Research and Development of Silver Conductive Paste

Silver and its compounds as functional phasesconductive pasteWidely used in the electronics industry. Silver powder, as the main functional phase, has become the preferred choice for thousands of electronic paste products. This article will explore in detail the research and application of silver conductive paste in electronic products, and introduce some methods currently used to improve conductivity and reduce costs.

1. Advantages of silver conductive paste
The reasons for the widespread use of silver conductive paste in electronic products are multifaceted. Firstly, the relatively low price of silver is beneficial for cost control. Secondly, the silver layer can form a continuous, dense, and uniform thin layer on the ceramic surface, with excellent adhesion. Therefore, in ceramic conductive layers of the same area and thickness, silver electrodes can provide a larger capacitance than other electrode materials.
2. Defects in silver conductive paste
However, silver conductive paste has an important defect in the use of electronic products, which is that it can cause electron migration under the action of an electric field, resulting in a decrease in conductivity and affecting the service life of the device. The current solution is mainly to improve the conductivity of silver paste by improving the size and morphology of silver powder particles, in order to prepare a more sintered and denser conductive paste with better conductivity.

3. Methods to improve conductivity
be directed against Silver conductive pasteResearchers have improved the conductivity of silver powder particles by improving parameters such as size and morphology to address the issue of electron transfer. Reasonably controlling the grading of conductive silver powder microparticles and nanoparticles can prepare more sintered and denser conductive slurries with better conductivity.
4. Strategies for reducing the use of silver powder
In order to avoid the inherent defects of silver migration and reduce the cost of silver conductive paste, researchers have also adopted other strategies. On the one hand, silver powder is developing towards flake and nanoscale directions to reduce the amount of precious metal silver powder and improve its conductivity. On the other hand, by doping base metals (such as Ni, Al, Cu, etc.) or other conductive substances into silver powder to make mixed or composite powders, the amount of precious metal silver powder used is reduced, and the production cost of the slurry is lowered.
5. Future development direction
There are still many directions worth exploring in the research and development of silver conductive paste. For example, further improving the particle size and morphology of conductive silver powder to enhance the conductivity of silver paste. In addition, searching for better doping materials to reduce the amount of precious metal silver powder and achieve cost control. In addition, exploring new conductive materials and synthesis methods provides more choices and possibilities.
Conclusion:
         Silver conductive pasteIt has important application value in electronic products. By improving the size and morphology of silver powder particles and doping with other conductive substances, the conductivity of silver conductive paste can be further enhanced and costs can be reduced. Future research will focus on optimizing the performance of conductive silver powder and seeking more opportunities for innovation and development.