SAN DIEGO, Feb. 16 -- Cymer Inc. has completed its all-stock acquisition of Active Control eXperts (ACX) for slightly more than 1 million shares of Cymer common stock. ACX is now a wholly owned subsidiary of Cymer. Based in Cambridge, Mass., ACX provides hardware, software and firmware solutions for vibration and nano-motion control. The technology can be physically embedded, creating adaptive "smart structures" to intrinsically improve the stability and precision of nano-motion control in next-generation semiconductor capital equipment. "We are pleased to have the talented and dedicated ACX team join our Cymer organization," said Robert Akins, Cymer's chairman and CEO. "We believe ACX's technology will enable solutions for a large number of stability and control challenges faced by the equipment industry and, thereby, will extend Cymer's opportunity and product offerings into the field of adaptive precision motion diagnostics and control."