Philips Lumileds Announces Technology and Process for Bin Number and Size Reduction
Source/Type: Compound Semiconductors Online - Reported News

Author: LIGHTimes Staff

May 29, 2008... Philips Lumileds announced at LightFair International in Las Vegas, Nevada USA, that it has reduced the number of white color bins for the company’s warm white Luxeon Rebel LEDs. The company cites a new technology roadmap for Lumiramic phosphor technology as the reason for the improvement in white LED consistency. Philips Lumileds calls the binning of white LEDS, a “work around”, that helps LED manufacturers manage the variation in color and tint that is part of the LED fabrication and packaging process. The company points out that to date no solutions decrease or eliminate the risk of inconsistency. Philips Lumileds also points out that most LED makers have resorted to producing greater volumes of LEDs and discarding those that do not fit within the desired color ranges. This ultimately results in higher costs.

The company explained in its latest press release that while white LED efficiency has improved to 80 lm/W over the last 18 months, the industry still needs to improve consistency. Philips Lumileds says it has taken a major step in that direction with its Lumiramic phosphor technology. Philips Lumileds’ key innovation, is a process in which the Lumiramic phosphor technology of pre-measured ceramic plates is matched with a TFFC die of appropriate thickness and correct wavelengths to target specific color temperature. For the full story, SecondPage members login here and non-members can find out more

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