Milpitas, California. July 31, 2006.

Nanometrics Announces Upcoming Investor Conference Events

Nanometrics Incorporated (Nasdaq: NANO), a leading supplier of advanced integrated and standalone metrology equipment to the semiconductor industry, today announced that Nanometrics management is currently scheduled to participate in the following investor conferences:

Pacific Crest 8th Annual Technology Forum
Sonnenalp Resort, Vail, CO
Date: August 7, 2006
Presentation Time: 11:30 a.m. ET

Canaccord Adams 26th Annual Summer Seminar
Boston Marriott Long Wharf Hotel, Boston, MA
Date: August 9, 2006
Presentation Time: 9:30 a.m. ET

RBC Capital Markets North American Technology Conference
The Four Seasons Hotel, San Francisco, CA
Date: August 10, 2006
Presentation Time: 1:00 p.m. ET

Nanometrics will post presented slides, and an audio-only webcast of each presentation will be made available, on Nanometrics’ IR web page (at www.nanometrics.com) and also on the individual conference websites.

About Nanometrics
Nanometrics is a leader in the design, manufacture and marketing of high-performance process control metrology systems used in semiconductor manufacturing. Nanometrics metrology systems measure various thin film properties, critical circuit dimensions and layer-to-layer circuit alignment (overlay) during various steps of the manufacturing process, enabling semiconductor and integrated circuit manufacturers to improve yields, increase productivity and lower their manufacturing costs. Nanometrics maintains its headquarters in Milpitas, California, with sales and service offices worldwide. Nanometrics is traded on the Nasdaq Global Market under the symbol NANO. Nanometrics’ website is: http://www.nanometrics.com.

Contact:
Doug McCutcheon
Nanometrics
408.435.9600