Research on Stability Enhancement Technology of Silver Palladium Powder in Electronic Slurry

With the rapid development of the microelectronics industry,Silver palladium conductor pasteAs an important conductive material, it has been widely used in fields such as printed circuit boards (PCBs) and electronic ceramics. Silver palladium alloy powder has become a key component in electronic pastes due to its stable chemical properties and excellent conductivity. However, how to improve the stability of silver palladium powder in electronic pastes has always been a focus of attention for researchers. This article will explore several methods to improve the stability of silver palladium powder and introduce the production of advanced institute (Shenzhen) Technology Co., LtdResearch Platinum YB8501 Silver Palladium SlurryAnalyze as a case study.

Methods for improving the stability of silver palladium powder

1. Optimize the preparation process

   Silver palladium powderThe preparation process directly affects its morphology, particle size, and distribution, which in turn affects the stability of the slurry. By optimizing the preparation process, such as selecting appropriate reactant concentrations, dispersant dosages, reaction temperatures, and pH values, the stability and dispersibility of silver palladium powder can be significantly improved. For example, experiments have shown that under the conditions of using a pouring mixing method, Arabic gum as a dispersant, and reducing silver nitrate and palladium nitrate with ascorbic acid, the reaction temperature and the amount of dispersant have a significant impact on the morphology and particle size of silver palladium powder particles. The optimized process conditions are: reactant concentration of 0.5mol/L, molar ratio of reducing agent to oxidizing agent of 2:1, mass ratio of Arabic gum to oxidizing agent of 0.01:1, reaction temperature of 20 ℃, heat treatment temperature of 450 ℃, and insulation time of 4h. The Ag Pd alloy powder particles prepared under these conditions are nearly spherical, with a smooth surface and good dispersion. The particle size distribution is 0.6 μ m-1.0 μ m, the average particle size is 0.75 μ m, the tap density is 2.8g/cm ³, and the yield is 91.43%, which meets the requirementselectronic pasteRequirements for its performance.

2. Adjust the silver palladium ratio

   The ratio of silver to palladium has a significant impact on the properties of the slurry. Silver has good electrical conductivity, while palladium acts as an antioxidant that can prevent silver from being oxidized in certain environments. By adjusting the silver palladium ratio, the oxidation resistance and stability of the slurry can be improved while ensuring conductivity. useResearch Platinum Brand YB8501 SlurryFor example, experiments were conducted on slurries with silver palladium ratios of 7:3, 8:2, and 9:1, and their electrical conductivity was measured. The results showed that with the increase of silver palladium ratio, the conductivity was significantly improved. However, increasing the proportion of silver will affect the antioxidant effect of palladium, thereby affecting the stability of the conductor paste. Therefore, in practical applications, it is necessary to balance the silver palladium ratio according to specific needs to achieve optimal performance.

3. Control the preparation conditions of slurry

   The preparation conditions of the slurry, such as solvent ratio, selection of viscosity modifiers, particle size and distribution, curing conditions, and storage conditions, all have a significant impact on the stability of the slurry. By precisely controlling the ratio of solvent to solid particles, selecting appropriate viscosity modifiers (such as CMC, PVA, etc.), optimizing particle size and distribution, strictly controlling curing temperature and time, and standardizing storage conditions (low temperature, drying, avoiding light), the viscosity stability and long-term stability of the slurry can be effectively improved.

Case study of YB8501 silver palladium paste from Yanbo brand

Advanced Institute (Shenzhen) Technology Co., LtdThe YB8501 silver palladium paste produced by Yanbo brand has occupied a place in the market with its excellent conductivity and stability. The slurry adopts advanced preparation technology and optimized silver palladium ratio, ensuring its high performance and stability. The conductivity of slurries with different silver palladium ratios was measured using a four probe tester. The results showed that as the silver palladium ratio increased, the conductivity significantly improved. However, considering the requirements for antioxidant capacity and stability, the YB8501 slurry of the Research Platinum brand was carefully adjusted in the formula design to achieve the best performance balance by adjusting the silver palladium ratio.

Data comparison and analysis

Taking the YB8501 slurry of Yanbo brand as an example, when the silver palladium ratio is 7:3, the conductivity of the slurry is relatively low, but the antioxidant capacity and stability are good; When the silver palladium ratio increases to 9:1, the conductivity significantly improves, but the antioxidant capacity and stability decrease. By comprehensively considering factors such as conductivity, antioxidant capacity, and stability, the YB8501 slurry of the Research Platinum brand has chosen an appropriate silver palladium ratio to ensure its excellent performance in various application environments.

conclusion

Silver palladium powder inelectronic pasteThe improvement of stability in the process requires comprehensive consideration of multiple factors such as preparation technology, silver palladium ratio, and slurry preparation conditions. By optimizing the preparation process, adjusting the silver palladium ratio, and controlling the preparation conditions of the slurry, the stability and dispersibility of silver palladium powder can be significantly improved, thereby enhancing the overall performance of the electronic slurry. The YB8501 silver palladium paste produced by Advanced Institute (Shenzhen) Technology Co., Ltd. has provided strong support for the development of the microelectronics industry with its excellent performance and stability.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.