Seagate Technology Incorporated

Western Digital Technologies, Inc.

Yiao-Tee Hsia

Lei Li

Paul Max Jones

Xiaoping Yan

James Dillon Kiely

JiPing Yang

Earl Chrzaszcz Johns

Wei Peng

James Dillion Kiely

Edward Charles Gage

Michael Joseph Stirniman

Timothy John Klemmer

Christopher Loren Platt

Michael Allen Seigler

Michael L Mallary

William Albert Challener

Xuhui Jin

Mary Cynthia Hipwell

David Allen Sluzewski

Mark Ian Lutwyche

William Don Huber

Corina Nistorica

Alexei Merzlikine

Emil Catoc Esmenda

The present invention relates to a device for magnetic recording that includes a storage medium having a media surface. The media surface has a plurality of lands and recesses between the lands. A polymer layer fills the recesses so that the media surface is substantially planar.

Planarization methodology for topographically challenged media surface

A disk drive read circuit is disclosed comprising a read element for generating a read signal, and a sense amplifier comprising an input terminal coupled through a first capacitor to the read element and an output terminal coupled through a second capacitor to a transmission line, wherein the sense amplifier is for amplifying the read signal.

Disk drive read circuit comprising an AC coupled sense amplifier for amplifying a read signal

A magnetic data storage medium may include a substrate, a magnetic recording layer, a protective carbon overcoat, and a monolayer covalently bound to carbon atoms adjacent a surface of the protective carbon overcoat. According to this aspect of the disclosure, the monolayer comprises at least one of hydrogen, fluorine, nitrogen, oxygen, and a fluoro-organic molecule. In some embodiments, a surface of a read and recording head may also include a monolayer covalently bound to carbon atoms of a protective carbon overcoat.

Covalently bound monolayer for a protective carbon overcoat

A method includes activating a stress-effecting layer of a thin film structure, having the stress effecting layer adjacent to a magnetic layer, to induce a magneto-elastic anisotropy in the magnetic layer.

Magneto-elastic anisotropy assisted thin film structure

A lubricant layer for a magnetic recording medium may include a perfluoropolyether having monomer units and end groups selected to provide high thermal stability and good reliability.

Media lubricant for high temperature application

A data storage device comprising a storage medium having a recordable surface, a transducing head having a bearing surface positioned adjacent to the recordable surface of the storage medium, and at least one compound disposed between the recordable surface and the bearing surface, the at least one compound comprising at least one functional group that imparts corrosion resistance and at least one functional group that imparts lubricating properties.

Protective coatings for data storage devices

A thin film structure, such as a magnetic recording media, having a magnetic layer and a stress-effecting layer is disclosed. The stress-effecting layer induces a magneto-elastic anisotropy in the magnetic layer. The stress-effecting layer can be activated by the application of an external stress and/or strain. The induced magneto-elastic anisotropy can transiently achieve and/or enhance a tilt angle of the medium. The medium can be a perpendicular magnetic recording medium, a longitudinal magnetic recording medium and/or a tilted magnetic recording medium. The magnetic recording media is suitable for use with a data storage system, such as a HAMR data storage system.

An apparatus includes a substrate, a recording layer on the substrate, and a nanocomposite layer on the recording layer, the nanocomposite layer including a wear-resistant material and a solid lubricant material, wherein the atomic percentage of the solid lubricant material in the nanocomposite layer is in a range from about 5% to about 99%. A method of making the apparatus is also provided.

Apparatus having a nanocomposite protection layer

An apparatus including a transducer having a plurality of polymer strands attached thereto and/or a storage media having a plurality of polymer strands attached thereto. When the apparatus includes both the transducer and the storage media, the plurality of polymer strands attached to the transducer may be positioned to interact with the plurality of polymer strands attached to the storage media. The transducer may be a probe for a data storage device. The storage media may be a ferroelectric storage media.

Wear resistant data storage device

An apparatus includes a slider mounted on an arm, a first waveguide including a first core guiding layer, a second waveguide mounted on the slider and including a second core guiding layer having a thickness smaller than the thickness of the first core guiding layer, and a coupler for coupling light from the first core guiding layer to the second core guiding layer.

Waveguide for heat assisted magnetic recording

An apparatus comprises a data storage medium; a remote unit; and an authorization unit for encrypting information to be stored on the storage medium and for controlling access to data stored on the data storage medium in response to the access control signals received from the remote unit. A method of controlling access to data stored on the data storage medium is also provided.

Data storage device with built-in data protection for ultra sensitive applications

An apparatus includes a storage media having a surface coated with a lubricant, and a plurality of probes having tips contacting the lubricant, wherein the probes are coated with one of a fluorocarbon, perfluoropolyether, polytetrafluoroethylene, fluorinated ethylene propylene, polyethylene, or a hydrocarbon polymer.

Low surface energy coatings in probe recording

An apparatus comprises a storage medium having a surface coated with a layer of a first solid lubricant, and a head separated from the storage medium by an air film, the head having an air bearing surface, wherein at least a portion of the air bearing surface is coated with a layer of a second solid lubricant.

Head-disc interface (HDI) with solid lubricants

A ferroelectric transducer for use with a ferroelectric storage medium includes a read electrode. The read electrode emits a current when a polarity orientation of the read electrode is opposite a polarity orientation of a ferroelectric domain on the storage medium.

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Wexford, PA, United States of America

Yiao-Tee Hsia