KLA-Tencor / ADE Acquisition Receives German Antitrust Clearance

  
    
  
  
    
      KLA-Tencor Corporation (Nasdaq:KLAC) and ADE Corporation (Nasdaq:ADEX) 
      announced that the acquisition of ADE by KLA-Tencor has received the 
      approval of German antitrust authorities and that the previously 
      announced Phase II investigation of the acquisition has been closed. The 
      acquisition has already been cleared by the antitrust authorities in the 
      United States and in all other applicable jurisdictions. In addition, ADE’s 
      stockholders approved the acquisition on July 13, 2006. The parties 
      expect the merger to close on October 11, 2006.
    
    
      About ADE Corporation:
    
    
      ADE Corporation is a leading supplier of metrology and inspection 
      systems for the semiconductor wafer, semiconductor device, magnetic data 
      storage and optics manufacturing industries. Wafer suppliers and device 
      manufacturers worldwide rely on ADE measurement and inspection systems 
      to certify and ensure the highest quality bare silicon substrates. ADE’s 
      most recent generation of products serve both 65nm in-line manufacturing 
      applications and 45nm process development. Semiconductor device yields 
      begin with the bare wafer, and ADE’s leading 
      technology provides early insight into surface defect, shape, flatness 
      and nanotopography of these advanced 300mm substrates. Additional 
      information about ADE is available on the Internet at http://www.ade.com, 
      which website is not part of this press release.
    
    
      About KLA-Tencor:
    
    
      KLA-Tencor is the world leader in yield management and process control 
      solutions for semiconductor manufacturing and related industries. 
      Headquartered in San Jose, Calif., the company has sales and service 
      offices around the world. An S&P 500 company, KLA-Tencor is traded on 
      the NASDAQ Global Select Market under the symbol KLAC. Additional 
      information about the company is available on the Internet at http://www.kla-tencor.com, 
      which website is not part of this press release.
    
    
      Cautionary Statement Regarding Forward-Looking Statements
    
    
      This news release contains certain forward-looking statements within 
      the meaning of the “safe harbor” 
      provisions of the United States Private Securities Litigation Reform Act 
      of 1995 and federal securities law. Such forward-looking 
      statements are subject to known and unknown risks and uncertainties that 
      could cause actual results to differ materially from those expressed or 
      implied by such statements. Those statements that make reference 
      to expectations, predictions, beliefs, and assumptions should be 
      considered forward-looking statements. These statements include, 
      but are not limited to, those associated with the expected closing time 
      for the proposed merger. These statements involve risks and 
      uncertainties including those associated with failure to consummate or 
      delay in consummating the proposed merger, changes in laws or 
      regulations and other similar factors. Further information on potential 
      factors that could affect KLA-Tencor’s or ADE 
      Corporation’s respective businesses is 
      contained in their reports on file with the Securities and Exchange 
      Commission, including their respective Form 10-K’s. 
      Except as otherwise required by applicable law, KLA-Tencor and ADE are 
      under no obligation to (and expressly disclaim any such obligation to) 
      update or alter their respective forward-looking statements whether as a 
      result of new information, future events or otherwise.
    
  
KLA-Tencor Corporation (Nasdaq:KLAC) and ADE Corporation
(Nasdaq:ADEX) announced that the acquisition of ADE by KLA-Tencor has
received the approval of German antitrust authorities and that the
previously announced Phase II investigation of the acquisition has
been closed. The acquisition has already been cleared by the antitrust
authorities in the United States and in all other applicable
jurisdictions. In addition, ADE's stockholders approved the
acquisition on July 13, 2006. The parties expect the merger to close
on October 11, 2006.

   About ADE Corporation:

   ADE Corporation is a leading supplier of metrology and inspection
systems for the semiconductor wafer, semiconductor device, magnetic
data storage and optics manufacturing industries. Wafer suppliers and
device manufacturers worldwide rely on ADE measurement and inspection
systems to certify and ensure the highest quality bare silicon
substrates. ADE's most recent generation of products serve both 65nm
in-line manufacturing applications and 45nm process development.
Semiconductor device yields begin with the bare wafer, and ADE's
leading technology provides early insight into surface defect, shape,
flatness and nanotopography of these advanced 300mm substrates.
Additional information about ADE is available on the Internet at
http://www.ade.com, which website is not part of this press release.

   About KLA-Tencor:

   KLA-Tencor is the world leader in yield management and process
control solutions for semiconductor manufacturing and related
industries. Headquartered in San Jose, Calif., the company has sales
and service offices around the world. An S&P 500 company, KLA-Tencor
is traded on the NASDAQ Global Select Market under the symbol KLAC.
Additional information about the company is available on the Internet
at http://www.kla-tencor.com, which website is not part of this press
release.

   Cautionary Statement Regarding Forward-Looking Statements

   This news release contains certain forward-looking statements
within the meaning of the "safe harbor" provisions of the United
States Private Securities Litigation Reform Act of 1995 and federal
securities law. Such forward-looking statements are subject to known
and unknown risks and uncertainties that could cause actual results to
differ materially from those expressed or implied by such statements.
Those statements that make reference to expectations, predictions,
beliefs, and assumptions should be considered forward-looking
statements. These statements include, but are not limited to, those
associated with the expected closing time for the proposed merger.
These statements involve risks and uncertainties including those
associated with failure to consummate or delay in consummating the
proposed merger, changes in laws or regulations and other similar
factors. Further information on potential factors that could affect
KLA-Tencor's or ADE Corporation's respective businesses is contained
in their reports on file with the Securities and Exchange Commission,
including their respective Form 10-K's. Except as otherwise required
by applicable law, KLA-Tencor and ADE are under no obligation to (and
expressly disclaim any such obligation to) update or alter their
respective forward-looking statements whether as a result of new
information, future events or otherwise.