ON Semiconductor Corporation
Acquisitions
5
Major Deals Covered
$9.9B
Disclosed Deal Value
onsemi's largest disclosed acquisition here is Synaptics for $7B in 2026. This page covers 5 major deals from 2016 to 2026, each with its price where disclosed and the reason behind it.
| Company | Year | Price | Purpose |
|---|---|---|---|
| Fairchild Semiconductor | 2016 | $2.4B | onsemi paid about $2.4 billion in cash to add Fairchild's high- and medium-voltage power semiconductor portfolio. |
| GT Advanced Technologies | 2021 | $415.0M | onsemi bought GTAT for about $415 million to secure silicon carbide crystal growth. |
| Qorvo SiC JFET technology business (United Silicon Carbide) | 2025 | $115.0M | onsemi paid $115 million in cash for Qorvo's SiC JFET business to target AI data center power supplies and solid-state circuit breakers. |
| Aura Semiconductor Vcore power technologies | 2025 | Undisclosed | onsemi acquired rights to Aura's Vcore power technologies and related IP licenses to strengthen its AI data center power portfolio. |
| Synaptics | 2026 | $7.0B | All-stock deal valued at about $7 billion enterprise value to add edge AI processors, connectivity and human-interface chips for "physical AI" systems. |
2026
$7.0B
All-stock deal valued at about $7 billion enterprise value to add edge AI processors, connectivity and human-interface chips for "physical AI" systems.
Would be onsemi's largest acquisition; shares fell sharply on the announcement.
Announced June 25, 2026; pending as of September 2026.
2025
$115M
onsemi paid $115 million in cash for Qorvo's SiC JFET business to target AI data center power supplies and solid-state circuit breakers.
Adds JFET products alongside onsemi's EliteSiC MOSFETs.
Completed in January 2025.
2025
onsemi acquired rights to Aura's Vcore power technologies and related IP licenses to strengthen its AI data center power portfolio.
Extends onsemi's power-tree coverage toward processor voltage regulation.
Announced September 22, 2025 and completed October 27, 2025.
2021
$415M
onsemi bought GTAT for about $415 million to secure silicon carbide crystal growth.
It gave onsemi in-house SiC substrate supply from boule to module.
Completed in November 2021.
2016
$2.4B
onsemi paid about $2.4 billion in cash to add Fairchild's high- and medium-voltage power semiconductor portfolio.
The deal made power products onsemi's largest business and laid groundwork for its later automotive power focus.
Completed in September 2016.
Management is widening onsemi beyond EV traction inverters into AI data center power (aided by the 2025 Qorvo SiC JFET and Aura Vcore deals), industrial and energy infrastructure, and "physical AI" edge devices through the pending Synaptics acquisition. It is also exiting or selling under-used facilities and raising prices to lift factory utilization and margins.
onsemi makes money by selling semiconductors to automakers, tier-1 suppliers, industrial equipment makers and data center power-supply builders, largely through distributors and direct design wins. Revenue is reported in three groups: the Power Solutions Group (silicon and silicon carbide power devices and modules), the Analog and Mixed-Signal Group (power management, sensor interface and connectivity ICs) and the Intelligent Sensing Group (image sensors). The company runs its own fabs, including vertically integrated SiC production from crystal growth to modules after buying GT Advanced Technologies in 2021, so margins swing with factory utilization. Automotive design wins typically last for years, which gives visibility but also exposes onsemi to EV demand cycles.
Major deals include AMI Semiconductor (2008), SANYO Semiconductor (2011), Aptina Imaging (2014), Fairchild Semiconductor (2016, about $2.4 billion), Quantenna (2019, about $1.07 billion), GT Advanced Technologies (2021, about $415 million), Qorvo's SiC JFET business (2025, $115 million) and Aura Semiconductor's Vcore technologies (2025).
Yes, onsemi agreed on June 25, 2026 to buy Synaptics in an all-stock deal valued at about $7 billion; it was pending as of September 2026.
To bring silicon carbide crystal growth in-house and secure substrate supply for its EliteSiC products.
In November 2021, onsemi acquired bankrupt crystal growth pioneer GT Advanced Technologies for $415 million in cash. The acquisition secured proprietary silicon carbide (SiC) crystal growth equipment, insulating onsemi from external substrate bottlenecks and powering its EliteSiC roadmap.
In August 2014, onsemi acquired Aptina Imaging for $400 million, bringing over 2,000 imaging patents and high-performance CMOS sensor technology that formed the foundation for onsemi's world-leading automotive ADAS camera business.
In January 2011, onsemi acquired SANYO Semiconductor for approximately $580 million, expanding onsemi's presence in Japan and adding precision analog ICs and motor control technology for industrial automation and consumer appliances.
In May 2018, onsemi acquired Ireland-based SensL Technologies, a pioneer in silicon photomultipliers (SiPM) and single-photon avalanche diodes (SPAD). The acquisition positioned onsemi to develop next-generation solid-state LiDAR sensors for autonomous vehicles.
onsemi focuses M&A criteria on proprietary materials science, advanced packaging technologies, wide bandgap semiconductors (SiC and GaN), and high-efficiency power ICs that enhance gross margins and provide structural technology moats.
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