关键词: LTCC滤波器, 端头侧印, 收缩率, 网版套印

Abstract: This paper mainly studies the problem of low electrical connection rate of the LTCC filter. By comparison，The self-made LTCC filter has a thin side at the exposed end of the tape, which results in poor electrical connection with the intermediate layer conduction band at the port after the conductor is printed on the side. Through further research and analysis, it is found that there are two reasons why the side conduction band of the LTCC filter is too thin. The first factor is that the edge of the porcelain is sliced with porcelain knife, and the second factor is that the shrinkage of the conductor paste and the ceramic material during the sintering process is inconsistent, which causes the conductor to be indented inside. Finally, the corresponding improvement measures are proposed in a targeted manner, and the optimized process technology solution is obtained.

Key words: LTCC Filter, side printing, shrinkage factor, screen overlay printing technology