Abstract: Disclosed are a microwave ferrite material suitable for a 5G radio frequency device and a preparation method therefor. The preparation raw materials of the microwave ferrite material comprise a first microwave ferrite material and a second microwave ferrite material. In the microwave ferrite material provided by the present application, a double-component formula is introduced, proper ion substitution is employed, and ball milling and sintering processes are controlled, and therefore, the prepared microwave ferrite material has the characteristics of high saturation magnetic moment, high Curie temperature, narrow linewidth and low loss, and can be applied to industrial large-scale production of 5G radio frequency devices.

Abstract: The present disclosure provides a magnetic composite material composition, a magnetic core for an inductor and a manufacturing method therefor. It includes a magnetically soft alloy, a thermosetting resin, a curing agent, and an organic solvent. The organic solvent contains at least two types of volatile solvents, and a difference between boiling points of the volatile solvents ranges from 100 to 170° C. The magnetically soft alloy and the thermosetting resin may be cured and formed under the action of the curing agent. The magnetic composite material of the above composition has good high-temperature resistance. Different types of the volatile solvents may be successively volatilized rather than rapidly volatilized at one time as the curing reaction undergoes. Therefore, a large amount of pores can be prevented from being produced on the surface and internal of the magnetic composite material composition, thereby enhancing the compactness and relative permeability.

Abstract: Disclosed are a fully-integrated voltage regulation module inductor magnetic slurry and a preparation method thereof; in parts by mass, the components of the magnetic slurry comprise: 100 parts of a soft magnetic alloy powder, 9-13 parts of a binder and 2.85-4.61 parts of a curing agent; wherein the binder comprises bisphenol F epoxy resin and an aromatic reactive diluent; and the preparation method utilizes mechanical stirring and vacuum defoaming treatment to obtain a magnetic slurry having a suitable viscosity and good high-temperature resistance performance. The preparation method of the present application is simple in operation, has low preparation costs and is suitable for industrial manufacture.

Abstract: Provided in the present application are a power inductor and a preparation method therefor. The preparation method comprises the process steps of slurry preparation, slurry casting, coil winding, coil arrangement, slurry pouring, warm-water pressing, curing treatment, UV adhesive film lamination, cutting, etc. A small-size power inductor can be simply and efficiently prepared, the preparation method is particularly suitable for ultrathin inductors, the phenomena of a short circuit, an open circuit, etc., appearing due to the damage to copper wires that is caused by using dry-pressing integral forming technology are avoided, and the problem of a single box body being easily damaged during casting is solved, thereby facilitating industrial applications.

Abstract: A manufacturing method of a thin-film power inductor includes: Alloy powder is mixed with plasticizer, adhesive, curing agent, dispersing agent and organic solvent to form slurry; the slurry is applied on a PET film, and drying to form a magnetic band; and the magnetic band is cut to form a plurality of magnetic sheets. A hole is opened on a magnetic sheet to form a hole-shaped magnetic sheet. Electrodes are processed on an insulating substrate to form a coil layer. Magnetic sheets, hole-shaped magnetic sheets, and the coil layer are stacked to form a block. The block is pressed, and the block is cut to form an individual product. The individual product is baked to form a main body. Silver paste is applied on the main body to form outer electrodes. A nickel layer and a tin layer are electroplated on outer electrodes to form a thin-film power inductor.

Abstract: The present application provides a soft magnetic alloy sheet, a preparation method therefor and a use thereof. The preparation method comprises the following steps: (1) mixing thermosetting resin, thermoplastic resin, a solvent, a curing agent, and soft magnetic alloy powder having insulating coating to obtain casting slurry; and (2) carrying out degassing and casting-drying treatment on the casting slurry in step (1) in sequence to obtain the soft magnetic alloy sheet.

Abstract: Provided is a thin-film power inductor. The thin-film power inductor includes a magnet, a first port electrode, and a second port electrode. The magnet includes at least one first sub-structure. A first sub-structure includes a first upper functional layer, a first upper coil, a first upper adhesive layer, a first insulating layer, a first lower adhesive layer, a first lower coil, and a first lower functional layer that are stacked in sequence. A first end of the first upper coil and a first end of the first lower coil are exposed to a same surface of the magnet and are both electrically connected to the first port electrode. A second end of the first upper coil and a second end of the first lower coil are exposed to a same surface of the magnet and are both electrically connected to the second port electrode.

Abstract: A manufacturing method of a thin-film power inductor includes: Alloy powder is mixed with plasticizer, adhesive, curing agent, dispersing agent and organic solvent to form slurry; the slurry is applied on a PET film, and drying to form a magnetic band; and the magnetic band is cut to form a plurality of magnetic sheets. A hole is opened on a magnetic sheet to form a hole-shaped magnetic sheet. Electrodes are processed on an insulating substrate to form a coil layer. Magnetic sheets, hole-shaped magnetic sheets, and the coil layer are stacked to form a block. The block is pressed, and the block is cut to form an individual product. The individual product is baked to form a main body. Silver paste is applied on the main body to form outer electrodes. A nickel layer and a tin layer are electroplated on outer electrodes to form a thin-film power inductor.