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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 Form 10-K/A
 Amendment No. 1
 FOR ANNUAL AND TRANSITION
REPORTS PURSUANT TO SECTIONS 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 (Mark One)
 þ
    
    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
 For the fiscal year ended December 31, 2004
 OR
 o
    
    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
 For the transition period from            to
 Commission File Number 000-17157
 Novellus Systems, Inc.
  California
(State or other jurisdiction of
incorporation of organization)
    
    77-0024666
(I.R.S. Employer
Identification Number)
 4000 North First Street, San Jose, California 95134
 (408) 943-9700
  None
 Common Stock, no par value
 R £
 R
 R £
 £ R
   Documents Incorporated by Reference:




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TABLE OF CONTENTS




|                 |                                                     |  |  |  |  |  |  | 
|---------------- | --------------------------------------------------- |  |  |  |  |  |  | 
|EXPLANATORY NOTE
|PART IV         
|                 | Item 15. Exhibits and Financial Statement Schedules
|SIGNATURES      
|EXHIBIT INDEX   
|EXHIBIT 32.1.1  
|EXHIBIT 32.2.1  



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EXPLANATORY NOTE







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PART IV





Item 15. Exhibits and Financial Statement Schedules




32.1.1
    
    Certification of Richard S. Hill, Chairman of the Board
of Directors and Chief Executive Officer of Novellus
Systems, Inc. dated as of August 31, 2005 in accordance with
18 U.S.C. 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002.32.2.1
    
    Certification of John Chenault, Vice President and Chief
Financial Officer of Novellus Systems, Inc. dated as of August
31, 2005 in accordance with 18 U.S.C. 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.






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SIGNATURES
  NOVELLUS SYSTEMS, INC.By:
    /s/  Richard S. HillRichard S. HillChairman of the Board of Directors
and Chief Executive Officer  Signature
    
    Title
    
    Date/s/  Richard S. Hill

Richard S. Hill
    
    Chairman of the Board of Directors and Chief
Executive Officer (Principal Executive Officer)
    
    September 12, 2005/s/  William H. Kurtz

William H. Kurtz
    
    Executive Vice President and Chief Financial Officer
(Principal Financial Officer and
Principal Accounting Officer)
    
    September 12, 2005*

Neil R. Bonke
    
    Director
    
    September 12, 2005*

Youssef A. El-Mansy
    
    Director
    
    September 12, 2005*

J. David Litster
    
    Director
    
    September 12, 2005*

Yoshio Nishi
    
    Director
    
    September 12, 2005*

Glen G. Possley
    
    Director
    
    September 12, 2005*

Ann D. Rhoads
    
    Director
    
    September 12, 2005*

William R. Spivey
    
    Director
    
    September 12, 2005*

Delbert Whitaker
    
    Director
    
    September 12, 2005 *By:

/s/ Richard S. HillRichard S. HillAttorney in fact




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EXHIBIT INDEX


ExhibitNo.
    
    Description32.1.1
    

Certification of Richard S. Hill, Chairman of the Board
of Directors and Chief Executive Officer of Novellus
Systems, Inc. dated as of August 31, 2005 in accordance with
18 U.S.C. 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002.32.2.1
    
    Certification of John Chenault, Vice President and Chief
Financial Officer of Novellus Systems, Inc. dated as of August
31, 2005 in accordance with 18 U.S.C. 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.