EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (File No. 333-92443) of Rudolph Technologies, Inc., of our report dated January 28, 2000, relating to the financial statements and financial statement schedule, which appears in this annual report on Form 10- K. /s/ PricewaterhouseCoopers LLP Florham Park, New Jersey March 23, 2000