Attached files

file filename
10-K - 10-K - MKS INSTRUMENTS INCd114808d10k.htm
EX-32.1 - EX-32.1 - MKS INSTRUMENTS INCd114808dex321.htm
EX-31.2 - EX-31.2 - MKS INSTRUMENTS INCd114808dex312.htm
EX-31.1 - EX-31.1 - MKS INSTRUMENTS INCd114808dex311.htm
EX-21.1 - EX-21.1 - MKS INSTRUMENTS INCd114808dex211.htm
EX-10.29 - EX-10.29 - MKS INSTRUMENTS INCd114808dex1029.htm
EX-4.2 - EX-4.2 - MKS INSTRUMENTS INCd114808dex42.htm
EX-4.1 - EX-4.1 - MKS INSTRUMENTS INCd114808dex41.htm

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-34450 and 333-109753) and Form S-8 (Nos.333-78069, 333-78071, 333-78073, 333-31224, 333-54486, 333-54488, 333-54490, 333-90498, 333-90500, 333-90502, 333-116385, 333-116387, 333-116389, 333-127221, 333-161211, 333-195750, 333-211026, and 333-229483) of MKS Instruments, Inc. of our report dated February 28, 2020 relating to the consolidated financial statements and financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

February 28, 2020