Coil-type electronic component

摘要

A coil-type electronic component having a coil inside or on the surface of a base material is characterized in that the base material of the coil-type electronic component is constituted by a group of soft magnetic alloy grains inter-bonded via oxide layers, multiple crystal grains are present in each soft magnetic alloy grain, and the oxide layers preferably have a two-layer structure whose outer layer is thicker than the inner layer.

主权项

1. A coil-type electronic component having a coil inside or on the surface of a base material, wherein the base material is constituted by a group of inter-bonded grains consisting of soft magnetic alloy grains and oxide layers covering the soft magnetic alloy grains, some of said grains being inter-bonded via the oxide layers whereas some of said grains being directly inter-bonded without involving any oxide layer, and multiple in-grain crystal grains having different orientation axes are present within each soft magnetic alloy grain, said multiple in-grain crystal grains having different orientation axes being such grains formed in an oxygen ambience where the temperature is raised to 500 to 900° C. at a rate of 30 to 300° C./hour.