MKS Instruments Announces Investor Meetings and Technical Presentations at Semicon West

ANDOVER, Mass., June 22, 2010 /PRNewswire via COMTEX/ --MKS Instruments, Inc. (Nasdaq: MKSI), a leading global provider of critical technologies to improve productivity in advanced, high growth markets, announced today that Leo Berlinghieri, CEO and President, will be available for investor meetings during Semicon West, July 13-15, 2010. To schedule a meeting, contact Janet Giddings at 978-645-5530 or email janet_giddings@mksinst.com.

MKS will also be presenting four technical sessions at Moscone during show hours on both July 13 and 14, 2010. Topics include Embedded Applications for IO Devices, Developments in Flow Ratio Control and Verification Technologies, Arc Detection in RF Plasma Processing, and Trends in Wet Wafer Processing Using Dissolved Gases. Email georgia_dristiliaris@mksinst.com or call 978-645-5515 to reserve a seat.

MKS Instruments, Inc. is a leading, global provider of technologies to power, control, deliver, monitor, measure and analyze advanced processes in high growth applications. Our primary served markets are manufacturers of capital equipment for thin film applications including semiconductor devices, flat panel displays, light emitting diodes (LEDs), solar cells, data storage media and coatings, as well as medical equipment; energy generation and environmental monitoring processes; biopharm and other industrial manufacturing; and university, government and industrial research laboratories.

SOURCE MKS Instruments, Inc.