Engineers share: thermal silver paste, LED conductive silver paste use precautions
The friends who produce LEDs know that because of the high requirements for the solid crystal during the single-electrode chip package, the requirements for the use of conductive paste and conductive silver paste in the die-bonding process are extremely strict, although nothing can be seen in the production process. The problem, but there will be abnormalities such as dead lights during the user's use. Therefore, the performance of solid crystal conductive adhesive and conductive silver adhesive will directly affect the performance of LED products and cannot be ignored.
UNINWELL is the world's most complete manufacturer of conductive silver adhesive products. Its conductive silver adhesive has excellent performance, good electrical conductivity, strong shearing force, good rheology and low moisture absorption. Suitable for LED, high power LED, LED digital tube, LCD, TR, IC, COB, PCBA, dot matrix, display, crystal, resonator, solar cell, photovoltaic cell, buzzer, ceramic capacitor, semiconductor discrete device Packaging and bonding of various electronic components and components. Applications range from electronic components, electronic components, board assembly, display and lighting industries, communications, automotive electronics, smart cards/radio frequency identification.
UNINWELL International based on its own experience in the production of conductive silver plastic and the practice of peer customers, the matters needing attention in the use of solid crystal conductive adhesive and conductive silver adhesive are summarized as follows, to mention the fans and friends who produce LED:
1. The transportation process of the manufacturer's conductive silver glue needs to be stored frozen, and a large amount of ice bags or dry ice should be used to wrap the conductive silver glue;
2. Even if the weather is cold, the customer should immediately transfer the conductive silver glue that has just been received into the freezer compartment of 0-5 degrees.
3. Before use, the conductive silver glue is used for 1-3 hours (depending on different conductive silver glue);
4. Add appropriate amount of conductive silver glue in the process for about 2-3 hours. The silver glue on the tin cylinder of the solid crystal machine is recommended to be cleaned every 12 hours.
5. When the conductive silver glue appears to be drawn, it should be replaced no matter how long it is used;
7. After the conductive silver glue reaches the specified point, it needs to be fixed in 2 minutes;
7. When stopping the solid crystal, ensure that the tin drum rotates all the time. If the tin drum with conductive silver glue stops rotating for more than 30 minutes, it is recommended to clean the drum and replace the conductive silver glue;
8. The material after solid crystal is placed in the oven as much as possible within one hour, and the maximum length cannot exceed 2 hours.
Special reminder: the reminder, stirring and use time of conductive glue and conductive silver glue are all matters that must be paid attention to in the process.
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