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 as HDTVs, laptops, smart phones and tablets. “Rubicon Technology is working hard to advance the adoption of large diameter sapphire substrates and is the world’s most experienced provider of 6-inch sapphire wafers,” said Raja M. Parvez, President and CEO, Rubicon Technology. “With the growth of the LED lighting market and the resulting increase in demand for high brightness LEDs, Rubicon believes that now is an opportune time for more customers to move toward the increased throughput and greater efficiency that are possible with large-diameter substrates.” Rubicon will have a number of sapphire products for the LED market on display in Booth# F-25 & 26, Hall 4 at the International LED Expo including sapphire cores and ingots and large diameter wafers ranging in size from 4 inches to 6 and 8 inches. About Rubicon Technology Rubicon Technology, Inc. is an advanced electronic materials provider that is engaged in developing, manufacturing and selling monocrystalline sapphire and other crystalline products for light-emitting diodes (LEDs), radio frequency integrated circuits (RFICs), blue laser diodes, optoelectronics and other optical applications. The Company applies its proprietary crystal growth technology to produce very high-quality sapphire in a form that allows for volume production of various sizes and orientations of substrates and windows. Rubicon is a vertically-integrated manufacturer with capabilities in crystal growth, high precision core drilling, wafer slicing, surface lapping, large-diameter polishing and wafer cleaning processes, which the Company employs to convert the bulk crystal into products with the quality and precision specified by its customers. The Company is the world leader in larger diameter products to support next-generation LED, RFIC and optical window applications.