ONTO INNOVATION INC.

Onto Innovation Inc. (NASDAQ: ONTO) is a worldwide leader in the design, development, manufacture and support of metrology and inspection tools for the semiconductor industry. The company's website is located at http://www.ontoinnovation.com.

The company provides process control and yield management solutions used across semiconductor manufacturing, serving silicon wafer manufacturers, integrated circuit fabricators, and advanced packaging manufacturers. Onto Innovation's product portfolio spans optical metrology systems, macro defect inspection tools, advanced packaging lithography systems, and process control analytical software. The company's automated metrology systems include the Atlas family for optical critical dimension and thin film metrology, while integrated metrology systems such as the IMPULSE family are installed directly onto wafer processing equipment. For macro defect inspection, Onto Innovation offers tools including the F30, NSX, Firefly, and Dragonfly G3 systems. The company's lithography offerings include the JetStep X500 system designed for rectangular panel substrates used in advanced packaging applications.

In the fourth quarter of 2025, Onto Innovation acquired Semilab USA, adding three advanced product lines—FAaST, CnCV, and MBIR—that enhance capabilities in inline wafer contamination monitoring, materials characterization, and surface charge metrology. The company also maintains a 4D Technology business offering interferometry systems for precision surface measurement in aerospace, defense, and scientific research applications.

Onto Innovation serves over 190 customers across more than 25 countries. As of January 3, 2026, the company employed approximately 1,615 staff globally, with 55 percent located in the United States, 40 percent in Asia Pacific, and 5 percent in Europe. The company maintains manufacturing operations in Milpitas, California; Tucson, Arizona; Wilmington, Massachusetts; Bloomington, Minnesota; and through various contract manufacturers worldwide. Onto Innovation holds or exclusively licenses 423 U.S. and foreign patents with expiration dates ranging from 2026 to 2044, with an additional 312 pending patent applications covering metrology, defect detection, lithography techniques, and artificial intelligence technologies.