Methods and apparatuses for localized annealing of sliders configured for heat assisted magnetic recording
First Claim
1. A system for optically annealing a slider configured for heat assisted magnetic recording (HAMR), the system comprising:
- a support structure configured to retain a slider, the slider comprising;
a writer for writing data to a HAMR medium;
a reader for reading data stored on the HAMR medium;
a near field transducer (NFT);
first means for transmitting light energy, wherein the first means for transmitting light energy is optically coupled to the NFT;
means for generating a first light energy, wherein the means for generating the first light energy is configured to generate and transmit the generated first light energy to the first means for transmitting light energy such that the NFT causes a portion of the HAMR medium to heat up;
second means for transmitting light energy, wherein the second means for transmitting light energy is optically coupled to the NFT; and
means for optical coupling coupled to the second means for transmitting light energy; and
external means for generating light energy, wherein the external means for generating the light energy is configured to generate and transmit the generated light energy to the means for optical coupling, such that the generated light energy travels through the second means for transmitting light and to the NFT, where the generated light energy is sufficient to anneal the NFT.
4 Assignments
0 Petitions
Accused Products
Abstract
A slider for heat assisted magnetic recording (HAMR) is provided. The slider includes a writer for writing data to a HAMR medium, a reader for reading data stored on the HAMR medium, a near field transducer (NFT), a first waveguide optically coupled to the NFT, a slider laser configured to generate and transmit a first light energy to the first waveguide such that the NFT causes a portion of the HAMR medium to heat up, to assist the writer for writing data to the HAMR medium, and a second waveguide optically coupled to the NFT, for transmitting a light energy from an external laser to the NFT to optically anneal the NFT during a fabrication process of the slider.
16 Citations
20 Claims
-
1. A system for optically annealing a slider configured for heat assisted magnetic recording (HAMR), the system comprising:
-
a support structure configured to retain a slider, the slider comprising; a writer for writing data to a HAMR medium; a reader for reading data stored on the HAMR medium; a near field transducer (NFT); first means for transmitting light energy, wherein the first means for transmitting light energy is optically coupled to the NFT; means for generating a first light energy, wherein the means for generating the first light energy is configured to generate and transmit the generated first light energy to the first means for transmitting light energy such that the NFT causes a portion of the HAMR medium to heat up; second means for transmitting light energy, wherein the second means for transmitting light energy is optically coupled to the NFT; and means for optical coupling coupled to the second means for transmitting light energy; and external means for generating light energy, wherein the external means for generating the light energy is configured to generate and transmit the generated light energy to the means for optical coupling, such that the generated light energy travels through the second means for transmitting light and to the NFT, where the generated light energy is sufficient to anneal the NFT. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for optically annealing a slider, the method comprising:
-
providing a slider, wherein the slider comprises; a writer for writing data to a heat assisted magnetic recording (HAMR) medium; a reader for reading data stored on the HAMR medium; a near field transducer (NFT); a first waveguide optically coupled to the NFT; a slider laser configured to generate and transmit a first light energy to the first waveguide such that the NFT causes a portion of the HAMR medium to heat up, to assist the writer for writing data to the HAMR medium; and a second waveguide optically coupled to the NFT; and generating and transmitting, from an external laser, a light energy to the second waveguide, such that the generated light energy travels to the NFT, and where the generated light energy anneals the NFT. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A slider for heat assisted magnetic recording (HAMR), the slider comprising:
-
a writer for writing data to a HAMR medium; a reader for reading data stored on the HAMR medium; a near field transducer (NFT) configured to cause a portion of the HAMR medium to heat up when a first light energy is received, to assist the writer for writing data to the HAMR medium, wherein the NFT includes an annealed portion that has a grain size that is about 5 to 20 percent greater than a non-annealed NFT of the same composition; a first waveguide optically coupled to the NFT; and a second waveguide optically coupled to the NFT, for transmitting a light energy from an external laser to the NFT to optically anneal the NFT during a fabrication process of the slider. - View Dependent Claims (17, 18, 19, 20)
-
Specification