Microwave-assisted magnetic recording (MAMR) head with an inclined and recessed main pole structure

摘要

In one embodiment, a magnetic head includes a main pole configured to emit a recording magnetic field for affecting a magnetic medium, the main pole configured to serve as a first electrode and having a front portion at an air bearing surface (ABS) of the magnetic head and a rear portion extending from the front portion in an element height direction perpendicular to the ABS, wherein an upper surface of the front portion of the main pole is angled with respect to a plane of deposition at a first angle of inclination of greater than 0°, and wherein at least a portion of an upper surface of the rear portion of the main pole is angled at a first angle of declination greater than 0° with respect to the plane of deposition, an upper shield positioned above the main pole, the upper shield configured to serve as a second electrode, and a microwave oscillator positioned between the main pole and the upper shield at the ABS.

主权项

1. A magnetic head, comprising:
a main pole configured to emit a recording magnetic field for affecting a magnetic medium, the main pole configured to serve as a first electrode and having a front portion at an air bearing surface (ABS) of the magnetic head and a rear portion extending from the front portion in an element height direction perpendicular to the ABS, wherein an upper surface of the front portion of the main pole is angled with respect to a plane of deposition at a first angle of inclination of greater than 0°, and wherein at least a portion of an upper surface of the rear portion of the main pole is angled at a first angle of declination greater than 0° with respect to the plane of deposition; an upper shield positioned above the main pole, the upper shield configured to serve as a second electrode; and a microwave oscillator positioned between the main pole and the upper shield at the ABS.