Research on Influencing Factors of Conductivity of Screen Printed Circuits

With the development of printed electronics industry, in order to obtain good printed circuit, it is necessary to ensure the high transfer rate of conductive ink in the printing process. The printing process, the viscosity of the conductive ink, and the post-treatment conditions are important factors affecting the ink transfer. Therefore, the conductive properties of the conductive ink printed circuit were studied by changing the printing speed, the printing pressure, the viscosity of the conductive ink, and the post-processing conditions for the screen printing method. Studies have shown that the viscosity of the conductive ink is 6000 mPa s, the printing pressure is the gear position 4, the printing speed is the gear position 1, and the post processing condition is 120 °C, and the drying time is 10 min, the square resistance of the printed circuit is the smallest.