Introduction
Against the backdrop of China's "Dual Carbon" strategy and the global upgrade of public health systems, UVLEDTEK has emerged as a key participant in the transformation of the global semiconductor industry through breakthroughs in deep ultraviolet LED full-industrial-chain technologies. As a National "Little Giant" specialized and innovative enterprise, the company leverages its "light-gene" technology to redefine the connection between humans and environmental health, building a vertically integrated industrial closed loop spanning chip design, packaging and testing, and scenario-based solutions. This drives a critical transition of UV LED technology from laboratory research to large-scale commercial deployment.
Recently, at the 2025 Jiufengshan Forum and Compound Semiconductor Industry Expo, UVLEDTEK showcased its latest advancements in UV LED technology along with practical application cases in strategic emerging industries, drawing significant attention from the industry.
Technical Breakthroughs
Full-Industrial-Chain Innovation Driving Performance Improvement
The core technical bottleneck of deep ultraviolet LEDs lies in the wall-plug efficiency (WPE), which has long remained below 7% in the industry. The root cause is the lattice mismatch between traditional sapphire substrates and aluminum nitride (AlN) films, which leads to high-density dislocations during heteroepitaxial growth and reduces internal quantum efficiency (IQE). In addition, when the thickness of AlN films exceeds 3.5 micrometers, stress concentration induces through-cracks, significantly reducing chip yield.
Key Technological Breakthrough
01. Nano-Patterned Sapphire Substrate (NPSS) Technology
UVLEDTEK has introduced NPSS technology to enable lateral epitaxial growth of AlN films. This approach reduces dislocation density to one-third of that achieved by conventional processes.
At the same time, AlN film thickness has been increased to 10 micrometers without crack formation, laying a solid foundation for the fabrication of high-power UV LED chips.
02. Moth-Eye Microstructure Light Extraction Optimization
Inspired by biomimetic principles, UVLEDTEK applies photolithography combined with inductively coupled plasma (ICP) etching technology to fabricate uniform moth-eye structures on the backside of sapphire substrates.
This design significantly improves the light extraction efficiency (LEE) of deep ultraviolet emission by nearly 100%, effectively resolving the photon trapping effect and substantially enhancing overall device output performance.
03. Flexible Fluororubber Nanolens Packaging Technology
UVLEDTEK adopts AuSn eutectic flip-chip bonding, high-density COB (Chip-on-Board) packaging, and a flexible fluororubber nanolens array encapsulation technology for deep ultraviolet LEDs.
This integrated packaging approach effectively addresses the challenges of poor device reliability and short operational lifetime. As a result, the company has developed high-efficiency, high-power-density UV LED devices and light sources with significantly improved optical performance and durability.
Industrial Ecosystem Development
From "Technology Follower" to "Industry Leader"
Through full industrial-chain vertical integration, UVLEDTEK has broken international technological monopolies and achieved large-scale mass production of deep ultraviolet LED chips.
The independently developed DUV-LED chips have reached a wall-plug efficiency (WPE) of over 10%, compared with an international average of around 7% for competing products. The L70 lifetime has exceeded 15,000 hours, significantly outperforming industry benchmarks and marking a clear advancement in both performance and reliability.
Industrial Ecosystem Construction
Dual-Engine Model: "Independent R&D + Industrial Collaboration"
Facing technological barriers from international leaders, UVLEDTEK has established a dual-engine development model driven by independent R&D and industrial collaboration.
01. Full-chain capacity layout
The company has built four major R&D and manufacturing bases in Wuhan, Ezhou, Suzhou, and Quanzhou. It has independently developed core equipment including MOCVD epitaxial growth reactors, chip lithography and etching systems, and automated packaging production lines, forming a fully controllable process from epitaxial growth to module integration.
02. Technology barrier construction
UVLEDTEK has filed a total of 325 patents (including 168 invention patents). It has passed multiple high-standard certifications, including automotive-grade reliability certification (IATF 16949), medical-grade hygiene compliance, and ISO 9001 quality management systems, building a multi-layered competitive barrier covering technology, process, and quality control.
03. Ecosystem strategy layout
The company proposes a "1+N" industrial matrix-centered on deep ultraviolet chip technology, expanding horizontally into multiple application scenarios such as smart home appliances, water treatment, new energy vehicles, and medical aesthetics.
It collaborates with leading enterprises such as Midea and Haier to jointly develop technical standards and scenario-based solutions. Vertically, leveraging more than a decade of globally leading AlGaN UV LED R&D and industrialization experience, the company accelerates the deployment of emerging applications, forming a second growth curve for revenue.
Application Expansion
From Laboratory Research to a Trillion-Level Market
As a rare high-tech enterprise in China engaged in full-spectrum and full-industrial-chain UV semiconductor chips, UVLEDTEK's core products demonstrate strong performance advantages and are widely applied across key sectors:
- New Energy Vehicles: UV LED curing technology enables the formation of insulation films resistant to 3000–4000V, solving breakdown challenges in 800V high-voltage battery systems.
- 5G Communications: UV light sources increase fiber drawing speed by 50%, reduce energy consumption by 70%, and achieve a service life of up to 30,000 hours-10 times that of traditional mercury lamps.
- Public Health: By disrupting microbial DNA/RNA structures, the technology achieves highly efficient sterilization of pathogens such as H3N2 influenza virus and E. coli, replacing chlorine-based and ozone disinfection methods.
- Consumer & Medical Applications: The company is expanding into air and water purification, surface sterilization, medical aesthetics, and plant factory lighting. By 2030, the automotive sterilization module market is expected to exceed RMB 10 billion.
From China's "Core Technology" to Global Supply Chain Leadership
As the global implementation of the Minamata Convention on Mercury approaches full enforcement in 2026, the $20 billion mercury lamp replacement market is accelerating its release. UVLEDTEK is poised to embark on a new technological journey of global expansion.
From laboratories in Optics Valley to the global industrial stage, UVLEDTEK is using ultraviolet light to shape a future of health and sustainable development. As Professor Chen Changqing, Chairman of the company, stated: "We are not only manufacturing semiconductor devices, but also using the power of light to reconstruct the symbiotic relationship between humans and the environment."
As UV LED technology becomes a core solution for global mercury lamp replacement, and as Chinese semiconductor innovation establishes standard-setting influence in emerging sectors, the company's growth trajectory reflects a profound transformation of China's technology role-from a "follower" to an "ecosystem builder."
Within the national strategies of "Dual Carbon" and "Healthy China," UVLEDTEK is drawing the blueprint of a technological future with light as its pen, charting a new frontier for China's advanced semiconductor industry.
