onsemi to Develop Next-Generation GaN Power Devices with GlobalFoundries

Rhea-AI Summary

onsemi (Nasdaq: ON) announced a collaboration with GlobalFoundries (Nasdaq: GFS) to develop and manufacture next-generation 650V lateral GaN power devices using GF’s 200mm eMode GaN-on-silicon process.

The companies plan to combine GF’s GaN platform with onsemi’s silicon drivers, controllers, and thermally enhanced packaging to deliver higher power density and efficiency for AI data centers, electric vehicles, renewable energy, industrial, and aerospace, defense and security markets. onsemi expects to begin sampling in the first half of 2026 and scale to volume production thereafter.

Positive

• Samples scheduled to begin in H1 2026
• Adds 650V lateral GaN to onsemi product roadmap
• Uses GF 200mm eMode GaN-on-silicon manufacturing platform
• Combines GaN with onsemi silicon drivers and thermally enhanced packages

Negative

• None.

Key Figures

GaN voltage rating 650V Initial high-performance lateral GaN power devices in collaboration

Wafer size 200mm GF eMode GaN-on-silicon process node used for ON collaboration

Sampling timing First half of 2026 ON plans to begin providing GaN samples to customers

Market Reality Check

$54.34 Last Close

Volume Volume 7,920,839 vs 20-day average 9,036,970, indicating slightly below-typical activity. normal

Technical Price 53.33 is trading above the 200-day MA at 48.42 ahead of this news.

Peers on Argus 1 Up

Ahead of this collaboration news, ON was down 2.25%. Key peers in semis were also lower: GFS -2.16%, STM -1.5%, UMC -0.99%, ASX -3.28%, while CRDO showed a larger move of -5.76%. Momentum scanner only flagged CRDO separately with a move in the opposite direction, suggesting mixed, stock-specific action rather than a unified sector move.

Historical Context

Date	Event	Sentiment	Move	Catalyst
Dec 11	Auto partnership	Positive	+1.6%	Extended PowerTrench T10 MOSFET collaboration for advanced automotive platforms.
Dec 02	GaN collaboration	Positive	+2.1%	MoU with Innoscience to scale 40–200V GaN power devices on 200mm wafers.
Nov 18	Share repurchase	Positive	-1.0%	Announced new $6B, three-year share repurchase authorization starting 2026.
Nov 03	Q3 2025 earnings	Positive	+0.8%	Reported Q3 revenue, margins and cash flow with ongoing buybacks and Q4 guidance.
Oct 30	vGaN launch	Positive	-1.1%	Introduced vertical GaN power semis for AI, EVs, renewables and aerospace.

Pattern Detected

Recent ON news has mostly seen price gains on positive corporate developments, with some divergences where technology announcements or capital return news were followed by modest declines.

Recent Company History

Over the last few months, onsemi reported Q3 2025 results on Nov 3 with solid revenue and margins, followed by an 8-K and 10-Q detailing restructuring charges and strong cash generation. The company then authorized a new $6 billion buyback on Nov 18. Strategically, ON has emphasized advanced power technologies and GaN: it unveiled vertical GaN for AI and electrification on Oct 30, extended its PowerTrench MOSFET collaboration with FORVIA HELLA on Dec 11, and signed a GaN production MoU with Innoscience on Dec 2. Today’s GlobalFoundries GaN deal continues that power-semiconductor roadmap.

Market Pulse Summary

This announcement extends onsemi’s intelligent power strategy by pairing its drivers and packaging with GlobalFoundries’ 200mm, 650V GaN-on-silicon process for AI data centers, EVs, renewables, and aerospace. It follows earlier GaN and vertical GaN milestones and comes alongside an active restructuring program and large repurchase authorization. Investors may watch execution milestones such as planned sampling in the first half of 2026, customer adoption across key end markets, and how new GaN products integrate with onsemi’s broader power portfolio and manufacturing footprint.

Key Terms

gallium nitride medical

"to develop and manufacture next-generation gallium nitride (GaN) power products"

Gallium nitride is a durable semiconductor material used to make electronic components that switch faster, handle higher voltages, and waste less energy than older silicon parts. Think of it as a lighter, more efficient motor in an appliance: it lets devices shrink, run cooler and save power, which can lower manufacturing costs, enable new products and boost sales or margins for companies that adopt it—key factors investors watch.

gan-on-silicon technical

"200mm eMode GaN-on-silicon process with onsemi’s industry-leading silicon drivers"

GaN-on-silicon is a semiconductor technology that places gallium nitride (a material that conducts electricity more efficiently at high voltages and speeds) onto a standard silicon wafer used in chipmaking. For investors, it matters because it can deliver smaller, faster and more energy-efficient power and radio-frequency components while leveraging existing, lower-cost silicon manufacturing, potentially boosting product performance, reducing production costs, and opening new markets for electronics and electric vehicles.

dc-dc converters technical

"These include power supplies and DC-DC converters for AI data centers"

DC-DC converters are electronic components that change one direct-current voltage level to another (for example, converting a battery’s voltage to the lower voltages used by chips). Think of them like a power adapter or gearbox for electricity: they make the right amount of power available efficiently and safely. Investors care because their efficiency, size, cost, and reliability affect product performance, battery life, manufacturing costs, and supply-chain demand, all of which can influence a company’s margins and growth prospects.

power density technical

"enabling system designers to build next-generation power architectures that deliver more power in smaller footprints"

Power density measures how much energy a device or system can produce or transfer in a given amount of space or volume, often expressed as power per unit area or volume. It helps investors understand how efficiently a technology can deliver energy or performance relative to its size, which can influence decisions about its practicality and potential for scaling up. High power density typically indicates a compact, powerful solution, while lower values suggest larger, less intense options.

AI-generated analysis. Not financial advice.

Collaboration expands onsemi’s power portfolio to include high-performance 650V lateral GaN solutions for AI data centers, automotive, aerospace, and other critical markets

Summary:

onsemi expands its leadership in intelligent power through a new collaboration agreement with GlobalFoundries (GF) to develop and manufacture next-generation gallium nitride (GaN) power devices, beginning with 650V. onsemi products will combine GF’s 200mm eMode GaN-on-silicon process with onsemi’s industry-leading silicon drivers, controllers, and thermally enhanced packaging to deliver smaller, more efficient systems optimized for AI data centers, automotive, industrial, and aerospace, defense, and security applications.

News Highlights:

• onsemi collaborates with GlobalFoundries to develop state-of-the-art 200mm eMode lateral GaN-on-Silicon process technology for critical markets, starting with 650V.
• onsemi’s GaN portfolio is ideally suited for high-density systems where power demands continue to rise but physical size cannot, including AI data centers, electric vehicles, renewable energy, and aerospace, defense, and security systems.
• Applications include power supplies, DC-DC converters, onboard chargers, solar microinverters, energy storage systems, and motor drives across a range of high-growth markets.
  
  

SCOTTSDALE, Ariz., and MALTA, N.Y., Dec. 18, 2025 (GLOBE NEWSWIRE) -- onsemi (Nasdaq: ON) today announced it has signed a collaboration agreement with GlobalFoundries (Nasdaq: GFS) (GF) to develop and manufacture advanced gallium nitride (GaN) power products using GF’s state-of-the-art 200mm eMode GaN-on-silicon process, starting with 650V. This collaboration accelerates onsemi’s roadmap for high-performance GaN devices and integrated power stages, expanding its portfolio with high-voltage products to meet the growing power demands of AI data centers, electric vehicles, renewable energy, industrial systems, and aerospace, defense and security.

“This collaboration brings together onsemi’s system and product expertise with GlobalFoundries’ advanced GaN process to deliver new 650V power devices for high-growth markets. Paired with our silicon drivers and controllers, these GaN products will enable customers to innovate and build smaller, more efficient power systems for AI data centers, EVs, space applications, and beyond. We are on track to begin providing samples to customers in the first half of 2026, and scale rapidly to volume production.” – Dinesh Ramanathan, Senior Vice President of Corporate Strategy, onsemi.

“By combining our 200mm GaN-on-Si platform and U.S.-based manufacturing with onsemi’s deep system and product expertise, we’re accelerating high-efficiency solutions and building resilient supply chains for data centers, automotive, industrial, aerospace and defense, and other critical markets. With onsemi as a key partner, we will continue to advance GaN semiconductors that meet the evolving demands of AI, electrification, and sustainable energy.” – Mike Hogan, Chief Business Officer, GlobalFoundries.

onsemi will pair its industry-leading silicon drivers, controllers, and thermally enhanced packages with GF’s 650V GaN technology platform to deliver optimized GaN devices with higher power density and efficiency. These include power supplies and DC-DC converters for AI data centers, onboard chargers and DC-DC converters for electric vehicles, solar microinverters and energy storage systems, motor drives and DC-DC converters, for industrial and aerospace, defense, and security applications.

This effort expands onsemi’s leading power semiconductor portfolio, which now includes the full spectrum of GaN technologies – from low, medium and high voltage lateral GaN to ultra high-voltage vertical GaN – enabling system designers to build next-generation power architectures that deliver more power in smaller footprints. These GaN advantages include:

• Higher Frequency Operation – By operating at higher switching frequencies, GaN allows designers to reduce component count, system size, and cost while improving efficiency and thermal performance.
• Bidirectional Capability – Bidirectional GaN capabilities enable entirely new topologies that can replace up to four traditional unidirectional transistors, cutting costs and simplifying designs.
• Integrated Functionality – Combining GaN FETs with drivers, controllers, isolation, and protection in a single package allows for faster design cycles and lower electromagnetic interference. The thermally enhanced packages and optimized gate drivers push performance and reliability even at high switching speeds.
  
  

Timing and Availability
onsemi will begin sampling in the first half of 2026.

About onsemi
onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. onsemi offers a highly differentiated and innovative product portfolio, delivering intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way to creating a safer, cleaner and smarter world. onsemi is included in the Nasdaq-100 Index^® and S&P 500^® index. Learn more about onsemi at www.onsemi.com.

onsemi and the onsemi logo are trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the Company references its website in this news release, information on the website is not to be incorporated herein.

About GF
GlobalFoundries (GF) is a leading manufacturer of essential semiconductors the world relies on to live, work and connect. We innovate and partner with customers to deliver more power-efficient, high-performance products for automotive, smart mobile devices, internet of things, communications infrastructure and other high-growth markets. With our global manufacturing footprint spanning the U.S., Europe and Asia, GF is a trusted and reliable source for customers around the world. Every day our talented, global team delivers results with an unwavering focus on security, longevity and sustainability. For more information, visit www.gf.com

Contact:

onsemi
Michael Mullaney
michael.mullaney@onsemi.com

GlobalFoundries
Stephanie Gonzalez
stephanie.gonzalez@gf.com

FAQ

What did onsemi (ON) announce on December 18, 2025?

onsemi announced a collaboration with GlobalFoundries to develop 650V GaN power devices using GF’s 200mm eMode GaN-on-silicon process.

When will onsemi (ON) start sampling its 650V GaN devices?

onsemi plans to begin sampling in the first half of 2026.

Which markets will onsemi's (ON) 650V GaN solutions target?

Target markets include AI data centers, EVs, renewable energy, industrial, aerospace, defense, and security applications.

How will onsemi (ON) combine technologies for the new GaN products?

onsemi will pair GF’s GaN process with its silicon drivers, controllers, and thermally enhanced packaging to improve power density and efficiency.

What process technology will GlobalFoundries supply for onsemi (ON)?

GlobalFoundries will provide its 200mm eMode GaN-on-silicon platform starting at 650V.