First, the technical background
LED light source is the focus of the 21st century light source market. As a new type of energy-saving and environmentally-friendly green light source product, LED is bound to be the future development trend, and it is called the fourth generation new light source revolution. It has the advantages of long life, high luminous efficiency, high stability, good safety, no mercury, no radiation, low power consumption and so on. However, the lack of high-efficiency and low-cost integrated light source industry technology is currently the bottleneck restricting the rapid development of white LED indoor general illumination at home and abroad, and is a common problem to be solved.
The packaging technology "COMMB-LED high-efficiency integrated surface light source" is a unique and innovative technology form of the LED industry. It has independent intellectual property rights and is protected by patent clustering formed by numerous patents and software copyrights. Its high cost performance characteristics. It will gradually become the mainstream packaging technology for the entire LED indoor lighting source.
The meaning of COMMB-LED light source technology is explained as the high-efficiency integrated surface light source technology of LED chip directly attached to the high-reflection mirror metal substrate. This technology eliminates the bracket concept, electroless plating, no reflow soldering, no patching process, so The process is reduced by nearly one-third and the cost is saved by one-third.
Second, the domestic LED industry technology level
Currently, LED packaging is available in a variety of forms. However, the overall application of semiconductor packaging technology to adapt to different applications, different dimensions, heat dissipation schemes and lighting effects, the package form is also different. LEDs are classified into package types, such as Lamp-LED, TOP-LED, Side-LED, SMD-LED, High-Power-LED, Flip Chip-LED, and COB LED.
In general, COB LED packaging technology is the mainstream technical solution for LED general lighting industry that is recognized by domestic and foreign industries. The LED general lighting industry in the world is striving to find cost-effective production solutions.
However, in the above package form, no matter what kind of LED, it is necessary to design a reasonable package form for different application occasions and lamp types, because only the cost performance and the comprehensive performance of the light source can be packaged as the light source product of the terminal, so that a good practical application can be obtained. Different from the above several package forms, the high-efficiency and low-power integrated package indoor lighting source built by our company's 39 patent groups adopts the vertical integration and packaging technology of chips and lamps, and is self-contained, widely used in indoor lighting such as LED lights. Tube , LED bulb, downlight, etc. It has a high degree of integration, greatly reducing the packaging process and the assembly process of the luminaire, improving the automation and operation efficiency, reducing the cost and improving the reliability of the product quality. Not only the products are environmentally friendly, but also the production process is clean, low noise and no pollution.
Third, the development trend of LED package light efficiency
As can be seen from the above figure: In 2011, the single LED light efficiency has reached the package level of 150Lm/W, and it is expected to reach the level of 200Lm/W by 2013. It will be three times that of the current fluorescent energy-saving lamps! Therefore, the use of high-efficiency dysfunction has been eliminated, and cost reduction has become a major obstacle to popularization.
Fourth, the principle of COMMB-LED technology
This "high-efficiency COMMB-LED surface light source integrated packaging technology" is a new technology formed after deep excavation of COB LED packaging technology. The imported mirror aluminum substrate with high reflectivity is used as the direct carrier of LED chip, through independent innovative insulating injection electrode. Structure, LED solid crystal, wire bonding, dispensing process innovation of the entire industry chain, the use of self-developed intelligent special plane to form a core software and hardware patent technology, fully improve the chip's excitation efficiency, reduce light loss and thermal resistance, Excluding complex cup injection molding and PCB, SMT, reflow soldering and other processes, to meet the high efficiency integration requirements of the current LED industry, creatively solve the industrial bottleneck of high quality, long life and low cost of indoor general lighting.
Fifth, the technical level reached by COMMB-LED
"High-efficiency COMMB-LED surface light source integrated packaging technology" is a new type of COB-LED package light source technology developed on the basis of the existing COB-LED packaging technology. The technology fully combines the high luminous efficiency of indoor general illumination. No glare. No flicker. The use characteristics of high-definition finger, from chip to package to the whole system of lamps, vertical integration of technology in the whole industry chain; greatly reducing and optimizing the process, The integrated packaging efficiency is improved, the cost is reduced, the reliability is improved, and the one-time investment cost of the device is reduced, so that China has broken through the foreign patent packaging in the field of white LED package COB-LED technology and entered the world first, forming a unique Chinese The COMMB-LED integrated surface light source technology.
Sixth, COMMB LED technology product packaging structure
At present, the LED electrode holder in the LED tube illuminator is the carrier of the light-emitting chip and the current-introducing device, and the main external transmission channel of heat during illuminating is the core functional device in the LED package. The LED bracket used in the original structure is integrally stamped and formed by a copper plate, and then a silver plating process is performed. With this process technology, the material utilization rate is low. At present, the utilization rate of materials in the industry is only about 30%, and the waste is large, resulting in high cost of LED products. On the other hand, due to the low light-emitting efficiency of the chip, the LED luminous intensity and service life are affected, which affects a wide range of products. It is used, and the production process is complicated and the processing efficiency is low. No ideal solution has been found at home and abroad.
The product of this project adopts the light source packaging technology of the chip directly attached to the aluminum wire and the vertical integration of the chip electrode and the reflector, which not only reduces the thermal resistance on the heat transfer channel by 30%, but also improves the light extraction efficiency by 15% and the manufacturing cost by 30%. Double the reliability and reduce a large number of PCB processes with strong chemical contamination for the entire lamp. As shown below:
COMMB-LED high light efficiency integrated surface light source technology package structure
7. Comparison of process advantages between COMM and peers
1) LAMP-LED production process:
2) SMD-LED process flow:
3) COB power type planar light source product process
The most comprehensive introduction of LED PCB
We are a professional LED PCB manufacturer and assembler in China, In this article, we would like to introduce in detail what is LED PCB, the materials used in manufacturing and LED circuit boards manufacturing, the application of LED Printed Circuit Boards and so on.
In China, there are many PCB manufacturers and suppliers. Jinghongyi PCB is one of the LED PCB Board manufacturers. We only provide LED PCB fabrication services. LED PCB design is not our specialty and business scope.
LED PCB Board Introduction
LED PCB has many other names, such as LED PCB board, LED circuit, LED Circuit Board, led printed circuit boards, PCB board for LED.
In a sense, LED PCB and Aluminum PCB belong to the same kind of PCB products, because their uses and materials are mostly the same.
With the popularization and widespread use of industrial lighting and civil lighting, whether outdoor or indoor, family or commercial buildings and factories, lighting provides the guarantee of its normal operation.
Of course, nowadays, with the development of human society, environmental pollution has become a difficult problem in the world. In order to reduce the consumption of coal, such as coal used for power generation in thermal power plants, coal combustion pollutes the atmosphere very seriously. In order to save energy and protect the environment, LED lights and previous lighting methods have great advantages, except for energy. Besides providing brighter lights, it also contributes to environmental protection.
LED PCB Meaning
LED circuit board is a kind of Printed Circuit Board.
LED PCB Board manufactureing
Both LED aluminium PCB and FR-4 fiberglass circuit board belong to PCB. To say differently, only compare LED aluminium substrate with FR-4 fiberglass circuit board.
LED aluminium substrate is printed on the surface of aluminium material with better thermal conductivity, and then weld electronic components on it.
In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.
The voltage drop across an LED is approximately constant over a wide range of operating current; therefore, a small increase in applied voltage greatly increases the current.
Very simple circuits are used for low-power indicator LEDs. More complex, current source circuits are required when driving high-power LEDs for illumination to achieve correct current regulation.
An LED PCB board tends to generate a high volume of heat, making it difficult to cool via traditional means.
LED PCB Board Material - LED PCB raw material, LED bulb PCB raw material, LED strip PCB material
Metal core PCBs are often chosen for LED applications because they have enhanced heat dissipation capabilities. In particular, aluminium is usually used to make circuit boards for LED lamps. Aluminum substrates usually consist of thin layers of thermal conductive dielectrics that can be transported and have much more efficient heat dissipation than conventional rigid PCBs.
Compared with other electronic components, LED generates more heat, which requires PCB to heat very well. For this special feature, Metal Core PCB is often used in LED circuit boards, especially Aluminum Core PCB .
LED Lighting PCB Assembly
Seeking LED PCB and Assembly? LED PCB Manufacturing and assembly; Led board made based on your PCB files. Turn-key services; 100% inspection.
Applications of LED PCB
PCB LED lights can be incorporated into numerous lighting applications due to their combination of excellent energy efficiency, low cost and maximum design flexibility.
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Automotive headlights
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Airport runway landing lights
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Lighting used in military field
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Street lighting
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Highway tunnel lighting
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Photovoltaic (solar) lighting
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Flashlights and lanterns
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Traffic and signal lighting
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Lighting in hospital operating rooms
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High growth plant lighting
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Highway tunnel lighting
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Solar power products
If you have any questions about LED PCB Board, Please feel free to send us email. If you have final Gerber for production, welcome your inquiry.
Additional Information
Aluminum PCB for LED Light/Lamp/Tube
Aluminum PCB for LED
Aluminium Base LED PCB
LED Metal Core PCB
Metal Core PCB for LED
PCB industry cut into LED PCB heat sink aluminum substrate
Double Sided Aluminum PCB
LED PCB
LED PCB,LED Circuit Board,LED PCB Board,LED Printed Circuit Board
JingHongYi PCB (HK) Co., Limited , https://www.pcbjhy.com
