JPS6442008A - Manufacture of magnetic head - Google Patents

Abstract

PURPOSE:To eliminate a need for step difference working by bonding a core half body with the other half body in a manner that a nonmagnetic gap spacer is inserted on the bonding surface of the front gap while a spacer made of a magnetic material of high permeability is inserted on the bonding surface of the rear gap. CONSTITUTION:The front gap-side bonding surface 11 of the core half body 1 for write core faces three pieces of the opposite half bodies over the entire core width with the gap spacer 3 in the center, and thus the front gap is formed. This gap acts as a wide write gap, while the part corresponding to the core width of the opposite core half body 2 for read acts as a gap for narrow read. The rear gap side bonding surface 12 is bonded with the opposite side core half bodies 2, 5a, 5b through the high permeability material. Therefore, magnetic flux passes through the rear gap without any magnetic loss, hence an excellent head characteristic can be obtained. As a result, man-hour is reduced in the production of the core half body 1, and the gap can be formed with high accuracy.