Solder resistant silver pasteIt is a type of printed circuit board used for electronic components
Special metal silver pasteIt has excellent conductivity and excellent chemical corrosion resistance. In the electronics industry, using solder resistant silver paste printed circuit boards can improve product quality and stability.
Composition and manufacturing method of solder resistant silver paste
Solder resistant silver paste is mainly made by mixing pure silver and special additives. Silver is the main component of solder resistant silver paste, usually using pure silver with a purity higher than 99.9%. Additives can be organic or inorganic to meet different process requirements.
The manufacturing methods of solder resistant silver paste are divided into two types: chemical method and physical method.
Chemical methods involve reacting with chemical reagents such as ammonia water to process particles into smaller ones
Powdered silver pasteThe physical law is to deposit silver atoms on a substrate to form a thin film through techniques such as photoelectric evaporation.
Technical performance of solder resistant silver paste
1. Good conductivity
Solder resistant silver pasteWe can provide printed circuit boards with high conductivity. From a microscopic perspective, there are physical and chemical reactions between silver particles and substrates to form a solid connection microstructure, providing an ideal electrical signal transmission path and stability.
2. Good welding performance
The solder resistant silver paste circuit board has excellent soldering performance. Due to the easy softening and fusion of silver particles at high temperatures, a strong connection is formed between the silver particles and the substrate, which can withstand various welding techniques required by the electronic industry, such as surface adhesion welding technology, hot air welding technology, etc.
3. Good chemical corrosion resistance
Solder resistant silver paste can maintain stable conductivity for a long time in environments with strong chemical properties of oxidants and reducing agents, without oxidation or corrosion, thereby enhancing the stability and reliability of printed circuit boards.
4. Wide applicability
Solder resistant silver paste can be applied to various printed circuit board processing processes, including single-sided printed boards, double-sided printed boards, multi-layer boards, etc. Whether it is low-temperature hot air welding, hand welding, or surface adhesion welding, heat-resistant silver paste can provide stable connection performance.
1. Welding resistant silver paste requires high humidity in the environment, and prolonged exposure to moisture or humid air should be avoided as much as possible.
During the preparation process, the selection of reagents and processing procedures should strictly comply with relevant process specifications to ensure product consistency and quality.
During use, the thickness and printing method of the silver paste should be strictly controlled to ensure stable product performance and quality.
During maintenance and upkeep, care should be taken not to use chemicals or heavy metals that can oxidize or corrode the solder paste.
epilogue
Solder resistant silver paste has a wide range of application prospects in the electronics industry,
Solder resistant silver pasteThe main function of is to mix resin powder, alloy powder, lubricants and other materials, and add appropriate additives to make a slurry that can play an important role in the welding process.
Specifically, the functions of solder resistant silver paste include:
Mixing resin powder and alloy powder: Resin powder and alloy powder in heat-resistant silver paste are key materials for forming solder joints. They can mix resin powder and alloy powder from different materials together to form a strong solder joint.
Increasing resistance: The resistance material in the solder paste can help reduce the heat during the welding process, thereby reducing damage to the resin and alloy powder.
Provide good fluidity: The flowable material in the solder resistant silver paste can help form uniform solder joints during the welding process, thereby improving welding quality and reliability.
Improving welding stability: The stability material in the heat-resistant silver paste can help improve the welding stability during the welding process and reduce the occurrence of weld defects.
Provide sufficient strength: The strength material in the heat-resistant silver paste can help improve the welding strength during the welding process, thereby ensuring the welding quality.
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