Soft ferrite material for use in making inductors, and method for manufacturing inductors using the material

摘要

A soft ferrite material for manufacturing a device for shielding electromagnetic frequencies such as wire coiling inductors and chip components including chip inductors and chip beads is disclosed. Particularly, an Ni-Cu-An soft ferrite material and a method for manufacturing a wire coiling type or chip type inductor using the ferrite material are disclosed, in which a low temperature sintering is possible, the variations of the electromagnetic properties are low as against an external stress, and the electromagnetic properties are superior. A B2O3-Bi2O3-ZnO glass is added in an amount of 0.05-15.0 wt % to the ordinary Ni-Cu-Zn soft raw material, and this mixture is sintered at a temperature of 860 DEG -910 DEG C.