news digest ♦ LEDs
Cree’s New XLamp LED Can Reduce Initial Fixture Costs
By enabling designers to use brighter, precisely- optimized LEDs for each particular application, Cree is helping lower costs and further simplifying and shortening the LED fixture design cycle.
Cree, a market leader in LED lighting, has announced the commercial availability of XLamp XP-E High Efficiency White (HEW) LEDs. The new high-efficiency components extend the light output and efficacy of the award-winning XLamp XP-E LED family, enabling fixture designs that can use up to 50 % fewer LEDs, which can help drive down costs for fixture and bulb manufacturers while delivering the same system performance.
XP-E HEW LEDs are optimized to lower initial costs for diffuse lighting applications, such as LED replacement lamps and downlights. For example, an A-19 lamp that uses XP-E LEDs could be re- designed to use half as many XP-E HEW LEDs while maintaining the same efficacy.
“One of the major barriers to LED lighting adoption and design remains upfront cost,” said Paul Thieken, Cree director of marketing, LED components. “By enabling designers to use brighter, precisely-optimized LEDs for each particular application, Cree is helping lower costs and further simplifying and shortening the LED fixture design cycle.”
XLamp XP-E High Efficiency White LEDs are the first high-power LEDs featuring Cree’s new Direct Attach™ LED technology. Direct Attach technology is Cree’s unique, next-generation LED chip technology that delivers higher flux, lower forward voltage, and lower thermal resistance.
“With 500 percent more die-attach area and an order-of-magnitude less die under-fill, Direct Attach technology is far more robust than any other LED flip chip technology in the market today,” said John Edmond, Cree director of advanced optoelectronics. “For our customers, these attributes, combined with the performance advantages of Direct Attach technology, can translate to brighter, more reliable lamps and fixtures, developed at a lower cost.”
XLamp XP-E High Efficiency White LEDs deliver 72
www.compoundsemiconductor.net January / February 2011
up to 148 lumens in cool white (6500K) and 114 lumens in warm white (3000K) at 350 mA. In addition to light output and efficacy improvements, XP-E HEW LEDs feature a reduced thermal resistance of 6 °C/W. XP-E HEW LEDs are available in the same white variations as XP-E LEDs, including Standard White, Outdoor White and 80-CRI White.
XLamp XP-E High Efficiency White LEDs are available now in sample and production quantities with standard lead times. IES LM-80 data for measuring lumen maintenance of LED light sources, for XP-E HEW LEDs, is targeted for availability in February 2011. To locate a distributor, please visit
www.cree.com/buyxlamp.
Cree is a market-leading innovator of lighting-class LEDs, LED lighting, and semiconductor solutions for wireless and power applications. Its 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.
Veeco Ships 200th K465i MOCVD System
The firm has shipped theTurboDisc K465i MOCVD reactor to an LED manufacturer in Asia.
Veeco Instruments has shipped its 200thTurboDisc(R) K465i Metal Organic Chemical Vapor Deposition (MOCVD) System to a leading LED manufacturer located in Asia.
“We are pleased that since its introduction to the market in January 2010, the K465i has become the market leading MOCVD system for high volume manufacturing of LEDs,” said Bill Miller, Ph.D., Executive VP, Compound Semiconductor and head of Veeco’s MOCVD Operations. “We are proud of Veeco’s ability to ramp production of the K465i and support our global customers to meet the strong demand for tools as LED adoption accelerates for backlighting and lighting applications. This is a significant milestone for our business.”
The production-proven K465i extends Veeco’s lead in capital efficiency - the number of good wafers per day for each capital dollar - for high volume
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