Onto Innovation Inc. announced a definitive agreement to acquire the materials analysis business of Semilab International for approximately $545 million. The transaction comprises $475 million in cash and 706,215 shares of Onto Innovation common stock, based on the closing price on June 27, 2025.
This acquisition will add four complementary product lines, including inline wafer contamination monitoring and materials interface characterization, addressing new challenges in advanced nodes and packaging. These acquired product lines have demonstrated a 20% compound annual growth rate since 2021 and are projected to add over $130 million in annual revenue in 2025.
The transaction is expected to be immediately accretive to both gross and operating margins and is projected to increase non-GAAP earnings per share by more than 10% in the first year following its close. The acquisition is anticipated to close in the second half of 2025, pending U.S. and Hungarian regulatory approvals and customary closing conditions.
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