Magnetic head and method of making same.

摘要

A ring-type magnetic head (H) is of a structure in which a metallic magnetic film (8) is sandwiched between two substrates (2), and the metallic magnetic film (8) has a saturation magnetic field not less than 50 A/m in all directions parallel to a film plane thereof. Where the metallic magnetic film (8) is a Co-containing magnetically soft film having a crystallization temperature Tx greater than the Curie temperature Tc, the metallic magnetic film (8) is subjected to a first heat treatment at a temperature not less than Tc and a second heat treatment at a temperature Ta of Tc-180 DEG C