MAMR head with recessed STO
First Claim
Patent Images
1. A microwave assisted magnetic recording head, comprising:
- a main pole;
a trailing shield; and
a spin torque oscillator positioned between the main pole and the trailing shield, wherein the spin torque oscillator has a surface for facing a magnetic disk and the surface is recessed from an air bearing surface, and wherein a distance between the surface of the spin torque oscillator and the air bearing surface ranges from 0.2 nm to 2 nm.
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Abstract
Embodiments of the present invention generally relate to a microwave assisted magnetic recording (MAMR) head. The MAMR head includes a main pole, a trailing shield, and a spin torque oscillator (STO) disposed between the main pole and the trailing shield. The STO is recessed from an air bearing surface.
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Citations
20 Claims
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1. A microwave assisted magnetic recording head, comprising:
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a main pole; a trailing shield; and a spin torque oscillator positioned between the main pole and the trailing shield, wherein the spin torque oscillator has a surface for facing a magnetic disk and the surface is recessed from an air bearing surface, and wherein a distance between the surface of the spin torque oscillator and the air bearing surface ranges from 0.2 nm to 2 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A microwave assisted magnetic recording head, comprising:
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a main pole having an end including an air bearing surface; a trailing shield having an end including the air bearing surface; and a spin torque oscillator positioned between the main pole and the trailing shield, wherein the spin torque oscillator has a surface for facing a magnetic disk and the surface is recessed from the air bearing surface, and wherein a distance between the surface of the spin torque oscillator and the air bearing surface ranges from 0.2 nm to 2 nm. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A microwave assisted magnetic recording head, comprising:
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a main pole having an end including an air bearing surface; a trailing shield; a spin torque oscillator positioned between the main pole and the trailing shield, wherein the spin torque oscillator has a surface for facing a magnetic disk and the surface is recessed from the air bearing surface, and wherein a distance between the surface of the spin torque oscillator and the air bearing surface ranges from 0.2 nm to 2 nm; and an insulating material disposed adjacent the spin torque oscillator in a cross-track direction. - View Dependent Claims (19, 20)
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Specification