High Frequency Low Esr Organic Tantalum Electrolytic Capacitor Interlayer Interface Chip And Performance Research

To improve the performance parameters of organic tantalum electrolytic capacitors,this paper focused on the interface structure of organic tantalum electrolytic capacitorscomplex, and studied the stability, uniformity and electrical properties of the interfaceby a variety of measuring instruments. The main contents include:1. The polymerization mechanism of the conductive polymer was discussed, and toget the compact organic thin layer, the polymer filled in the tantalum block effectivelyby adjusting the ratio of EDOT and oxidant, and controlling the temperature.2. The preparation process of organic tantalum electrolytic capacitors wasimproved, and the formation of the oxide dielectric layer and the organic thin film layerwas studied. Furthermore, the structure of the layers interface and the improved productperformance parameters were analyzed to ensure the stability and uniformity of theinterface.3. In the preparation process of organic thin films, the inorganic oxide dielectriclayer could be matched to the organic layer through the surfactant treatment to improvethe interfacial bonding and to enhance the electrical performance parameters.4. The feasibility of doping was studied, and the stability of thin film growth wasenhanced through adding the intermediate barrier layer. In addition, while the theproblem of metal ions into the thin film layer was resolved.5. We selected the effective graphite paste and plastic materials, controlled thepackaging conditions to solve a series of packaging issues and to optimize theparameters of capacitor performance.The performance parameters of the organic tantalum electrolytic capacitors wasoptimized by improving the performance parameters of the capacitor interface layer.