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EXHIBIT 32.1
CERTIFICATIONS 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
I, Arthur Zafiropoulo, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:
•
the Annual Report of Ultratech, Inc. on Form 10-K for the year ended December 31, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
•
the information contained in such Annual Report fairly presents in all material respects the financial condition and results of operations of Ultratech, Inc.
By:
/s/    ARTHUR ZAFIROPOULO        
  
Date:
February 26, 2016
Name:
Arthur Zafiropoulo
  
 
 
Title:
Chief Executive Officer
  
 
 
I, Bruce Wright, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:
•
the Annual Report of Ultratech, Inc. on Form 10-K for the year ended December 31, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
•
the information contained in such Annual Report fairly presents in all material respects the financial condition and results of operations of Ultratech, Inc.
By:
/s/    BRUCE WRIGHT        
 
Date:
February 26, 2016
Name:
Bruce Wright
 
  
 
Title:
Chief Financial Officer