Patent ID: 6898055
Filing Date: 2005-05-24
Classification: G11B

Abstract:
1. A thin-film magnetic head comprising: a first lower core layer; a second lower core layer deposited on the first lower core layer for a predetermined length from a front edge surface of the thin-film magnetic head in a height direction; an insulating layer deposited on a region of the second lower core layer, the region being at a rear in the height direction; a magnetic pole laminate deposited one of on the second lower core layer and on the second lower core layer and the insulating layer for a predetermined length from the front edge surface at the rear in the height direction, the magnetic pole laminate being one of formed of a lower magnetic pole layer, a gap layer, and an upper magnetic pole layer deposited in this order from bottom to top and formed of the gap layer and the upper magnetic pole layer in this order from bottom to top; and an upper core layer deposited on the upper magnetic pole layer; a rear edge surface of the magnetic pole laminate is positioned closer to the front edge surface than a rear edge surface of the second lower core layer is.