2013-11-27

Rise in LED Demand to Spur Sapphire Substrate Sales

Currently 80 percent of sapphire applications are used in sapphire substrate while the other 20 percent is for non-substrate materials, according to Chinese-language online media Finance.com.cn estimations. Sapphire that is used in substrate is mainly applied in LED lighting and Si On Sapphire (SOS) related products, with LED lighting accounting  for over 90 percent. Therefore demands from LED lighting directly affect sapphire substrate and is the market’s main focus. 
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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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