Exhibit 99.4
Dear Valued Customer,
I wanted to reach out to share some exciting news. Today, Nanometrics and Rudolph announced an agreement to merge. Together, we’ll be a premierend-to-end metrology, inspection, process control software, and lithography equipment provider for the semiconductor industry and other advanced markets. You can find the press release announcing the news and additional details on our respective websites.
We firmly believe this combination will provide significant benefits for all of our stakeholders, including our customers. By bringing togetherfront-end metrology with inspection solutions, the new company will have the opportunity to offer more comprehensive process control solutions to the world’s leading semiconductor device manufacturers. We believe you will benefit from the increased scope and scale of the combined global organization. Together we will be able to better serve you with a broader support team, and a broader technology team and IP portfolio. As a result we expect to be a better partner. Together, we will be able to provide accelerated product and process development to better serve you.
With increased scale and portfolio diversification, the combined company will be able to provide improved device yield at reduced manufacturing cycle time, supporting the accelerated product life cycles in the semiconductor and other advanced markets.
We’re excited about our future, but for now, nothing changes. Until the transaction closes – which we expect will be in the second half of 2019 — it is business as usual, and both companies will continue to operate as separate entities. For now, your point of contact remains the same. If this should change after the merger closes, you will be notified promptly.
We remain focused on providing you with the highest quality services you’ve come to expect and will keep youup-to-date as much as we can along the way. Thank you for your continued support.
Sincerely,
Michael Plisinski
Forward-Looking Statements
This communication contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties and are made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1993, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The words “believe” “continue,” “could,” “expect,” “anticipate,” “intends,” “estimate,” “forecast,” “project,” “should,” “may,” “will,” “would” or the negative thereof and similar expressions are intended to identify such forward-looking statements. These forward-looking statements are only predictions and involve known and unknown risks and uncertainties, many of which are beyond the control of Nanometrics Incorporated (“Nanometrics”) and Rudolph Technologies, Inc. (“Rudolph”).