Patent ID: 8284516
Filing Date: 2012-10-09
Classification: G11B,Y10T

Abstract:
1. A perpendicular magnetic recording (PMR) writer, comprising: (a) a main pole comprised of a trailing side and a leading side with respect to a down-track direction, the leading side has a leading edge at an air bearing surface (ABS) and the trailing side has a trailing edge at the ABS and is further comprised of a tapered trailing side section that extends from the ABS to a section of trailing side that is aligned perpendicular to the ABS; (b) a gap layer adjacent to and surrounding the main pole at the ABS wherein said gap layer comprises a write gap formed along the trailing edge and trailing side including the tapered trailing side section; (c) a magnetic assist layer comprising an anisotropic magnetic layer formed between the write gap and the tapered trailing side section; and (d) a shield structure comprising a trailing shield that adjoins a side of the write gap that faces away from the main pole.