公开(公告)号：DE2260317A1

公开(公告)日：1973-06-28

申请号：DE2260317

申请日：1972-12-09

Applicant: IBM

Inventor： JONES JUN ROBERT EDWARD ,  SIMON PAUL

IPC: G11B5/17 ,  G11B5/31 ,  G11B5/42

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.