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FSI International (ticker: FSII, exchange: NASDAQ) News Release - 6/21/05
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FSI International’s ANTARES® CryoKinetic Technology Continues To Build Worldwide Momentum at the 90nm Technology Node

Momentum highlighted by strong third quarter ANTARES System orders and shipments

MINNEAPOLIS (June 21, 2005) -- FSI International, Inc. (Nasdaq: FSII) today announced strong activity in the third quarter of fiscal 2005 from leading IC manufacturers in Europe, Asia-Pacific, Japan and the United States for its ANTARES® CryoKinetic Cleaning Systems. The adoption of the ANTARES system, traditionally used for back-end-of-line (BEOL) defect removal, continues to grow as more customers move 90nm device technologies into high-volume manufacturing.

In addition, recent innovations in the tool’s nozzle design and process capabilities extend the ANTARES system to front-end-of-line (FEOL) defect removal applications -- most notably, the removal of particles on fragile gate structures without any damage or etching of surface materials.

“The ANTARES system continues to gain momentum with new and repeat customers around the globe, and we anticipate this interest to grow as more 90nm device manufacturing moves into high volume and future technology nodes come online,” said Don Mitchell, FSI chairman and CEO. “CryoKinetic technology gives IC makers a reliable and proven approach to improving yields in advanced device manufacturing, where the advent of copper, porous low-k and other new materials and sensitive structures demand damage-free cleaning methods.”

More than 10 leading device manufacturers recognize the ANTARES system for its defect reduction and yield improvement benefits. During the third fiscal quarter, FSI received follow-on orders from several semiconductor manufacturers, shipped evaluation systems to prospective new customers, received an additional evaluation order after a successful lab demonstration and received an initial order from a new customer.

The ANTARES system is a fully automated, single-wafer, CryoKinetic platform for 300mm and 200mm wafers. The tools offer a field-proven history of removing surface particle defects and improving customer yields. The AspectClean™ process provides the defect reduction capability users need in advanced device processing. The ANTARES system provides an all-dry, nonreactive method of removing defects from FEOL and BEOL planar and patterned structures, including low-k structures, without damage and without altering the k value or physically damaging the interconnect, which delivers a clear advantage over traditional methods.

FSI International, Inc. is a global supplier of surface conditioning equipment technology and support services for microelectronics manufacturing. Using the Company’s broad portfolio of batch and single-wafer cleaning products, which include process technologies for immersion, spray, vapor and CryoKinetic, customers are able to achieve their process performance, flexibility and productivity goals.

The Company’s support services programs provide product and process enhancements to extend the life of installed FSI equipment, enabling worldwide customers to realize a higher return on their capital investment.

FSI maintains a Web site at http://www.fsi-intl.com.



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