INFICON will announce its 4Q02 results during a conference call on Wednesday, February 19, 2003, beginning at 10:00 a.m. EST. The call will be available via a live audio webcast.

Syracuse, New York/Zurich, Switzerland - January 16, 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, will issue a press release announcing its fiscal 2002 fourth quarter financial results at approximately 7:00 a.m. CET/1:00 a.m. EST on Wednesday, February 19, 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 +1.703.871.3026 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, http://www.inficon.com.

On the call, James Brissenden, president and chief executive officer, and Peter Maier, chief financial officer, will review the financial results of the fourth quarter and fiscal year ended December 31, 2002. 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. EST on February 19 through 5:00 a.m. CET on February 27/11:00 p.m. EST on February 26, 2003. To access the replay, please dial +1.888.266.2081 (international callers dial +1.703.925.2533), reservation number 6385363. Also, an archived replay of the conference webcast will be available on the INFICON website.

ABOUT INFICON
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 www.inficon.com.