2009-06-02 17:25:04 -

Rubicon Technology, Inc. (NASDAQ:RBCN), a leading provider of sapphire substrates and products to the LED, RFIC, Semiconductor, and Optical industries, today announced that Raja Parvez, president, CEO and director, and Bill Weissman, CFO, will present at the 2009 UBS Global Technology and Services Conference at 9:15 am on Monday, June 8, 2009 at The Sheraton New York Hotel & Towers

in New York, New York.

The presentation will be webcast live and will be available by visiting the Investor Relations section of Rubicon’s website at www.rubicon-es2.com : .


About Rubicon Technology, Inc.

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 actively developing larger diameter products to support next-generation LED, RFIC and optical window applications.

Further information is available at www.rubicon-es2.com : .



Rubicon Technology, Inc.William WeissmanChief Financial

Officer847-457-3610