MKS Instruments (MKSI)

ANDOVER, Mass., Jan. 17, 2012 (GLOBE NEWSWIRE) -- MKS Instruments, Inc. (Nasdaq:MKSI), a global provider of technologies that enable advanced processes and improve productivity, today announced that it will release fourth quarter and full year 2011 financial results after market close on Wednesday, February 1, 2012. A conference call with management will be held on Thursday, February 2, 2012 at 8:30 a.m. (Eastern Time).  To participate in the conference call, please dial (877) 212-6076 for domestic callers and (707) 287-9331 for international callers, and an operator will connect you. Participants will need to provide the operator with the Conference ID of 40616915, which has been reserved for this call.  A live and archived webcast of the call will be available on the company's website at www.mksinst.com. 

About MKS Instruments

MKS Instruments, Inc. is a global provider of instruments, subsystems and process control solutions that measure, control, power, monitor and analyze critical parameters of advanced manufacturing processes to improve process performance and productivity. Our products are derived from our core competencies in pressure measurement and control, materials delivery, gas composition analysis, control and information technology, power and reactive gas generation, and vacuum technology. Our primary served markets are manufacturers of capital equipment for semiconductor devices, and for other thin film applications including flat panel displays, solar cells, light emitting diodes, data storage media, and other advanced coatings. We also leverage our technology in other markets with advanced manufacturing applications including medical equipment, pharmaceutical manufacturing, energy generation, and environmental monitoring.

CONTACT: Seth H. Bagshaw
         Vice President, Chief Financial Officer & Treasurer
         (978) 645-5578