Patent ID: 7768743
Filing Date: 2010-08-03
Classification: G11B

Abstract:
1. A perpendicular magnetic recording write head for magnetizing regions in data tracks of a magnetic recording layer comprising: a substrate; a magnetic write pole (WP) comprising a layer of magnetic material formed on the substrate, the WP having a cross-track width at an end facing the recording layer and a wider cross-track width at a region recessed from the end, the WP having a throat height from its end to a transition point where its width transitions to its wider width; a nonmagnetic pad layer on the WP layer and having a front edge recessed from the WP end; a trailing shield (TS) comprising a layer of magnetically permeable material on the WP layer and pad layer, the TS having an end generally coplanar with the WP end, the TS end having a cross-track width substantially wider than the WP's cross-track width and a notch facing the WP and having a width generally equal to the WP's cross-track width, the TS having a throat height (TH) from its end to the pad layer front edge; and a nonmagnetic gap layer between the WP layer and the TS in the region between the TS end and the pad layer front edge.