Gallium nitride semiconductors in 2026: overview
Gallium nitride (GaN) is a compound semiconductor used in electronic and optoelectronic devices. Its high electron mobility and ability to operate at high switching frequencies make it valuable for compact power conversion and RF amplification. Commercial activity spans chargers, data-center power, automotive electrification and communications, while researchers continue to address reliability, heat removal and manufacturing consistency. Power devices and RF transistors draw on different device structures, but both depend on controlling defects, leakage and electric fields.
Recent work points to more deliberate engineering of device interfaces and fields. In August 2026, researchers reported a β-Ga2O3 buffer, graded AlGaN back barrier and gate field plate to improve breakdown and RF performance, while other studies used TCAD-calibrated machine learning to model trap-induced degradation. EPFL’s August 2026 work on intrinsic polarization superjunctions explores a route to higher-voltage power devices. Meanwhile, onsemi launched its GaNEXUS power portfolio in June 2026. Reliability and scalable manufacturing remain central as the field moves beyond established low-voltage uses.
- 1Fields under control: Recent superjunction and field-plate designs target the breakdown limits that constrain lateral GaN power devices.
- 2Reliability still matters: Trap modeling, gate-stack engineering and short-circuit robustness remain essential for translating promising device designs into dependable products.
- 3Manufacturing expands: onsemi’s June 2026 GaNEXUS launch signals continued portfolio building as suppliers pursue broader power-conversion uses.
Top organizations working on gallium nitride semiconductors
Ranked by Linknovate activity score · last 24 monthsThe activity score adds up the relevance of every patent, publication, grant and news item linking an organization to gallium nitride semiconductors. Showing 7 of 2,252 organizations.
| # | Organization | Approach | Signals (24 mo) | Momentum | Why it matters |
|---|---|---|---|---|---|
| 1 | 
Infineon Technologies
Corporate · Germany |
Lateral power transistors | PAT 59 · PUB 42 GRANTS 2 · NEWS 781 |
-43% | Recently, Infineon expanded its CoolGaN 40-V bidirectional switch family with two devices designed to reduce board footprint and component count. Its GaN portfolio targets compact, efficient power conversion. |
| 2 | 
Xidian University
Research · China |
RF transistors | PAT 4 · PUB 337 | -50% | Recently, Xidian researchers reported a Ka-band AlGaN/GaN/AlN HEMT with 21.1 W/mm output power density. Their work also spans GaN epitaxy, RF devices, thermal management and vertical power-transistor architectures. |
| 3 | 
Chinese Academy of Sciences CAS
Research · China |
General | PUB 281 · NEWS 6 | +5% | CAS-affiliated researchers study GaN HEMT thermal management and device structures, including AlN-mediated diamond integration to reduce heating. Their work also covers GaN-based UV and terahertz detectors. |
| 4 | 
STMicroelectronics
Corporate · Switzerland |
Lateral power transistors | PAT 46 · PUB 55 NEWS 294 |
-35% | Recently, STMicroelectronics researchers studied lifetime under dynamic stress in 650-V Schottky p-GaN gate HEMTs. The company’s GaN work addresses monolithic bidirectional switches, reliability and power-device performance. |
| 5 | 
University of Science and Technology of China
Research · China |
RF transistors | PAT 10 · PUB 180 NEWS 4 |
-51% | USTC researchers investigate GaN HEMT reliability and fabrication, including a 40-nm-gate AlGaN/GaN RF transistor with a self-aligned sidewall gate. Their work also includes GaN photodetectors and terahertz devices. |
| 6 | 
University of Chinese Academy of Sciences
Research · China |
Lateral power transistors | PUB 185 | -46% | UCAS researchers study GaN HEMTs for power switching, including buffer engineering to improve breakdown voltage and diamond integration for thermal management. Their research also includes GaN-based LEDs and photodetectors. |
| 7 | 
GaN Systems
Corporate · Canada |
Lateral power transistors | PAT 1 · NEWS 187 | -38% | GaN Systems develops GaN power transistors and switching devices for power conversion. Its technology is aimed at applications requiring efficient, compact power electronics. |
| 8 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 9 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 10 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
Startups to watch and leading research centers
Startups to watch 37 total
Cambridge Gan Devices LtdUnited KingdomCambridge GaN Devices develops ICeGaN, a monolithic GaN HEMT technology for power applications. Its device designs aim to improve gate-drive tolerance and performance under light-load conditions.- WMWavetek Microelectronics CorporationTaiwanWavetek’s GaN-related work centers on RF HEMT structures and device modeling, including designs using graded AlGaN barriers and β-Ga₂O₃ substrates.
- ASAkash Systems Inc.United StatesAkash Systems works on GaN-on-diamond electronics, a substrate and thermal-management approach intended to reduce self-heating in high-power, high-frequency HEMTs.
- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
Leading research institutions 1,645 total
- Xidian UniversityChinaRecently, Xidian researchers reported a Ka-band AlGaN/GaN/AlN HEMT with 21.1 W/mm output power density. Their work also spans GaN epitaxy, RF devices, thermal management and vertical power-transistor architectures.
- Chinese Academy of Sciences CASChinaCAS-affiliated researchers study GaN HEMT thermal management and device structures, including AlN-mediated diamond integration to reduce heating. Their work also covers GaN-based UV and terahertz detectors.
- University of Science and Technology of ChinaChinaUSTC researchers investigate GaN HEMT reliability and fabrication, including a 40-nm-gate AlGaN/GaN RF transistor with a self-aligned sidewall gate. Their work also includes GaN photodetectors and terahertz devices.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
Where gallium nitride semiconductors innovation happens
Share of documents with at least one organization from each country.
Open the interactive map with all 2,252 organizationsMain technical approaches
Last 24 months| Approach | What it is | Documents | Leading organizations |
|---|---|---|---|
| Lateral power transistors | Lateral HEMTs offer compact, fast switching, but electric-field concentration and heat can limit breakdown voltage and reliability. | 1,748 |
Xidian University, National Yang Ming Chiao Tung University, University of Electronic Science and Technology of China |
| Vertical power devices | Vertical architectures can support higher voltage by conducting through the wafer, but require demanding substrates and process integration. | 889 |
Xidian University, GAN Ltd, Infineon Technologies |
| RF transistors | GaN HEMTs provide high-frequency power amplification, while linearity, thermal management and trapping remain performance trade-offs. | 3,663 |
Xidian University, GAN Ltd, National Yang Ming Chiao Tung University |
| Optoelectronic devices | GaN optoelectronics support light emission and detection, but material defects and integration with other components can constrain performance. | 949 |
GAN Ltd, Chinese Academy of Sciences CAS, Xiamen University |
| Substrate and epitaxy platforms | Substrate and epitaxy choices shape defect density, thermal behavior and cost, with each platform balancing performance against manufacturability. | 929 |
GAN Ltd, Xidian University, Infineon Technologies |
Emerging trends
Last 12 months vs previous 36 monthsTerms whose frequency in the last 12 months grew the most compared with the previous 36 months.
Funding and investment
Recent funding rounds
GaN-related research has received $652.6 million across 193 grants since 2020. The listed funding-round total spans broader semiconductor activity and should not be read as GaN-specific investment.
Patent landscape
Top patent holders · last 24 monthsRecent developments
Latest news, duplicates removed- Oct 2026Silicon carbide maker Wolfspeed could receive up to USD 1.5 billion in 30-year financing from the US Department of War. In return, the department would get warrants for up to 7.5% of the company. Wolfspeed has received…evertiq.com :: Latest news
- Oct 2026US-based materials technology company demonstrates proprietary and commercially viable production of phase-pure gallium nitride nanoparticles. FREMONT, Calif., October 6, 2026 (Newswire.com) - Mivium Inc. today…Press Releases | Newsroom | Newswire
- Jul 2026Somewhere in the last few years, chargers quietly shrank. A 65-watt charging block that used to take up half an outlet strip now fits next to your keys. The battery inside your phone didn’t get this upgrade, the…Science on Medium
- Jun 2026Why new designs and process flows could help overcome manufacturing challenges. Key Takeaways: Gallium nitride power devices have made significant inroads into low-voltage applications like chargers for consumer…Semiconductor Engineering
- Month 20XXHidden developmentAvailable to registered users with alerts enabled.
Frequently asked questions about gallium nitride semiconductors
What companies are working on gallium nitride semiconductors?
Infineon Technologies, STMicroelectronics and Navitas Semiconductor are among the companies active in GaN semiconductors. Infineon develops compact power-conversion products and holds 59 patents in the listed patent-holder data; STMicroelectronics works on power-device reliability, and Navitas targets power ICs for data centers and EVs. Other companies in the landscape include GaN Systems, ROHM Semiconductor and Efficient Power Conversion.
Which gallium nitride semiconductor startups are the most promising in 2026?
The 37 startups identified include Navitas Semiconductor, Cambridge GaN Devices and Akash Systems. Navitas develops GaN power ICs for data centers and EVs, while Cambridge GaN Devices develops its ICeGaN monolithic HEMT technology. Akash Systems works on GaN-on-diamond for thermal management. These companies represent distinct directions in power conversion, device design and substrate engineering.
Which universities and research centers lead gallium nitride semiconductors research?
Xidian University leads the listed research organizations with 341 documents in the window, followed by the Chinese Academy of Sciences CAS with 287 and the University of Science and Technology of China with 194. Their work spans RF HEMTs, thermal management, device fabrication and optoelectronic devices. Recent research also comes from universities working on interface engineering, trap behavior and power-device architectures.
How much funding has gallium nitride semiconductors received?
GaN-related research has received $652.6 million across 193 grants since 2020. This figure summarizes grants associated with the topic; it is distinct from the listed funding-round total, which includes broader semiconductor activity and may include unrelated financings. Treat the grant figure as research funding associated with the landscape, not as a measure of commercial investment in GaN companies.
Who holds the most gallium nitride semiconductors patents?
Infineon Technologies is the leading listed holder with 59 patents, followed by Samsung with 51 and Huawei with 47. STMicroelectronics holds 46, and Taiwan Semiconductor Manufacturing Company holds 42. These figures identify organizations with substantial patent activity in the topic; they do not measure the strength, commercial value or enforceability of individual patents.
Is gallium nitride semiconductors patent activity growing?
Patent activity declined 51.9% in the last-12-month comparison reported for the topic. The database lists 1,877 patents in the 24-month window, but that total is not the same as the year-over-year growth measure. Patent activity varies across technical areas, and the recent work continues to address device reliability, epitaxy, field management and power architectures.
What are the latest developments in gallium nitride semiconductors?
Recent developments include EPFL’s August 2026 work on intrinsic polarization superjunctions and onsemi’s June 2026 launch of the GaNEXUS power portfolio. Recent papers also investigate β-Ga2O3 buffers and gate field plates for improved breakdown and RF performance, and TCAD-calibrated machine learning to predict trap-induced degradation. Together, these efforts target higher-voltage operation, better reliability and commercial power conversion.
What are the main approaches in gallium nitride semiconductors and how do they differ?
The five main approaches are lateral power transistors, vertical power devices, RF transistors, optoelectronic devices, and substrate and epitaxy platforms. Lateral HEMTs are established for fast power switching, while vertical structures aim to support higher voltage. RF devices prioritize amplification at high frequencies; optoelectronic devices emit or detect light. Substrate and epitaxy work underpins all of these by shaping defects, heat flow and manufacturability.
Which countries lead gallium nitride semiconductors?
The United States leads the listed country data with 24,318 documents, followed by China with 18,234 and Japan with 10,687. The United Kingdom and Germany are also active, with 8,612 and 8,410 documents respectively. These figures reflect topic-related documents, not a direct comparison of manufacturing capacity or commercial market share.
What are the applications of gallium nitride semiconductors?
The listed applications include data-center power, automotive electrification, consumer power conversion, renewable energy systems, and telecommunications and radar. Data-center power has 2,401 documents in the application data, while automotive electrification has 2,002. GaN’s fast switching and power density suit compact conversion systems; RF transistors support high-frequency amplification for communications and radar.