2014-03-11

Alexander Matukhnov: Sapphire Manufacturing is Not Overnight Success

LED lighting remains the largest market for sapphire application. LED has become a huge competitor for traditional lighting despite of higher costs. High prices, however, are a temporary problem. At-Vac believes that continual advancement of epitaxial wafer technology and LED lighting equipment’s current price fall trend will help lower retail prices. 
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For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ MORE

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