PURPOSE: To eliminate an element width loss of a thin film magnetic head, by connecting magnetically a permeable matter having contact with a recording medium to an end of the width direction of a magneto-resistance effect element of a ferromagnetic matter and at the same time by connecting magnetically a permeable thin film having contact with the recording medium to the other end of the magneto-resistance effect element with electrical insulation.
CONSTITUTION: A cut groove 2 is formed on the surface of an insulated magnetic substrate 1 like ferrite, etc., and a nonmagnetic material 3 is filled into the groove 2. Then an Ni-Fe alloy, for instance, is coated on a new surface finished with the same level as the surface of the substrate 1. Electrodes 5 and 6 are provided at both ends in the lengthwise direction of a magneto-resistance effect element 4, and the element 4 is set in parallel to the lengthwise direction of the groove 2. The upper end part of the element 4 is connected magnetically to the upper end part 10 of the groove 2; while the lower end part of the element 4 is insulated electrically and connected magnetically to the upper end part of a permeable thin film 7 having approximately equal thickness. The signal magnetization recorded on a vertical recording medium 8 is led to the lower part of the element 4 and then to the part 10. Then the signal magnetization passes through the substrate 1 to be led to a contact surface 11 with the medium 8 and then returns to the medium 8. In such a way, the width loss of the element 4 can be eliminated.
SASAKI KIYOSHI
TAKAHASHI TAKESHI
SUGITA RIYUUJI
| JPS52113216A | 1977-09-22 | |||
| JPS5263709A | 1977-05-26 |