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Onto Innovation Completes Acquisition of Unique Materials Composition and Electrical Analysis Product Lines from Semilab International

Onto Innovation Inc. (ONTO) | November 17, 2025

By Nina King

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Onto Innovation Inc. completed the acquisition of key product lines from Semilab International, enhancing its capabilities in materials characterization.

The acquisition adds three advanced product lines to Onto Innovation's portfolio: FAaST, CnCV, and MBIR.

The transaction strengthens Onto's position in advanced materials characterization for various segments like advanced logic/memory and advanced packaging.

Acquisition Details

Valued at approximately $495 million, the acquisition adds critical product lines and expands Onto Innovation's portfolio.

Revenue Guidance Update

Fourth-quarter revenue guidance range updated to $258 to $275 million, with the acquisition expected to contribute $8 to $10 million from closing until January 3, 2026.

Future Expectations

The acquisition is expected to be immediately accretive to margins and add $0.02 to $0.04 to diluted earnings per share in the fourth quarter.

Revenue Projection

Anticipated contribution of approximately $120 million in revenue from the acquired product lines in 2026.

  • The acquisition enhances Onto's materials portfolio in high-growth segments, such as advanced logic, AI-enabling packaging, and power semiconductors.
  • Combining Semilab's products with Onto's capabilities will enable more accurate electrical defectivity location and characterization, reducing the number of defective devices in the market.

Overall, Onto Innovation's acquisition of key product lines from Semilab International marks a strategic move to strengthen its position in the materials characterization field and enhance customer value through advanced technologies and expanded capabilities.