INFICON Announces Date of First Quarter 2003 Results

Syracuse, New York/Zurich, Switzerland - April 1, 2003 - INFICON Holding AG (SWX Swiss Exchange and NASDAQ: IFCN), a leading manufacturer of vacuum instrumentation and process control software for the semiconductor and related industries and other industrial applications, will issue a press release announcing its first quarter results at approximately 7:00 a.m. CET/1:00 a.m. EDT on Wednesday, April 23, 2003. A conference call has been scheduled for 4:00p.m. CET/10:00 a.m. EST that same day. To access the conference call, please dial +1.703.871.3021 at least 10 minutes prior to the call. A live webcast of the conference call will also be available in the Investor Relations section of the INFICON website,

On the call, James Brissenden, president and chief executive officer, and Peter Maier, chief financial officer, will review the financial results for the quarter ended March 31, 2003. In addition, management will be available for questions from the investment community.

A replay of the call will be available from 7:00 p.m. CET/1:00 p.m. EDT on April 23rd through
5:00 a.m. CET on May 1/11:00 p.m. EDT on April 30, 2003. To access the replay, please dial +1.888.266.2081 (international callers dial +1.703.925.2533), reservation number 6465390. Also, an archived replay of the conference webcast will be available on the INFICON website.

INFICON is a leading developer, manufacturer and supplier of innovative vacuum instrumentation, critical sensor technologies, and process control software for the semiconductor and related industries. These analysis, measurement and control products are vital to original equipment manufacturers (OEMs) and end-users in the complex manufacturing of semiconductors, flat panel displays, magnetic and optical storage media and precision optics. INFICON also provides essential instrumentation for gas leak detection and toxic chemical analysis to the air conditioning/refrigeration, emergency response and industrial hygiene markets. Headquartered in Syracuse, New York, INFICON has manufacturing facilities in the United States and Europe and worldwide offices in the U.S., China, France, Germany, Japan, Korea, Liechtenstein, Singapore, Switzerland, Taiwan, and the United Kingdom. For more information about INFICON and its products, please visit the Company's website at

Corporate Contact:
Betty Ann Kram
Director of Corporate Communications
and Investor Relations

European Contact:
Bernhard Schweizer/Sara Koch
c-matrix group ag
+41 (0) 41.769.80.40

North American Contact:
Jody Burfening/Kathy Price
Lippert/Heilshorn & Associates, Inc.