Patent ID: 7835102
Filing Date: 2010-11-16
Classification: G11B

Abstract:
1. A heat-assisted magnetic recording head comprising in an element-integration surface of a substrate: a write head element for writing data to a magnetic recording medium; a plasmon antenna; and a waveguide, an end surface on a side where a near-field light is generated of said plasmon antenna, being flat and in plane with a flat opposed-to-medium surface of the head and having a shape with at least three vertexes or rounded corners, an end surface of said plasmon antenna which is opposite to the flat end surface, being inclined with respect to the flat end surface in such a way as to become closer to the flat end surface toward one of said at least three vertexes or rounded corners, and said waveguide being configured to propagate a light having a propagation direction substantially perpendicular to said flat end surface in plane with the flat opposed-to-medium surface and to obliquely enter the light into said plasmon antenna from said inclined end surface.