Onto Innovation Inc (NYSE: ONTO) is a semiconductor process control equipment company that designs, develops, manufactures, and sells metrology and inspection tools for the semiconductor industry. Revenue comes from equipment sales and support services tied to optical metrology systems, wafer inspection tools, lithography systems, and process control analytical software. Customers include silicon wafer manufacturers, semiconductor integrated circuit fabricators, and advanced packaging manufacturers. The company operates worldwide, with products used across 2D and 3D wafer feature inspection, wafer and panel substrate lithography, and macro defect detection. High switching costs are inherent in semiconductor process control equipment, where tool qualification cycles and process integration create customer retention, though the filing does not provide quantified evidence to characterize moat strength further. Onto Innovation was formed through the 2019 merger of Nanometrics and Rudolph Technologies and is headquartered in Wilmington, Massachusetts.

Revenue model

Transactional equipment sales of metrology, inspection, and lithography tools, supplemented by support and service revenue. Software is sold as process control analytical tools bundled with or alongside hardware.

Products and services

Optical metrology tools, wafer inspection systems (patterned and unpatterned wafers, 2D and 3D features), macro defect inspection tools, wafer substrate lithography systems, panel substrate lithography systems, process control analytical software.

Customers and end markets

Silicon wafer manufacturers, semiconductor IC fabricators, advanced packaging manufacturers, and specialty device manufacturers. End markets are semiconductor front-end and advanced packaging production.

Value-chain role

Capital equipment supplier and process control tooling provider sitting between materials suppliers and semiconductor device manufacturers in the chip fabrication supply chain.

Geographic exposure

Worldwide operations; specific regional revenue breakdown not provided in the excerpts supplied.

Source: SEC 10-K, filed 2026-02-24

Industry: Measuring & Controlling Devices, NEC Peers: Amkor Technology Inc Applied Materials Inc Axcelis Technologies Inc Cohu Inc Entegris Inc FormFactor Inc MKS Incorporated Teradyne Inc Ultra Clean Holdings Inc