Market and Technology Trends

Power GaN 2026

Jul 2026

From consumer success to AI-driven growth: power GaN enters the manufacturing ramp-up era, propelling the market to $3.5B by 2031

YINTR26577

Scope

Depth analysis

Component
Process
Wafer

Technology

GaN HEMT
GaN-on-Si
GaN-on-Sapphire
GaN-on-QST
Discrete
SiP
SoC

While fast chargers remain the volume anchor, AI infrastructure is emerging as the strongest adoption catalyst, driven by rapidly growing power demands in data centers. The Power GaN market is projected to reach $3.5 billion by 2031, supported by increasing demand for highly efficient, compact, and high-power-density power conversion solutions.

The Power GaN supply chain is shifting from consolidation to industrialization. IDMs are expanding capacity and increasing vertical integration, while TSMC’s exit is accelerating foundry diversification and regionalization. These developments are strengthening ecosystem resilience and preparing the industry for high-volume adoption.

Power GaN technology is advancing through 8-inch and 12-inch manufacturing, innovative substrates, and bidirectional devices. Higher-voltage architectures are expanding opportunities, while ongoing improvements in manufacturing efficiency and performance are accelerating the technology’s maturity and adoption.

What's New

Highlighting of manufacturing ramp-up and ecosystem evolution.
Capacity expansion forecast for different IDMs and Foundries.
Split of wafer diameters, including 300mm ramp-up.
M&A landscape, potential buyers and potential targets.
Analysis of AI datacenter impact and over competition risks.
Update of the latest technology trends, normally ON vs normally OFF, bi-directional switches, high-voltage GaN, bulk GaN vs SiC.
Update of global trends in the key markets of Power GaN, including consumer, automotive, industrial, renewable energy…etc.
The latest trends of GaN adoption in AI data center applications, with respect to the different architectures.

Report Objectives

To provide context on the market trajectory in the 2021-2031 timeframe
- What are the key market drivers for the growth of GaN?
- What are the market values and volumes for GaN applications and technologies?
To provide an overall view of global power GaN market trends
To review the GaN supply chain
- Players and strategies at different levels of the supply chain
- Analysis of the demand and supply of GaN wafers, with a focus on capacity
- Significant events and latest trends
- Focus on China
Technology trends and status of currently available products
- What are the latest technological developments and the focus of the major players?
- Who has the technology and the products?

AI datacenter drives growth from consumer fast chargers into infrastructure

Power GaN adoption continues to be driven by higher efficiency, greater power density, bidirectional capability, and system-level cost reduction. As these benefits expand beyond consumer electronics into infrastructure, automotive, energy, and industrial applications, the Power GaN device market is projected to reach $3.5 billion by 2031, representing a 35% CAGR from 2025 to 2031.

Consumer electronics will remain the largest market, with fast chargers continuing to drive volumes while GaN expands into home appliances, audio, and power tools. The Consumer and Mobile segment is expected to represent ~50% of the market, reaching ~$1.7 billion by 2031.

AI infrastructure is emerging as the strongest adoption catalyst, as growing data center power demand accelerates the deployment of GaN-based power supplies and HVDC architectures. Multiple Tier-1 and Tier-2 suppliers are developing end-to-end GaN-based power solutions positioning GaN as a key technology for next-generation datacenters.

Automotive adoption is gaining momentum with the commercialization of GaN onboard chargers and increasing opportunities in 48V architectures, DC-DC converters, motor drives, and LiDAR.

Looking beyond 2030, humanoid robotics could become the next major growth driver for Power GaN thanks to its demand for compact, highly efficient power electronics.

Manufacturing ramp-up and foundry diversification drive the next growth phase

The Power GaN industry is transitioning from consolidation to a manufacturing ramp-up phase, driven by growing demand from consumer, AI infrastructure, automotive, and energy applications. To capture this growth, leading players such as Innoscience, Infineon, Renesas, ROHM, STMicroelectronics, onsemi, and Nexperia are expanding GaN manufacturing capacity, investing in vertical integration, and strengthening strategic partnerships.

A major trend is the emergence of an IDM-driven ecosystem. Following acquisitions including Renesas–Transphorm, Infineon–GaN Systems, and onsemi–NexGen, established semiconductor companies are bringing GaN production in-house and leveraging existing 8-inch and 12-inch manufacturing infrastructure. onsemi's entry into the Power GaN market further reinforces GaN as a strategic technology, accelerating the industry's shift away from fabless models toward vertically integrated manufacturing.

Partnerships between IDMs, foundries, epitaxy suppliers, and technology developers are also increasing to improve time-to-market and supply security, particularly for AI infrastructure and automotive applications. At the same time, TSMC's exit has accelerated foundry diversification, with GlobalFoundries, X-FAB, VIS, PSMC, Samsung, DB HiTek, SK Keyfoundry, and others expanding their GaN capabilities.

Overall, the Power GaN supply chain is becoming more mature and resilient through greater vertical integration, broader foundry capacity, and regional diversification, positioning the industry for the next phase of high-volume adoption despite ongoing IP disputes.

Power GaN at an inflection point: substrate innovation, 12-inch roadmaps, and high-voltage expansion

GaN epitaxy remains one of the most critical and cost-intensive steps in HEMT manufacturing, making cost reduction and yield improvement top industry priorities. Advanced MOCVD platforms continue to improve manufacturing economics, while GaN-on-QST and GaN-on-GaN are emerging as promising substrate technologies for higher-voltage devices and improved performance. The first commercial GaN-on-QST products have already reached the market, while GaN-on-GaN remains a long-term candidate for 1200V+ applications.

8-inch wafers are now the mainstream manufacturing platform, with leading IDMs and foundries investing heavily in capacity. Meanwhile, development is progressing toward 12-inch compatibility to further reduce manufacturing costs.

Innovation is also extending beyond conventional 650V HEMTs. High-voltage GaN devices, bidirectional switches, and increasingly integrated power modules are improving power density, reducing component count, and simplifying system design for AI infrastructure, automotive, energy storage, and industrial applications.

Although significant progress has been made, Power GaN remains a system-level technology, requiring optimized architectures, advanced packaging, and careful EMI management. As these challenges are addressed, GaN is becoming increasingly well positioned for large-scale deployment across high-volume applications.

Intellectual Property Rights (IPR)
Glossary
Table of contents
Report objectives
Identity card
Scope of this report
Methodologies and definitions
About the authors
What we got right, what we got wrong
Comparison with Yole’s previous forecasts
Companies cited in this report
Three-page summary
Executive Summary
Context
Market forecasts