Ranking based on Revenue, Revenue Growth, Shareholder Return and Return on Equity in 2002

GENEVA, SWITZERLAND - June 20, 2003 - STMicroelectronics (NYSE:STM) was one of three silicon chip manufacturers to be named in BusinessWeek's "Infotech 100" annual ranking of top technology companies. The Business Week ranking is based on revenue, revenue growth, shareholder return, and return on equity, with total revenue weighted 1.5 times the weighting of the other criteria. ST's 2002 performance placed it 92nd behind Intel (82nd) and ahead of Taiwanese foundry TSMC (94th). No other pure-play semiconductor manufacturer from any part of the world made the top 100 list.

Of STMicroelectronics, BusinessWeek says, "It pays to diversify: the world's No. 3 chipmaker is outpacing rivals thanks to its broad product range and steady investments."

Since its formation in 1987, when it was ranked 15th in the world semiconductor league, ST has consistently grown faster than the semiconductor market and is now a solid member of the world's top five chip giants. This standing has been achieved by investing an average of 14% of its net revenues in research and development, consistently above the industry average, and by forming close relationships with key customers in diverse industries such as telecom, computer peripherals, consumer equipment, and automotive. Emphasizing R&D and broad customer relationships, ST has positioned itself at the forefront of System-on-Chip technology and is a key enabler of the convergence phenomenon such as between mobile telephony and computing, which is now driving the market evolution.

Commenting on ST's inclusion in the "Infotech 100" list, Alain Dutheil, Corporate VP Strategic Planning and Human Resources, said, "Along with the increasing pervasiveness of microelectronics, continual advances in semiconductor technology help drive the growth of all industries that use electronics. We are proud to join top customers such as HP, Nokia, Pioneer, Samsung, Seagate, and Western Digital, on this prestigious list and we are delighted to think that our solutions may have contributed to their success."

About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2002, the Company's net revenues were $6.32 billion and net earnings were $429.4 million. Further information on ST can be found at http://www.st.com.