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10-Q - FORM 10-Q - MKS INSTRUMENTS INCb83364e10vq.htm
EX-31.2 - EX-31.2 - MKS INSTRUMENTS INCb83364exv31w2.htm
EX-31.1 - EX-31.1 - MKS INSTRUMENTS INCb83364exv31w1.htm
EXCEL - IDEA: XBRL DOCUMENT - MKS INSTRUMENTS INCFinancial_Report.xls
EXHIBIT 32.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
          In connection with the Quarterly Report on Form 10-Q of MKS Instruments, Inc. (the “Company”) for the period ended June 30, 2011, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Leo Berlinghieri, Chief Executive Officer and President of the Company, and Seth H. Bagshaw, Vice President, Chief Financial Officer and Treasurer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, based on his knowledge:
  (1)   the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
 
  (2)   the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
         
Dated: August 5, 2011  /s/ Leo Berlinghieri    
  Leo Berlinghieri   
  Chief Executive Officer and President   
 
Dated: August 5, 2011  /s/ Seth H. Bagshaw    
  Seth H. Bagshaw   
  Vice President, Chief Financial Officer and Treasurer