High-reliability hardware optimized for edge deployment, optical control nodes, and sensor interfaces in environmental treatment systems.
Analyzing the shift from chemical and low-pressure mercury vapor lamps to AlGaN-based UVC LED modules in Gitarama (Muhanga District) and the wider East African Community.
As the primary logistical bridge connecting Kigali with the western provinces of Rwanda, Gitarama (Muhanga) is undergoing rapid urbanization. Traditional municipal water systems face challenges from seasonal agricultural runoff. Integrating high-performance UVC LED modules into decentralized water purification systems offers instant, chemical-free sterilization (99.99% pathogen inactivation rate) directly at the point of consumption.
Local clinics and regional hospitals, such as Kabgayi Hospital in Gitarama, require advanced sanitization protocols to limit Healthcare-Associated Infections (HAIs). Our UVC LED modules emit localized, concentrated light at 265nm to 275nm, destroying the DNA/RNA structure of airborne tuberculosis and multidrug-resistant pathogens without generating toxic ozone.
Gitarama's position as a regional hub for coffee, cassava, and maize processing makes agricultural cold-chain security vital. Integrating UVC arrays inside packaging lines and cold rooms suppresses mold and bacterial growth, dramatically extending product shelf-life and meeting strict EAC export sanitation guidelines.
Developing sub-Saharan markets like Gitarama are bypassing transitional mercury-discharge lamps and moving straight to solid-state UVC semiconductors. This technology leap is driven by lower operating voltages (enabling solar-powered configuration), instant on/off cycling, and the absence of hazardous materials. Because Gitarama suffers from periodic grid fluctuations, heavy glass-tube mercury lamps are prone to mechanical and thermal shock. Solid-state UVC LEDs, mounted on robust aluminum-core PCBs, withstand physical impact and function seamlessly on solar-plus-battery off-grid systems.
Globally, the enforcement of the Minamata Convention on Mercury has accelerated the phase-out of traditional gas-discharge UV lamps. As global factories transition away from mercury, specialized solid-state SMT manufacturing facilities like Corexis are stepping up to supply ruggedized, long-lasting UVC modules that function in harsh tropical climates, marked by high relative humidity and fluctuating ambient temperatures.
Corexis Memory Technology Co., Ltd. is a highly diversified, advanced electronics manufacturer specializing in high-speed computing modules, multilayer PCBs, and high-intensity optoelectronics. Established in 2016, our ISO9001:2015-certified facility spans 21,800 m² and integrates state-of-the-art SMT production lines with precision testing systems.
Our deep expertise in semiconductor package routing, thermal dissipation management, and advanced substrate engineering enables us to manufacture high-yield UVC LED disinfection modules. We bridge the gap between complex semiconductor design and rugged physical deployment in challenging environments like Gitarama.
Partner With Us
Achieving optimal wall-plug efficiency (WPE) and thermal dissipation for sustained photon output.
Our current development targets the aluminum gallium nitride (AlGaN) thin-film crystalline quality. High-density defects in the AlGaN layers act as non-radiative recombination centers. By improving buffer layer matching on sapphire substrates, we aim to increase internal quantum efficiency (IQE) by 18% over the next 18 months, boosting total module radiant flux.
UVC LEDs convert over 90% of electricity into heat. If junction temperatures exceed 80°C, peak wavelengths shift and operational life falls drastically. We implement copper-core metal-clad PCBs (MCPCBs) paired with high-performance copper heat sinks. This design keeps thermal resistance below 6 K/W, ensuring long life in high-temp environments.
Using Rockchip RK3588S NPU development boards, we build intelligent driver circuits. These modules monitor system metrics (ambient temperature, UVC intensity, and water flow rate) in real time. Systems automatically dim UVC intensity during low-flow periods, saving energy and extending module lifetimes to over 15,000 hours.
For a 99.99% (log 4) reduction of common waterborne pathogens in Gitarama's water supply, the system must deliver target UVC doses (expressed in millijoules per square centimeter, mJ/cm²). The table below lists the required dosage levels achieved by our 265nm AlGaN UVC LED modules at standard flow rates.
| Pathogen Type | Example Microorganism | 99% (Log 2) Dose (mJ/cm²) | 99.99% (Log 4) Dose (mJ/cm²) | UVC LED Module Power Required |
|---|---|---|---|---|
| Enteric Bacteria | Escherichia coli (E. coli) | 3.0 | 6.6 | 12mW Module @ 2 L/min |
| Protozoan Oocysts | Cryptosporidium parvum | 5.6 | 12.0 | 24mW Array @ 2.5 L/min |
| Viral Agents | Rotavirus (Waterborne diarrhea) | 18.0 | 36.0 | 48mW High-Power Array @ 2 L/min |
| Spore Formers | Bacillus subtilis spores | 22.0 | 50.0 | 80mW Custom System @ 1.5 L/min |
Integrated system configurations supporting the global migration to solid-state UV disinfection technology.
Custom high-output arrays mounted inside stainless steel reactors. Ideal for Gitarama decentralized municipal water kiosks, maintaining pathogen-free community reservoirs.
High-intensity LED arrays configured for central HVAC duct systems. Effectively neutralizes airborne viruses in schools, office parks, and hospitals.
Waterproof IPX8-rated linear UVC modules designed for agricultural processing belts. Provides constant surface sterilization for raw produce.
Compact, high-density optical packages designed for medical autoclaves, achieving rapid sanitization without high temperatures.
Addressing essential design, deployment, and engineering queries from system integrators.
The optimal absorption spectrum of bacterial and viral nucleic acids peaks between 260nm and 265nm. Traditional mercury vapor lamps produce a fixed 253.7nm line, which is less efficient. Our custom AlGaN UVC LED modules emit specifically within the 265nm–275nm band. This aligns with target pathogen DNA/RNA absorption curves, maximizing sterilization performance per watt.
UVC LEDs generate substantial thermal energy at their junction. To prevent thermal degradation in warm, humid regions, we utilize copper-base metal core PCBs (MCPCBs) combined with high-grade thermal interface material (TIM). For higher-wattage configurations, we integrate dedicated copper motherboard CPU cooling modules. This maintains the LED junction temperature well below safe limits.
Our engineering team performs a rigorous aging and sorting protocol on all incoming semiconductor dice. Our testing includes incoming material inspection (IQC) and continuous reliability chamber tests under high humidity. Additionally, our intelligent driver boards implement constant-current protection. This protects the LEDs from voltage surges, which are common in developing electricity grids.
Yes. Unlike traditional UV lamps that require high-voltage AC ballast inputs, our UVC LED modules run on low-voltage DC (typically 12V, 24V, or 48V). This simplifies integration with solar panels and battery storage, making them ideal for off-grid municipal installations and remote medical centers across Rwanda.
We offer full OEM and ODM services. This includes custom PCB trace layouts, variable power outputs, private labeling, and custom heat sink designs. System designers can request specific multi-channel configurations that integrate both UVC (for disinfection) and UVA/UVB (for monitoring or secondary oxidation reactions) on a single flexible or rigid board.
Standard and specialized memory kits, SMT PCB assemblies, and cooling modules vital for building intelligent environmental control systems.
Get in touch with our team today to discuss customization options, request engineering samples, or schedule a tour of our 21,800 m² manufacturing facility.
Corexis Memory