AIXTRON AG EXECUTIVE BOARD PREDICTING A RETURN TO PROFITABILITY AND 33 % REVENUE GROWTH IN 2004

!!! Press Release !!!

AIXTRON AG Executive Board predicting a return to
profitability and 33 % revenue growth in 2004

Aachen, May 11, 2004 - AIXTRON, the global market and technology leader for MOCVD (metal organic chemical vapor deposition) equipment - the key technology in the manufacture of compound semiconductors and other complex materials systems - reported the 2003 financial results and presented the Executive Board´s view of the current business environment and outlook. The Board predicted a 33 % growth in revenues during 2004 and a net profit of break even in the year, € 0.0m, reflecting a significant increase in R&D spending as the new targeted markets begin to emerge.

The General Meeting approved all proposals by the Administration, including the renewed authorization to buy back own AIXTRON shares. The voting results and the agenda are available on AIXTRON's web site (www.aixtron.com).

AIXTRON's CEO Paul Hyland: "It is encouraging, after two very difficult years for the technology sector, to see some very positive signals from our customers. We believe we are well placed to be able to respond to the recovery of our existing markets and to develop the exciting new Silicon and Display product markets.

In developing these new markets, we will be pursuing two key strategies; reducing risk by extending the markets where we can sell our technology and increasing shareholder value in the process. We fully intend to build on what has become the most promising outlook for more than two years."

For further information please contact:

Investor Relations and Corporate Communications
AIXTRON AG
Kackertstr. 15 - 17
D-52072 Aachen, Germany
Phone:+49 241 8909 444
Fax: +49 241 8909 445
E-mail: invest@aixtron.com