Rubicon Technology to Showcase Very Large Sapphire Windows at Photonics West 2013

  Rubicon Technology to Showcase Very Large Sapphire Windows at Photonics West

  Rubicon to display industry-leading, very large, defect-free sapphire for
              optical applications in a wide range of industries

SPIE Photonics West 2013

Business Wire

BENSENVILLE, Ill. -- February 4, 2013

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 optical products for use
indefense and aerospace, instrumentation and analytical processing,sensors
and detectors,semiconductor process equipment,andmedical and laser
applications at the Photonics West Exhibition, February 5-7 at The Moscone
Center in San Francisco, California. The company will showcase a very large
12-inch sapphire window in booth #2200 in the South Hall.

Sapphire is a desirable material for high-performance applications due to its
hardness and strength, transparency in the visible and IR spectrum, thermal
conductivity, thermal shock resistance, abrasion resistance, high melting
point and chemical inertness. As a result, it is ideally suited for extreme
environments where material durability is just as important as optical

Rubicon provides a wide range of sapphire products including sapphire cores,
ingots, windows and blanks as well as wafers in 4-inch, 6-inch and 8-inch
diameters. In addition to a very large 12-inch sapphire window, the company
will display its line of optical products including 85 kg boule, sapphire
tubes and rods, one small dome, and sapphire ingots at Photonics West.

Sapphire Applications in Industry

Defense & Aerospace -- Sapphire is used in the defense and aerospace
industries due to its broad transmission range in the UV through IR spectrum,
resistance to scratching and corrosion in sand or salt environments and impact
resistance. Applications include targeting systems and protected optics for
fighter jets, UAVs and helicopters, FLIRs and Enhanced Vision Systems for
aircraft, sensor suites and shaped optics for land, air and sea vehicles,
missile domes, countermeasure lamps and transparent armor systems.

Instrumentation & Analytical Processing --  Sapphire often replaces quartz and
glass to provide longer life in equipment and consumables. Sapphire's chemical
resistance, ability to withstand high temperature and high pressure, and
ability to transmit in UV and IR ranges make it ideal for applications in
instrumentation and analytical processing such as mass spectrometry,
spectrophotometry, digestive cells, and other analytical applications.

Sensors & Detectors -- Sapphire’s UV and IR transmission properties--in
combination with its ability to withstand harsh chemicals, high pressures and
temperatures--offer strong advantages for fire and IR detectors, protective
windows and thermocouple protection sheaths for remote sensors, and optics for
harsh environments such as oil-well drilling, chemical processing and other
industrial processes.

Semiconductor Process Equipment -- Sapphire’s durability and resistance to
fluorine chemistries and high-temperature process environments up to 2,000°C
offer advantages over materials such as quartz, alumina and other ceramics for
semiconductor process equipment. Sapphire often replaces these materials in
process chamber environments.

Medical & Laser -- Sapphire's optical transmission range, durability, ability
to be shaped into sharp-edged products and inertness with human tissue offer
advantages for specific medical laser applications for dermatology,
ophthalmology and dentistry. Sapphire products are also used for surgical
tools, implants, braces and in a variety of windows for medical equipment such
as endoscopes and lasers.

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


Garfield Group Public Relations
Beth Hespe, 215-867-8600 x235
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