news digest ♦ LEDs 10 times existing LEDs.
Currently, the brightness of a power chip LED in mass production is around 100 lumens in warm white but this new product produces 500 lumens which is 5 times better. As an example, when making a LED bulb for a 60W household bulb replacement, generally, 10-20 LED packages are used, but when this new product is applied, the same brightness can be achieved with only 1-2 packages.
ARC Energy’s CHES sapphire produces 5% brighter LEDs
The company has conducted an LED manufacturing study and a new white paper explains how CHES technology and CHES furnaces are enabling sapphire growth companies to meet increasing demands
In a white paper entitled “LED Manufacturing Study on CHES Sapphire,” ARC Energy has published results of a study showing that sapphire grown from its proprietary CHES technology yield 5% greater LED brightness than the industry standard.
LED Bulb Using New nPola Technology
Seoul Semiconductor CEO, Chung Hoon Lee, expressed strong confidence in the new product by saying “I’ve worked very hard for the past 20 years in this industry and it is safe to say that this new product is the culmination of 20 years of core technologies development. It is a major milestone for the LED light source.” Shuji Nakamura, who many believe as the father of the LED, was also present at this event to comment on the new technology. He is currently a professor at the University of California, Santa Barbara and an advisor to Seoul Semiconductor.
In addition to the release of the new product, the event provided booths where attendees could experience Seoul Semiconductor’s core products such as its Acrich AC LED technology, UV LEDs, white LEDs, and others.
The company said it will immediately begin production of this new product with sales domestically and in strategic markets abroad.
Sapphire wafers from a-axis and c-axis grown boules
The study purposefully included sapphire material exhibiting a wide range of etch pit distortion (EPD) levels to determine whether or not EPD affects LED manufacturing. The study took sapphire through the complete LED chip manufacturing process and concluded that all material passed LED standards and that no correlation was found between LED performance and EPD level of CHES wafers.
“We are pleased to see CHES achieving significantly higher LED brightness which translates to higher profits for our customers,” says Rick Schwerdtfeger, co-founder and chief technology officer for ARC Energy. “CHES is rapidly establishing itself as the technology of choice for the future of HB-LED production.”
ARC’s study is the first subject in a new series called “CHES Foundations”, which explains how CHES technology and CHES furnaces are enabling sapphire growth companies to meet increasing demand.
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www.compoundsemiconductor.net July 2012
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