How to make LED aluminum substrate

The following is the reply from Wang, a photoelectric engineer. I wonder if it is right?

Catalogue of led aluminum substrates

led aluminum substrate

Characteristics of LED aluminum substrate

Overall analysis of LED aluminum substrate industry

Thermal conductivity of led aluminum substrate

Classification of led aluminum substrates

Insulating layer of LED aluminum substrate

Application of LED aluminum substrate

Edit the LED aluminum substrate in this section.

The advent of LED aluminum substrate products has opened up the development of heat dissipation application industry. Due to the heat dissipation characteristics of LED aluminum substrate and its advantages of high heat dissipation, low thermal resistance, long service life, voltage resistance, etc., with the improvement of production technology and equipment, the price of products is accelerated and rationalized, thus expanding the application fields of LED industry, such as aluminum substrate for household appliances, aluminum substrate for automobile lamps, aluminum substrate for street lamps, aluminum substrate for outdoor large billboards and so on. Recently, the successful development of LED aluminum substrate will provide services for indoor lighting and outdoor lighting products, and make the LED industry have a broader market field in the future. Gold-plated aluminum substrate

In the next five years, China will also promote LED aluminum substrate as a major project, and the Ministry of Science and Technology has also approved Shenzhen, Jiangsu, Zhejiang, Dalian and Chongqing as LED aluminum substrate industrialization bases. According to the goals of these five industrial bases, by 20 12, the output value of China's entire LED industry will exceed 200 billion yuan. Driven by the emerging application market, the market scale of LED aluminum substrate has grown rapidly in recent years. LED aluminum substrate refers to a wide range of finished products, including: high-power, LED street lamps, spotlights, wall lamps, buried lamps, LED fluorescent lamps and so on. LED aluminum substrate includes LED aluminum substrate, LED copper substrate and LED iron substrate. In the domestic market, aluminum substrates occupy most of the market share, and they are loved by the majority of manufacturers because of their high pressure resistance and low thermal resistance.

Edit the characteristics of LED aluminum substrate in this section.

1. Adopt surface mount technology (SMT); Oil film ring aluminum substrate

2. In the circuit design scheme, the problem of thermal diffusion is effectively dealt with; 3. Reduce the working temperature of the product, improve the power density and reliability of the product, and prolong the service life of the product; 4. Reduce product volume, hardware and assembly cost; 5. Replace the fragile ceramic substrate for better mechanical durability. LED aluminum substrate is suitable for: products are widely used in communication, electric power, electronics, medical devices, mechanical equipment, lighting and other fields.

Edit the overall analysis of LED aluminum substrate industry in this paragraph.

shuangmianlvjiban

The products of LED aluminum substrate cover the whole industry of commercial lighting, indoor lighting and other lighting products. On the whole, LED aluminum substrates will continue to develop at a high speed in the next few years, and the export volume will increase steadily, but the export growth rate will decline. Due to the sustained economic development, domestic sales have ushered in a period of rapid growth. However, the rapid development of LED aluminum substrate industry in China in recent five years has also caused fierce competition today. Due to the related technology and heat dissipation performance of LED lighting, the development of LED in the domestic market is slow, and most of them are used for export, which constantly gives space and time for the development of LED aluminum substrates. In the future, under the strong guidance of the country, the technology of LED aluminum substrate will be more and more perfect, and the domestic demand will be greater and greater.

In this section, edit the thermal conductivity of led aluminum substrate.

Thermal conductivity diagram of aluminum substrate (5 sheets) The thermal conductivity of led aluminum substrate is related to the insulating layer in the middle of aluminum substrate (generally PP, now there is thermal grease, etc. ) is one of the three standards to measure the quality of aluminum substrate (thermal resistance and voltage resistance are the other two properties). After aluminum plate is pressed, the thermal conductivity of aluminum substrate can be measured by testing instrument. Current ceramics, copper, etc. Usually those with high thermal conductivity. However, due to the cost problem, electronic aluminum substrates are the mainstream in the market at present, and the corresponding thermal conductivity of aluminum substrates is a parameter that everyone cares about. The higher the thermal conductivity, the better the performance.

Edit the classification of led aluminum substrates in this section.

Led aluminum substrates are divided into fluorescent lamp aluminum substrate, street lamp aluminum substrate, downlight aluminum substrate, wall lamp aluminum substrate, spotlight aluminum substrate, energy-saving lamp aluminum substrate, electrodeless lamp aluminum substrate, ceiling lamp aluminum substrate, wall washing lamp aluminum substrate, bulb lamp aluminum substrate, tunnel lamp aluminum substrate, floodlight aluminum substrate, floodlight aluminum substrate, high-power aluminum substrate, low-power aluminum substrate, guardrail tube aluminum substrate and neon lamp aluminum substrate. Aluminum base material for kitchen lamps, corridor lamps, buried lamps, bile lamps, industrial and mining lamps, bridge lamps, floor tiles and stair lamps.

Edit the insulation layer of LED aluminum substrate in this section.

The insulation layer of LED aluminum substrate is the core technology of aluminum substrate, which mainly plays the role of bonding, insulation and heat conduction. The insulating layer of aluminum substrate is the biggest thermal barrier in power module structure. The better the thermal conductivity of the insulation layer, the more conducive to the diffusion of heat generated when the device works, and the more conducive to reducing the working temperature of the device, thus achieving the purposes of increasing the power load of the module, reducing the volume, prolonging the service life and improving the power output.

Edit the purpose of LED aluminum substrate in this paragraph.

Purpose: Power hybrid integrated circuit. 1, audio equipment: input, output amplifier, balanced amplifier, audio amplifier, preamplifier, power amplifier, etc. 2. Power supply equipment: switching regulator, DC/AC converter, switching regulator, etc. 3. Communication electronic equipment: high-frequency amplifier, filter and transmitter circuit. 4. Office automation equipment: motor drivers, etc. 5. Automobile: electronic regulator, igniter, power controller, etc. 6. Computer: CPU board, floppy drive, power supply equipment, etc. 7. Power module: converter, solid state relay, rectifier bridge, etc.