Patent ID: 7710677
Filing Date: 2010-05-04
Classification: G11B

Abstract:
1. A thermally assisted magnetic head having a medium-facing surface facing a medium, said magnetic head comprising: a waveguide an end face of which is exposed in the medium-facing surface; an electroconductive near-field light generator plate disposed on a medium-facing surface of the waveguide so that a principal face thereof faces the medium; and an electroconductive near-field light scatter plate disposed on the medium-facing surface of the thermally assisted magnetic head so that a principal face thereof faces the medium; wherein, when viewed from a direction perpendicular to the medium-facing surface, the near-field light generator plate has a cusp portion at an end; wherein, when viewed from the direction perpendicular to the medium-facing surface, the near-field light scatter plate is arranged along an other end opposite to the cusp portion of the near-field light generator plate; and wherein, when viewed from the direction perpendicular to the medium-facing surface, a width of the near-field light scatter plate in a first direction perpendicular to a direction connecting the cusp portion and the other end of the near-field light generator plate is larger than a width in the first direction of the near-field light generator plate.