QED Technologies Honored with R&D 100 Award for Innovative Metrology Tool

ROCHESTER, N.Y.–(EMWNews)–QED Technologies, a wholly owned subsidiary of Cabot Microelectronics

Corporation (NASDAQ: CCMP), has been named as a recipient of the R&D 100

Award for 2008. This prestigious award is granted by R&D Magazine for

the 100 most technologically significant products introduced into the

marketplace in the past year. The winning new product, “Subaperture

Stitching Interferometer for Aspheres (SSI-A^®)”,

cites QED Technologies’ SSI-A^®

technology as a turnkey precision measurement tool uniquely capable of

measuring complex surfaces.

With the SSI-A^®, QED

has introduced a break-through metrology product that will help to

redefine optics manufacturing capabilities. For the first time, optics

manufacturers can obtain measurements of a wide variety of spheres,

flats and aspheres with one turnkey system. The SSI-A^®

has been adopted widely across Asia, Europe and North America for its

unique ability to automatically take full-aperture, highly accurate

measurements without the use of dedicated null lenses.

This is the second consecutive year that QED Technologies has been

honored with the R&D 100 Award. Last year, QED Technologies, in

conjunction with Lawrence Livermore National Laboratory and Zygo

Corporation, was recognized for its magnetorheological finishing (MRF^®)

application in producing precision optics for laser fusion. MRF^®

and SSI-A^®

technologies are highly complementary modification and measurement

technologies, enabling users to achieve breakthrough precision in the

manufacture of optical components.

“We are honored by this recognition”,

says Marc Tricard, Director of Business Development for QED. “There

is an adage in the optics industry that says, “If

you can’t measure it, you can’t

make it”. With the SSI-A, optics

manufacturers can now measure their products—spheres,

flats and aspheres—with confidence. This one

tool enables optics manufacturers to expand their product line while

streamlining the production process. In turn, optics systems designers

can be much more creative knowing that the optics components can be

measured with accuracy.”

ABOUT QED TECHNOLOGIES

Since it was founded in 1996, QED Technologies, based in Rochester, NY,

has built a reputation for producing high quality products based on

revolutionary, patented technology, advanced computer numerical control

machines and world-class software to provide shop-ready solutions for

nearly any precision optics manufacturing need. QED offers

state-of-the-art finishing and metrology solutions that are designed to

meet the needs of advanced optics manufacturers by increasing production

speed and yield while decreasing costs. QED is dedicated to providing

revolutionary technical solutions that enable or significantly enhance

its customers’ capabilities and positively

impact their bottom line. QED Technologies is a wholly-owned subsidiary

of Cabot Microelectronics Corporation (NASDAQ:CCMP). For more

information about QED Technologies, visit www.qedmrf.com

or contact Robin Townell, Marketing Manager, at (585) 256-6540 ext. 241.

ABOUT CABOT MICROELECTRONICS CORPORATION

Cabot Microelectronics Corporation, headquartered in Aurora, Illinois,

is the world’s leading supplier of CMP slurries used in semiconductor

and data storage manufacturing. The company’s products play a critical

role in the production of the most advanced semiconductor devices,

enabling the manufacture of smaller, faster and more complex devices by

its customers. Since becoming an independent public company in 2000, the

company has grown to approximately 800 employees on a global basis. The

company’s vision is to become the world leader in shaping, enabling and

enhancing the performance of surfaces, so the company is leveraging its

expertise in CMP slurry formulation, materials and polishing techniques

developed for the semiconductor industry and applying it to demanding

surface modification applications in other industries where shaping,

enabling and enhancing the performance of surfaces is critical to

success. For more information about Cabot Microelectronics Corporation,

visit www.cabotcmp.com or contact

Amy Ford, Director of Investor Relations at (630) 499-2600.

SAFE HARBOR STATEMENT

This news release may include statements that constitute “forward

looking statements” within the meaning of federal securities

regulations. These forward-looking statements include statements related

to: future sales and operating results; company and industry growth or

trends; growth of the markets in which the company participates;

international events; product performance; the generation, protection

and acquisition of intellectual property, and litigation related to such

intellectual property; new product introductions; development of new

products, technologies and markets; the acquisition of or investment in

other entities; uses and investment of the company’s

cash balance; and the construction of facilities by Cabot

Microelectronics Corporation. These forward-looking statements involve a

number of risks, uncertainties, and other factors, including those

described from time to time in Cabot Microelectronics’ filings with the

Securities and Exchange Commission (SEC), that could cause actual

results to differ materially from those described by these

forward-looking statements. In particular, see “Risk Factors” in the

company’s quarterly report on Form 10-Q for

the quarter ended March 31, 2008 and in the company’s

annual report on Form 10-K for the fiscal year ended September 30, 2007,

both filed with the SEC. Cabot Microelectronics assumes no obligation to

update this forward-looking information.

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