Precautions for the use of LED conductive silver paste
Friends who produce LEDs all know that because of the extremely high requirements for solid crystals during single-electrode chip packaging, the use of conductive adhesives and conductive silver adhesives during the solid crystal process is also very strict, although nothing can be seen in the production process Problems, but there will be abnormal situations such as dead lights during user 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 product line. Its conductive silver adhesive has excellent performance, good conductivity, strong shear force, good rheology, and low moisture absorption. Suitable for LED, high-power LED, LED digital tube, LCD, TR, IC, COB, PCBA, dot matrix, display screen, crystal oscillator, resonator, solar cell, photovoltaic cell, buzzer, ceramic capacitor, semiconductor discrete devices Packaging and bonding of various electronic components and components. Applications include electronic components, electronic components, circuit board assembly, display and lighting industries, communications, automotive electronics, smart card / radio frequency identification and other fields.
UNINWELL International summarizes the matters needing attention during the use of solid crystal conductive adhesive and conductive silver adhesive based on their own experience in producing conductive silver adhesive and the practice of customers in the same industry.
1. The shipping process of the manufacturer's conductive silver glue needs to be frozen and stored, and a large amount of ice packs 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 the refrigerator at 0-5 degrees;
3. Before use, the thawing time of conductive silver glue is 1-3 hours (according to different conductive silver glue);
4. Appropriate amount of conductive silver glue is added in about 2-3 hours during use. The silver glue on the tin drum of the solid crystal machine is recommended to be cleaned every 12 hours;
5. When the conductive silver glue is drawn, it should be replaced no matter how long it is used;
7. After the conductive silver glue point reaches the specified point, it needs to be solid crystal within 2 minutes;
7. When stopping solid crystal, make sure that the tin drum keeps rotating. If the tin drum with conductive silver glue stops rotating for more than 30 minutes, it is recommended to clean the glue drum and replace the conductive silver glue;
8. The material after solid crystal should be put into the oven within one hour as much as possible, and the longest cannot exceed 2 hours.
Special reminder: the material, stirring and use time of conductive adhesive and conductive silver adhesive are all matters that must be paid attention to in the process.
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