# Onto Innovation to acquire Semilab International's materials analysis business

Onto Innovation has agreed to acquire the materials analysis business of Semilab International for approximately $545 million in cash and stock. The acquisition adds inline wafer contamination monitoring and materials interface characterization technologies.

- Type: Acquisition
- Announced: 2025-06-30
- Where: United States
- Value: $545.0M
- Status: announced
- Products: inline wafer contamination monitoring, materials interface characterization
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Onto Innovation](https://endata.com/companies/59496.md) (acquirer)
- [Semilab International](https://endata.com/companies/85652.md) (target)

## Sources

- [investors.ontoinnovation.com](https://investors.ontoinnovation.com/news/news-details/2025/Onto-Innovation-Announces-Agreement-to-Acquire-Semilab-Internationals-Materials-Analysis-Business/default.aspx), 2025-06-30: "This acquisition aligns with Onto Innovation’s strategy to excel in high-growth, high-margin segments of the semiconductor value chain."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.