Heat-assisted magnetic recording (HAMR) write head with protective multilayer film for near-field transducer

Heat-assisted magnetic recording (HAMR) write head with protective multilayer film for near-field transducer

A heat-assisted magnetic recording (HAMR) head has a protective multilayer confined to a window of the disk-facing surface of the slider that surrounds the near-field transducer (NFT) end and write pole end. The protective multilayer is made up of alternating films of a metal and diamond-like carbon...

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Hauptverfasser: Biswas, Mousumi Mani, Simmons, Randall George, Nguyen, Dung Thi, Hwang, Cherngye
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator Biswas, Mousumi Mani
Simmons, Randall George
Nguyen, Dung Thi
Hwang, Cherngye
description A heat-assisted magnetic recording (HAMR) head has a protective multilayer confined to a window of the disk-facing surface of the slider that surrounds the near-field transducer (NFT) end and write pole end. The protective multilayer is made up of alternating films of a metal and diamond-like carbon (DLC). All of the metal films are formed of the same metal selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, with the preferred metal being zirconium (Zr). A slider protective overcoat may be formed over the entire disk-facing surface in both the window region and the non-window region, with the protective multilayer formed on the slider overcoat in the window region. The overcoat may be absent in the window region, in which case an adhesion film is on the NFT and write pole ends in the window region, with the protective multilayer being formed on the adhesion film.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Heat-assisted magnetic recording (HAMR) write head with protective multilayer film for near-field transducer
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