IN Brief:
- The revised agreement values Synaptics at approximately $5.7 billion, compared with roughly $7 billion under the original structure.
- Synaptics shareholders would receive $123 per share in cash rather than stock in the combined company.
- The companies continue to target completion by mid-2027, subject to shareholder approval, remaining regulatory clearances, and other conditions.
onsemi and Synaptics have amended their planned merger, replacing the original all-stock structure with a $123-per-share cash offer that values Synaptics at approximately $5.7 billion.
The companies agreed the revised terms after Synaptics received an unsolicited competing proposal from a third party. The amended transaction reduces the headline value from the approximately $7 billion attached to the agreement announced in June while retaining the intended combination of the two semiconductor portfolios.
Completion remains targeted for mid-2027, subject to Synaptics shareholder approval, outstanding regulatory clearances, and other closing conditions. The US Federal Trade Commission has already cleared the transaction following early termination of the applicable waiting period.
The financing structure changes substantially under the amendment. Synaptics shareholders were originally due to receive onsemi shares, giving them an equity interest in the combined company. The revised agreement fixes consideration at $123 in cash for each Synaptics share.
onsemi says the acquisition will be financed using cash on hand and committed debt financing from Morgan Stanley. The merger agreement does not contain a financing condition, and the company expects the transaction to be immediately accretive to non-GAAP earnings per share after completion.
The semiconductor rationale remains the same despite the revised economics. onsemi contributes power semiconductors, image sensing, automotive sensing, analogue technology, and related control products, while Synaptics adds embedded compute, wireless connectivity, human-machine interface technology, audio, vision, and edge AI capability.
The planned combination would extend onsemi further into connected edge systems rather than leaving it concentrated around power and sensing. Synaptics’ processors and connectivity products fill parts of the signal chain that are less developed within onsemi’s existing portfolio, particularly where local compute and wireless interfaces sit alongside sensing and power control.
The two companies have identified industrial automation, automotive electronics, edge AI, and data centre applications among the areas where the portfolios could be combined. That does not establish a future integrated product roadmap, however, and both businesses continue to operate independently while the transaction remains pending.
onsemi is still targeting more than $200 million in annual run-rate synergies. Part of the manufacturing plan involves evaluating whether selected Synaptics production can be brought into onsemi’s own manufacturing network, potentially increasing utilisation and giving the combined company more direct control over some process flows.
Any such transfer would require more than a commercial decision. Semiconductor products are qualified around specific wafer processes, foundries, assembly flows, package materials, electrical characteristics, and customer requirements. Moving production can require wafer-level requalification, package validation, reliability testing, and customer approval before volume can shift.
Synaptics also relies on software, development tools, connectivity stacks, and board-level ecosystems around its devices. Integration therefore extends beyond semiconductor fabrication. Product-roadmap decisions would have to account for software support, reference platforms, customer programmes, and long product lifecycles in industrial and embedded markets.
onsemi’s broader strategy increasingly brings power, sensing, compute, and control under one supplier. Recent product and partnership activity has expanded its position around AI infrastructure, automotive sensing, and physical AI, while Synaptics has been adding edge processors, wireless devices, and integrated AI capabilities for industrial and IoT designs.
The amendment changes the acquisition price without removing the operational challenge of combining those businesses. A lower purchase price improves the financial starting point for onsemi, but product integration, manufacturing changes, software consolidation, and customer retention will determine how much of the proposed strategic value can be realised.
The next formal steps remain corporate rather than technical. Synaptics shareholders must approve the amended agreement and remaining regulatory requirements must be completed before the companies can begin operating as one organisation. Until then, the $5.7 billion transaction defines a potential future semiconductor supplier rather than a combined product portfolio that customers can design around today.



