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COB LED (Chip-on-Board LED) substrates play a vital role in the construction and performance of COB LED modules. Here are some relevant points about COB LED substrates:
1. Definition: COB LED substrate refers to the substrate on which individual LED chips are mounted and interconnected to form a COB LED package. It provides the electrical connection, thermal management and structural support for the LED.
2. Material: COB LED substrates are usually made of ceramics or metals, such as aluminum oxide (Al2O3), aluminum nitride (AlN) or copper clad laminate (CCL). Ceramic substrates provide excellent thermal conductivity and insulation, while metal substrates provide efficient heat dissipation.
3. Thermal management: COB LEDs generate heat during operation, and effective thermal management is critical to maintain their performance and lifetime. COB LED substrates typically have thermal vias or metal layers that help conduct heat away from the LED chip and spread it across the substrate.
4. Electrical connectivity: COB LED substrates have circuit traces or conductive layers that provide electrical connections between LED chips and external power sources. These conductive paths allow electricity to flow through the LED chips, enabling them to emit light.
5. Structural support: The COB LED substrate provides mechanical support for the LED chips and protects them from external stress. They ensure the stability and integrity of COB LED modules, especially during handling and assembly.
6. Mounting options: COB LED substrates can have different mounting options according to application requirements. They can be mounted directly on a heat sink using a thermal interface material (TIM), or attached to a printed circuit board (PCB) for further integration into lighting fixtures or other devices.
7. Optical integration: Some COB LED substrates may have optical components, such as phosphor layers or lens arrays, to enhance light output characteristics. These components aid in color mixing, light distribution and beam shaping.
8. Size and configuration: COB LED substrates are available in various sizes and configurations to meet different lighting applications. Substrate size, LED chip layout and interconnection pattern can vary depending on desired lumen output, color temperature and beam angle.
9. Manufacturing process: The production of COB LED substrates involves sophisticated manufacturing techniques such as thin film deposition, etching and metallization. These processes ensure reliable electrical and thermal paths are formed on the substrate.
10. Advantages: Compared with traditional discrete LED packages, COB LED substrates have several advantages, including higher power density, improved thermal management, better color mixing and compact form factor. They are widely used in general lighting, automotive lighting, horticultural lighting and other applications.
It is important to note that specific technical details and advancements in COB LED substrates may evolve over time as new research and technologies emerge.
Shenzhen Aihongyang Lighting Co., Ltd. is a high-tech energy-saving company specializing in the production of COB LED planar light sources. The company has 6 automated production lines with a daily output of 400K. The main advantageous products are LED lighting matrix packaging and LED lighting lamps. The company relies on LED With many years of experience in LED application in the electronic packaging industry, we have a production team developed by experts, masters and senior engineers. Products and services, dedicated to the application of LED T5, T8, T10 fluorescent lamps, LED ceiling lamps, LED bulb lamps, LED spotlights, LED downlights and other lamps; dedicated to LED light sources and products with low light decay and long life services. Continuous innovation in LED application products. The enterprise adheres to the principle of "integrity and sustainability", treats products with monographs, treats customers with sincerity, and acts as a model of honest management with the determination to build a century-old enterprise. Realize the perfect combination of the company's planar light source and traditional lamps, and contribute high-quality and low-cost products to the LED industry.