Rubicon Technology Ships 400,000th Large Diameter Sapphire Wafer

  Rubicon Technology Ships 400,000th Large Diameter Sapphire Wafer

 Company Continues Market Leadership Supplying Large Diameter Sapphire Wafers
                         to LED and SoS/RFIC Markets

Business Wire

BENSENVILLE, Ill. -- January 28, 2013

Rubicon Technology, Inc. (NASDAQ:RBCN) a leading provider of sapphire
substrates and products to the LED, semiconductor, and optical industries,
today announced that it has shipped a total of 400,000 six-inch sapphire
wafers to LED manufacturing and SoS/RFIC markets.

Sapphire is 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. A second
significant market for sapphire is Silicon-on-Sapphire (SoS) Radio Frequency
Integrated Circuits (RFICs). SoS RFIC chips deliver high RF performance with
low power consumption, a small form factor, and significantly reduced
crosstalk in antenna applications that are pervasive in smart phones and other
consumer devices.

As the global technology leader for sapphire, Rubicon was first to develop
large diameter sapphire wafers for use in the RFIC market and further
developed large diameter sapphire wafers to meet the specific needs of the LED
industry.

“This latest milestone demonstrates Rubicon’s continuing leadership in the
volume delivery of high quality large-diameter sapphire wafers,” said Raja M.
Parvez, President and CEO of Rubicon Technology. “Our emphasis on vertical
integration – achieving cost efficiencies and control of sapphire production –
enables us to scale production and ensures our customers an unparalleled,
reliable supply of high quality, large diameter sapphire wafers that meet
their unique and exacting specifications. Rubicon’s capabilities are
increasingly important as LED manufacturers seek to reduce costs throughout
the manufacturing process to make LED-based lighting more affordable for
consumers and encourage adoption worldwide.”

LED chips are necessary for the backlighting in consumer devices and the new
wave of energy efficient LED lighting. IMS Research estimates that the overall
LED market will reach nearly $10.9 billion in 2012 with $2.9 billion in
lighting. By 2015, IMS projects that the LED market will reach $13.9 billion
with the lighting market nearly doubling to $5.8 billion in three years.

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.

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

Contact:

Garfield Group Public Relations
Beth Hespe, 215-867-8600 x235
bhespe@garfieldgroup.com