/wireless devices. Cree's vertical integration is unique amongst competitors and provides a broad, deep patent portfolio with 90 patents issued for power alone. Advantages are:

  • Cost/volume leverage
  • Yield enhancement
  • Quality and reliability
Cree makes >90% of the world's SiC wafers and its customers benefit from SiC's material differences such as the 10X Breakdown Field of Si, with the lower specific on-resistance and faster switching for the same breakdown voltage; 3X thermal conductivity of Si giving higher current densities, and 3X bandgap of Si allowing higher temperature operation. Cree's Power and RF site, located in Durham, N. Carolina, US, is the world's largest dedicated WBG electronic device production facility. It was opened August 2006 And is fully ISO/TS16949:2002 certified. Here, 175 management, technical staff and production employees work on commercial production and advanced research in SiC & GaN Power and RF devices. Capacity is available to increase today's production by 3X. Commercially Available Single-die XLamp® XM-L LEDs Deliver 1000 Lumens, at 100 Lumens per Watt Cree, Inc. launched the industry's brightest, highest performance lighting-class LEDs. With breakthrough light output and efficacy, Cree XLamp XM-L LEDs are designed for very high-lumen applications, such as high-bay or roadway lighting. The XLamp XM-L LED has gone from concept to commercial availability in less than eight months, demonstrating Cree's proven commitment to developing the highest performance, most cost-effective LEDs optimized for each lighting application.

Commercially Available Single-die XLamp® XM-L LEDs Deliver 1000 Lumens, at 100 Lumens per Watt Cree, Inc. launched the industry's brightest, highest performance lighting-class LEDs. With breakthrough light output and efficacy, Cree XLamp XM-L LEDs are designed for very high-lumen applications, such as high-bay or roadway lighting. The XLamp XM-L LED has gone from concept to commercial availability in less than eight months, demonstrating Cree's proven commitment to developing the highest performance, most cost-effective LEDs optimized for each lighting application. "The XLamp XM-L LED can fundamentally change the way Cree customers look at LED light," said John Edmond, Cree director of advanced optoelectronics. "An LED with this level of light output and this level of efficacy can accelerate the development of high-output commercial lighting products and could enable applications we haven't even thought of yet. This sets a new standard for LED performance." Cool white (6500 K) XLamp XM-L LEDs deliver 1000 lumens with 100 lumens per watt efficacy at 3A. In a compact 5 mm x 5 mm footprint, XM-L LEDs offer the unique combination of very high efficacy at very high drive currents delivering light output and efficacy of 160 lumens per watt at 350 mA and up to 315 lumens and 150 lumens per watt at 700 mA, providing a 20 percent efficiency gain from the Cree current industry leading XLamp XP-G LEDs. XLamp XM-L LEDs are available in sample and production quantities with standard lead times. To locate a distributor, please visit www.cree.com/buyxlamp. For additional product and company information, please refer to www.cree.com

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