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Richard Beck
Advanced Energy Industries, Inc.
Cathy Kawakami
Advanced Energy Industries, Inc.

Advanced Energy Completes Sekidenko Acquisition

Fort Collins, Colorado (August 21, 2000)-Advanced Energy Industries, Inc. (Nasdaq: AEIS), today announced the completion of its acquisition of Sekidenko, Inc. on August 18, 2000 in an exchange of stock. The transaction will be accounted for as a pooling of interests.


Sekidenko, a privately-held company, is the dominant supplier of Optical Fiber Thermometers (OFTs) to the semiconductor capital industry for use in measuring the temperature of semiconductor wafers during the manufacturing process. The company will retain its Vancouver, Washington headquarters as a wholly-owned subsidiary of Advanced Energy.

"The acquisition of Sekidenko extends our product line to include industry-leading temperature metrology solutions, and increases the size of our total available market," said Doug Schatz, Chairman and Chief Executive Officer. "We will integrate Sekidenko's technologies into our product offerings to continue to provide additional value to our OEM customers."

About Advanced Energy
Advanced Energy is a global leader in the development, marketing, and support of technology solutions that are critical in the manufacture of semiconductors, data storage products, and flat panel displays as well as other mission-critical power applications. Original equipment manufacturers (OEMs) and end-users around the world depend on AE products when plasma-based technology plays a vital role in the manufacturing process. AE offers a comprehensive suite of key subsystems for vacuum process systems including power conversion and control solutions, process monitoring and machine control tools, ion-beam sources, dynamic temperature products and plasma abatement technologies. AE technology solutions are sold and supported globally by direct offices, representatives and distributors. Founded in 1981, AE is a publicly held company traded on Nasdaq under the symbol AEIS.

Safe Harbor Statement
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements represent the companies' reasonable judgments with respect to future events, but are subject to risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. Among the factors that could cause such different results are: we might not be able to integrate the companies' operations successfully; integration of the companies' operations could result in unanticipated costs or substantial diversion of management's attention; and the projections on which the companies relied to determine the advisability of the merger ultimately might not prove to have been accurate. These and other cautionary statements are set forth in Advanced Energy's SEC reports, including annual reports on Form 10-K and quarterly reports on Form 10-Q. Advanced Energy assumes no obligation to update the information in this press release.