公开(公告)号：US3787964A

公开(公告)日：1974-01-29

申请号：US3787964D

申请日：1971-12-23

Applicant: IBM

Inventor： SIMON P ,  JONES R

IPC: G11B5/17 ,  G11B5/31 ,  G11B5/42

CPC classification number: G11B5/3133 ,  G11B5/17 ,  G11B5/3166 ,  Y10T29/49004 ,  Y10T29/49036 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49064

Abstract: This disclosure relates to a method for manufacturing a magnetic head. The steps of the method comprise forming a transformer having a first magnetic layer, a primary winding, a secondary winding separated from the primary winding, the primary and secondary windings being disposed on the first magnetic layer, and a second magnetic layer disposed over the primary and secondary windings. The first and second magnetic layers encircle portions of the primary and secondary windings thus forming a continuous magnetic path. Tests determinative of its magnetic properties are made on the transformer. Thereafter, the transformer is severed between the primary and the secondary windings and the secondary is discarded. The primary is then lapped to form a thin-film magnetic head.

Abstract translation: 本公开涉及一种用于制造磁头的方法。 该方法的步骤包括形成具有第一磁性层，初级绕组，与初级绕组分离的次级绕组，初级和次级绕组设置在第一磁性层上的变压器，以及设置在初级绕组上的第二磁性层 和次级绕组。 第一和第二磁性层围绕初级和次级绕组的部分，从而形成连续的磁路。 在变压器上进行其磁特性的测定。 此后，变压器在初级绕组和次级绕组之间被切断，次级绕组被丢弃。 然后将主体研磨以形成薄膜磁头。