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Methods and apparatuses for localized annealing of sliders configured for heat assisted magnetic recording

  • US 10,643,641 B1
  • Filed: 03/29/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 03/29/2019
  • Status: Active Grant
First Claim
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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.

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