Rubicon Technology, Inc. (NASDAQ:RBCN), a leading provider of sapphire substrates and products to the LED, semiconductor, and optical markets, today announced that it will showcase its line of sapphire substrates for the LED industry at the International LED Expo in Kintex, Korea, June 25-28. Rubicon will exhibit its line of sapphire products in Booth# F-25 & 26, Hall 4. Sapphire wafers are a key building block for LEDs – the most energy-efficient technology for general lighting and the dominant backlighting technology in consumer products such...

Sumitomo Metal Mining Co., Ltd. has set up a production line for large sapphire substrates at its fully-owned subsidiary Okuchi Electronics Co., Ltd., and has started mass production. Sapphire substrates are used as a substrate for fabricating gallium nitride for use in white and blue LEDs. As the market for white LEDs expands from backlighting for large-size liquid crystal televisions to include general purpose lighting, demand from LED manufacturers for large sapphire substrates which offer an opportunity to improve productivity has also increased. Since the start o...