The invention firstly aims to provide a cascading
inductor based on
metal magnetic
slurry. The cascading
inductor comprises a first base body, an interlayer and a second base body, wherein the first base body, the interlayer and the second base body are arranged from bottom to top. The interlayer comprises at least two single-
layers arranged from bottom to top. Each single-layer comprises a
dielectric layer, a packing layer and a coil
electrode, wherein the
dielectric layer is provided with a through hole in the vertical direction; the packing layer is arranged at the through hole, and the upper surface of the packing layer is not lower than the upper surface of the
dielectric layer; the coil
electrode is arranged on the upper surface of the
dielectric layer and located around the packing layer; the packing layer comprises inorganic
powder bodies composed of
metal magnetic powder, lead-free glass
powder, organic carriers and auxiliaries. The cascading
inductor based on the
metal magnetic
slurry is simple in overall structure; since the packing
layers are made of
metal alloy materials with high saturation flux density, the saturation
magnetization intensity of the whole cascading inductor is improved, and then the rated current is increased. The invention secondly aims to provide a preparation method of the cascading inductor based on the metal magnetic
slurry. By means of the preparation method, the process steps are simple, the cost is low, and the cascading inductor is quite suitable for large-scale
batch production.