Onsemi to Acquire Synaptics for $7 Billion to Lead 'Physical AI' Market
The all-stock merger blends power semiconductors with connected-compute platforms to target a $243 billion addressable market by 2030.
ON Semiconductor (onsemi) has agreed to acquire Synaptics in an all-stock transaction valued at approximately $7 billion. The move marks the largest acquisition in onsemi's history and is designed to accelerate the company's expansion into AI-enabled devices and the emerging field of "physical AI."
Under the terms of the agreement, Synaptics shareholders will receive 1.350 shares of onsemi common stock for each Synaptics share they hold. This valuation represents a premium of approximately 19% based on the 10-day volume-weighted average closing prices. The transaction is expected to close by mid-2027, pending customary regulatory and shareholder approvals. Additionally, the companies are targeting $200 million in annual synergies following the integration.
The Strategy Behind Physical AI
Onsemi has established itself as a leader in power and sensing semiconductors, with a heavy focus on the industrial and automotive sectors. Synaptics specializes in human-machine interface (HMI) technology and connected-computing platforms. By merging these capabilities, onsemi intends to dominate "physical AI"—the integration of artificial intelligence directly into hardware and machinery rather than relying on cloud-based processing.
CEO Hassane El-Khoury noted that Synaptics provides a "world-class connected compute platform" already present in onsemi's target markets. According to El-Khoury, the combination of these two portfolios will create a market leader in the physical AI realm.
Market Implications and Growth
This acquisition signals a broader strategic shift toward edge computing, where intelligence is moved from centralized data centers directly into the devices themselves. For onsemi, the deal provides immediate entry into the robotics and humanoid markets, diversifying its revenue streams beyond traditional automotive power chips.
The financial stakes are significant. Onsemi expects the acquisition to expand its total target market size by $30 billion, projecting a total addressable market of $243 billion by 2030. By positioning itself as a comprehensive provider for the next generation of AI-driven hardware, onsemi aims to capture the infrastructure layer of the robotics revolution.
What to Watch
While the strategic logic is clear, the deal remains subject to the standard hurdles of regulatory scrutiny and shareholder votes. Investors will be watching to see how quickly onsemi can integrate Synaptics' compute capabilities with its own sensing strengths to produce viable physical AI products. The mid-2027 closing timeline suggests a complex integration process, and the realization of the $200 million in annual synergies will be a key metric for the deal's ultimate success.