Celerity Prevails in Patent Infringement Lawsuit Against Ultra Clean

MILPITAS, CA, June 26, 2007 – Celerity, Inc., a technology leader in precision instruments and advanced gas and liquid delivery solutions for the global semiconductor and electronics industries, announced today the U.S. District Court for the Northern District of California returned a verdict in favor of Celerity in it’s patent infringement suit against Ultra Clean Holdings, Inc. (NASDAQ: UCTT), and its subsidiary Ultra Clean Technology Systems and Service, Inc., Menlo Park, CA (“UCT”).

A unanimous jury validated Celerity’s U.S. Patent Nos. 6,435,215 and 6,394,138, and found that UCT’s Predator product line infringed Celerity’s patented modular gas delivery technology. Celerity was awarded monetary damages based on UCT’s sale of the infringing Predator product. The next phase of the trial will occur later this year as Celerity seeks a permanent injunction from the court barring UCT from further infringement of Celerity’s patented technology.

“We are very pleased with the decision of the lawsuit” said Joe Foster, chief technology officer and senior vice president at Celerity. “Celerity is built on a strong foundation of innovative technology and intellectual property that has served as an enabling platform for next generation 300mm semiconductor manufacturing solutions. We now hold approximately 150 patents in our worldwide intellectual property portfolio and have dozens of patent applications pending. The company will continue to license its modular substrate technology under appropriate circumstances to stimulate broad commercialization of this technology for the benefit of our customers. The unanimous verdict recognizes Celerity’s patent portfolio and the value of our licensing program. We have always believed in the strength of our intellectual property portfolio and remain confident of our position as we move toward the injunctive phase of the court proceeding.”

Celerity’s patented modular gas delivery technology is used in semiconductor manufacturing and other related industries requiring high precision process control.

About Celerity

Celerity is a recognized industry leader in the design, engineering, and manufacturing of precision instruments and advanced gas and liquid delivery solutions for the global semiconductor and related electronics markets. Celerity, headquartered in Milpitas, California, has over 1300 employees worldwide, and is a privately held company with a majority ownership by Texas Pacific Group. For additional information, please visit www.celerity.net.

CONTACTS

Industry Media Inquiries

Carol Kimura
Director of Corporate Marketing
Phone: +1 408 946 3100
Email: ckimura@celerity.net

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Vice President of Finance
Phone: +1 408 946 3100
E-mail: rlacey@celerity.net

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CMX Series
The Celerity CMX series capacitance manometers combines Celerity’s patented contamination resistant sensor technology with advanced digital electronics for improved calibration, real-time compensation and enabling diagnostic and maintenance features.
Benefits:
  • Advanced digital architecture with embedded diagnostics
  • 65 point digital calibration
  • Intelli-Touch Zero feature
  • Digital temperature control
  • Contamination resistant sensor
  • Intuitive Software enables preventative maintenance