Revenue during the quarter grew 11.62 percent to $60.68 million from $54.36 million in the previous year period. Gross margin for the quarter contracted 91 basis points over the previous year period to 52.52 percent. Total expenses were 84.04 percent of quarterly revenues, up from 61.12 percent for the same period last year. That has resulted in a contraction of 2292 basis points in operating margin to 15.96 percent.

Operating income for the quarter was $9.68 million, compared with $21.14 million in the previous year period.

However, the adjusted operating income for the quarter stood at $12.22 million compared to $9.57 million in the prior year period. At the same time, adjusted operating margin improved 253 basis points in the quarter to 20.14 percent from 17.60 percent in the last year period.

Michael Plisinski, chief executive officer, commented, "We continue to see strong demand for our broad-based technical solutions, which has resulted in our eleventh straight quarter of year-over-year quarterly growth. First quarter revenues exceed guidance and grew 12 percent both sequentially and on a year-over-year basis; and gross margins expanded to 53 percent, fueled by process control sales across multiple high-growth markets."

For the second-quarter, Rudolph Technologies, Inc. expects revenue to be in the range of $63 million to $68 million. The company projects diluted earnings per share to be in the range of $0.23 to $0.29. On an adjusted basis, the company projects diluted earnings per share to be in the range of $0.28 to $0.34.