EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-462 and 333-12473) of Tegal Corporation of our report dated April 24, 1998 appearing on page 40 of Tegal Corporation's Annual Report on Form 10-K. We also consent to the incorporation by reference of our report on the Financial Statement Schedule, which appears on page S-2 of this Annual Report on Form 10K. /s/ Price Waterhouse LLP San Jose, California May 18, 1998