What factors will affect the performance of high standard sealed electrode paste?
High security dense ceramic paste for sealing is a key material used in electronic component packaging, playing an important role in ensuring the electrical insulation, mechanical strength, and sealing performance of components. There are many factors that affect the performance of high standard sealed electrode paste, including the purity and particle size of the raw materials, the composition and ratio of the paste, processing technology, environmental conditions, etc. The following will provide a detailed introduction to these influencing factors.
1. Purity and particle size of raw materials
High standard sealed electrode paste is mainly composed of ceramic powder, organic carrier, and additives. The purity and particle size of ceramic powders are crucial for the performance of the final product. High purity powder helps to improve the electrical insulation performance and mechanical strength after sintering. The particle size distribution of the powder affects the flowability of the paste and the density after sintering. Usually, finer powders can promote better density during sintering, but excessively fine powders may increase processing difficulty.
2. Composition and ratio of paste
The ratio between different types of ceramic powders, organic carriers, and additives can also affect the performance of electrode paste. The ideal ratio should enable the paste to have good fluidity for uniform application on the substrate; Meanwhile, a dense ceramic layer can be formed during the sintering process. The type and content of organic carriers can affect the viscosity and drying time of the paste, while additives can improve the shrinkage rate and electrical insulation performance during the sintering process.
3. Processing technology
The processing technology of high standard sealed electrode paste includes multiple stages such as mixing, grinding, and filtering. These process steps are directly related to the uniformity, fineness, and presence of bubbles in the paste. To ensure the performance of the electrode paste, precise control methods need to be adopted to ensure the quality of each step.
4. Sintering conditions
The sintering process is a crucial step in determining the final performance of high standard sealed electrode paste. Factors such as sintering temperature, insulation time, heating rate, and atmosphere can all affect the density, hardness, and electrical insulation performance of the ceramic layer. Therefore, precise control of sintering parameters is crucial for obtaining high-quality electrode paste layers.
5. Environmental conditions
During the storage and use of high standard sealed electrode paste, the humidity, temperature, and cleanliness of the environment can also affect its performance. For example, high temperature and humidity environments may cause changes in the organic components of the paste, thereby affecting its stability; Impurities in the air may contaminate the paste, reducing its electrical insulation performance.
In summary, the performance of high standard sealed electrode paste is influenced by various factors. From the selection of raw materials to the optimization of processing technology, every step must be strictly controlled to ensure the quality and performance of the final product. For different application needs, R&D personnel need to comprehensively consider the above factors, continuously adjust the formula and process, in order to prepare high standard sealed electrode paste that meets specific requirements.
