THERMALLY ASSISTED MAGNETIC HEAD, METHOD OF MANUFACTURING THE SAME, HEAD GIMBAL ASSEMBLY, AND HARD DISK DRIVE

摘要

PROBLEM TO BE SOLVED: To prevent a fault of a hard disk drive due to protrusion of a medium-opposing surface accompanying magnetic recording operation and melting of a plasmon antenna.

SOLUTION: A thermally assisted magnetic head has: a main magnetic pole layer; a near-field light generating layer having a generating end part generating near-field light arranged within a medium-opposing surface; and an optical waveguide guiding light to the near-field light generating layer. The near-field light generating layer has a near-field light generating part in a triangle shape with the generating end part being one vertex, and is formed in a triangle pole shape. The optical waveguide is formed to be opposed to a ridge part of the near-field light generating layer via an interposed layer. The main magnetic pole layer is formed to be opposed to the generating end part via the interposed layer. The thermally assisted magnetic head further has a heat radiating layer in contact with an opposite side of the near-field light generating layer from the optical waveguide.

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