Perpendicular magnetic recording head having a trailing side taper angle which is less than a leading side taper angle

摘要

In one embodiment, a perpendicular magnetic recording head includes a main pole configured to write data to a magnetic medium, a leading-side magnetic shield positioned on a leading side of the main pole in a down-track direction adjacent a media-facing surface of the head, and a trailing-side magnetic shield positioned on a trailing side of the main pole in the down-track direction adjacent the media-facing surface of the head, wherein a trailing side taper is provided on the trailing side of the main pole in the down-track direction, wherein a leading shield taper is provided on a main pole side of the leading-side magnetic shield, and wherein an angle of the trailing side taper relative to a line extending along an element height direction is less than or equal to an angle of the leading shield taper relative to the line extending along the element height direction.

主权项

1. A perpendicular magnetic recording head, comprising:
a main pole configured to write data to a magnetic medium, wherein a leading pole taper is provided on a leading side of the main pole; a leading-side magnetic shield positioned on a leading side of the main pole in a down-track direction adjacent a media-facing surface of the perpendicular magnetic recording head; and a trailing-side magnetic shield positioned on a trailing side of the main pole in the down-track direction adjacent the media-facing surface of the perpendicular magnetic recording head, wherein a trailing side taper is provided on the trailing side of the main pole in the down-track direction, wherein a leading shield taper is provided on a main pole side of the leading-side magnetic shield, and wherein an angle of the trailing side taper relative to a line extending along an element height direction is less than or equal to an angle of the leading shield taper relative to the line extending along the element height direction, wherein a step is provided on the leading side of the main pole at an end of the leading pole taper in the element height direction, the step increasing a thickness of the main pole in the down-track direction.