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Advantages and disadvantages of LED fixed crystal silver adhesive

Time： 2023-05-12 13:34

【Description】 When selecting LED solid crystal silver adhesive, attention should be paid to factors such as thermal conductivity, cooling effect, and price of the material, and suitable solid crystal silver adhesive should be selected based on the specific needs of LED products

LED silver glue is a very important material in the process of LED packaging and die bonding. LED silver bonding adhesive can be used to fix LED chips, as well as connect chips to PCB boards. Therefore, choosing a high-quality LED silver glue has a crucial impact on the performance and life of the entire LED product.

1. Pros

The luminous efficiency of LED products can be improved because it can greatly reduce the temperature difference between the LED chip and the PCB board. Secondly, it can make the fixation of the LED chip more firm and less susceptible to damage by external forces. In addition, it has good thermal conductivity, which can effectively transfer the heat of the LED chip to the PCB board, so as to achieve the effect of cooling.

2.L Cons

There are also some disadvantages, such as it is more expensive than other die bonding materials, which reduces the production cost of LED products. In addition, if the LED silver bonding glue is not used properly, it may cause the rubber to deteriorate or crack, thereby reducing the service life of the LED product.

3. Selection criteria

The selection of LED solid crystal silver adhesive needs to pay attention to the thermal conductivity, cooling effect, price and other factors of the material, and according to the specific needs of LED products to choose the appropriate solid crystal silver glue. Generally speaking, when choosing solid silver glue, it is necessary to choose standardized and stable quality materials as much as possible to reduce the changes caused by different material quality.

4. Applied to the packaging of LED products

With the continuous development of the LED market, the application range of LED is becoming more and more extensive, and LED solid crystal silver adhesive has also become an indispensable material in the packaging of LED products. Especially in the application field that requires high-power LED products, the importance of LED solid crystal silver adhesive is more prominent.

5. Future development trends

With the continuous expansion of the scale of the LED market, the LED solid crystal silver glue industry is also developing rapidly. In the future, with the advancement of technology, the performance and quality of LED crystal bonding silver glue will continue to improve, and the price will gradually decrease. At the same time, with the continuous expansion of the application field of LED solid crystal silver adhesive, the market demand of LED solid crystal silver adhesive will also continue to grow.

In short, the selection of LED crystal bonding silver glue needs to pay attention to the thermal conductivity, cooling effect, price and other factors of the material, and according to the specific needs of LED products to choose the appropriate crystal bonding silver glue. In the long run, the rapid growth of the global LED market will drive the development of the LED solid crystal silver adhesive industry, and with the continuous upgrading of technology, LED solid crystal silver adhesive will also usher in a broader market prospect. It is essentially a silver conductive adhesive with strong adhesion and high electrical conductivity, which can be used to fix LED chips, and connect metal wires and PCB boards.

1. Types and ingredients

At present, there are various types of LED solid crystal silver adhesives on the market, such as epoxy resin, silicone, etc. The ingredients are mainly mixtures containing conductive particles, commonly used silver powder, carbon black, alumina, etc.

2. Fields of application

Due to the characteristics of LED crystal bonding silver glue with electrical conductivity, thermal conductivity, high temperature resistance, vibration resistance, etc., it is widely used in the LED industry, such as: automotive lighting, high-brightness LED lamp heads, lawn lights, etc. At the same time, it is also used in military, aerospace and other industries.

3. Curing method

Curing methods are generally divided into two types: thermal curing and ultraviolet curing. Thermal curing needs to be hardened at high temperatures above 150°C, which takes a long time; Ultraviolet curing only requires a UV lamp to be irradiated for a certain period of time.

4. Precautions for use

Precautions should be paid to the following: prevent the silver glue from drying out, avoid skin contact, maintain good ventilation, avoid oral or inhalation, and need to be stored in a dry place with a suitable temperature.

5. Advantages

Compared with other die bonding materials, it has the advantages of good conductivity, good heat dissipation effect, high reliability, long service life, and little impact on LED light efficiency.