Richard S. Hill Elected to Cabot Microelectronics' Board of Directors

Richard S. Hill Elected to Cabot Microelectronics' Board of Directors

Aurora, IL, June 4, 2012 (GLOBE NEWSWIRE) -- Cabot Microelectronics
Corporation, the leading supplier of chemical mechanical planarization (CMP)
polishing slurries and a growing pads supplier to the semiconductor industry,
is pleased to announce today the election of Richard S. Hill to the Company's
Board of Directors.

Mr. Hill,  60, is  retiring as  the Chairman  and Chief  Executive Officer  of 
Novellus Systems, Inc., in the wake of its recent acquisition by Lam  Research 
Corporation. Novellus manufactures, markets and services advanced deposition,
surface  preparation  and  chemical  mechanical  planarization  equipment  for 
advanced integrated circuits. Mr. Hill joined Novellus as its CEO in 1993 and
was appointed its Chairman in  1996, serving continuously in these  capacities 
until Novellus'  merger. Prior  to leading  Novellus, Mr.  Hill held  various 
senior leadership  and  management  positions with  Tektronix,  Inc.,  General 
Electric, Inc.,  Motorola, Inc.,  and  Hughes Aircraft,  Inc. Mr.  Hill  also 
serves on the Board of Directors of Arrow Electronics, Inc., LSI Logic  Corp., 
and  the  University  of  Illinois   Foundation.  He  received  a  B.Sc.   in 
bioengineering from  the University  of Illinois  and a  M.B.A. from  Syracuse 

"We are delighted to welcome Rick to  our Board of Directors and look  forward 
to  the  extensive  semiconductor  industry,  technology  and  public  company 
leadership experience  he  brings  to  us," said  William  P.  Noglows,  Cabot 
Microelectronics' Chairman  and Chief  Executive  Officer. "Rick's  vast  and 
well-respected background that he has amassed over the past almost 40 years in
a variety of companies  with customers, suppliers,  markets and cultures  that 
are also essential to our business complements well our existing Board, and we
look forward to his guidance and advice in the years to come."

Mr. Hill was elected today by the Board of Directors of the Corporation with a
term continuing until the Corporation's  annual meeting of stockholders to  be 
held in 2013. He also was appointed  a member of the Audit Committee and  the 
Compensation Committee of the Board of Directors. The Corporation's Board  of 
Directors has determined that Mr. Hill  is an independent director as  defined 
by relevant  regulations. The  current  size of  the Corporation's  Board  of 
Directors is nine.


Cabot Microelectronics Corporation, headquartered in Aurora, Illinois, is the
world's leading supplier of CMP polishing slurries and a growing CMP pad
supplier to the semiconductor industry. The company's products play a critical
role in the production of advanced semiconductor devices, enabling the
manufacture of smaller, faster and more complex devices by its customers. The
company's mission is to create value by developing reliable and innovative
solutions, through close customer collaboration, that solve today's challenges
and help enable tomorrow's technology. Since becoming an independent public
company in 2000, the company has grown to approximately 1,000 employees on a
global basis. For more information about Cabot Microelectronics Corporation,
visit or contact Trisha Tuntland, Manager of Investor
Relations at 630-499-2600.

CONTACT: Trisha Tuntland
         Manager, Investor Relations

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