Onto Innovation has agreed to acquire a 27% stake in Rigaku, a Japanese firm specializing in X-ray metrology technology for semiconductor manufacturing, for $710 million. The deal is structured as both a financial stake and a strategic alliance between the two companies. Rigaku's shares hit a record high following the announcement.
This deal deepens Onto Innovation's footprint in semiconductor process control — a high-growth niche as chipmakers demand ever-more-precise manufacturing inspection tools. X-ray metrology is increasingly critical for advanced chip nodes, so the alliance positions ONTO to offer a broader technology stack to customers like TSMC, Intel, and Samsung. Investors in semiconductor equipment names should note this as a signal that consolidation and partnership activity in the metrology sub-sector is accelerating.
Onto Innovation Q2 2025 earnings call — listen for integration strategy and any revenue synergy guidance. Watch for any regulatory filings required for a U.S. company acquiring a stake in a Japanese firm under Japan's Foreign Exchange and Foreign Trade Act (FEFTA). SEMI trade show announcements for any joint product reveals between ONTO and Rigaku.
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