Seagate Technology Incorporated

Seagate Technologies, Inc.

Xiaoding Ma

Jing Gui

Michael Joseph Stirniman

Huan H Tang

Zhaohui Fan

Kevin John Grannen

Mark Anthony Shows

Jeffrey Arthur McCann

Bin Lu

Paul Max Jones

Raj Thangaraj

Kaizhong Gao

Martin Giles Blaber

Florin Zavaliche

Samuel Lewis Tanaka

Bogdan Florin Valcu

Fujian Huang

XiaoPing Yan

Jan-Ulrich Thiele

Timothy John Klemmer

Yang Yang

Ruoxi Yang

Thomas Larson Greenberg

Christopher Loren Platt

Hongbo Wang

Emil John C Esmenda

Jerry Kueirweei Chour

Emir R Kazazic

Kyoumarss Damavandi

Rajiv Yadav Ranjan

Ganping Ju

Yuhang Cheng

Samuel Dacke Harkness, Iv

Yingguo Peng

Connie C Liu

JiPing Yang

Chung-hee Chang

Yinfeng Ding

Jeffrey Shane Reiter

Kueir-Weei Chour

Bing Zhang

Xinwei Li

Romulo Ata

Chun Wai Joseph Tong

Antonio Javier Zambano

Emil John Catoc Esmenda

ChunWai Joseph Tong

A device includes a housing unit and a number of magnets. The housing unit includes a number of holes therein. The magnets are positioned in the holes. The magnets have a same pole orientation. It is appreciated that the magnets are positioned in the holes to form a mechanically balanced and magnetically unbalanced structure.

Mechanically balanced and magnetically unbalanced device

Systems and methods for coating a near field transducer in a dielectric material are described. In one embodiment, the method may include forming a liquid solution comprising at least a first dielectric and a disk surface lubricant, forming a coating of the liquid solution on an outer surface of a storage medium based at least in part on dipping the storage medium in the liquid solution, and accumulating a first set of molecules of the first dielectric on a near field transducer (NFT) of a HAMR head based at least in part on evaporating a first portion of the first dielectric in the coating by performing a first HAMR writing operation that shines a laser on the coating.

Coating a near field transducer with a dielectric material from magnetic recording medium

Provided herein is an apparatus including a layer stack. A first granular metal layer overlies the layer stack, wherein the first granular metal layer includes first metal grains separated by voids. A first granular non-metal layer overlies the first granular metal layer, wherein the first granular non-metal layer includes first non-metal grains separated by a first segregant. A second granular non-metal layer overlies the first granular non-metal layer, wherein the second granular non-metal layer includes second non-metal grains separated by a second segregant. A second granular metal layer overlies the second granular non-metal layer, wherein the second granular metal layer includes second metal grains separated by a third segregant.

Granularity in overlying magnetic and non-magnetic layers

The embodiments disclose an apparatus including at least two carbon source deposition tools for emitting electrons, at least two reflective polarity rear button permanent magnets integrated into the carbon source deposition tools for reflecting emitted electrons, and at least two paired polarity Helmholtz coils integrated into the carbon source deposition tools for forming uniform parallel magnetic field lines for confining the emitted electrons to uniformly deposit carbon onto the surfaces of a two-sided media disk.

Helmholtz coil assisted PECVD carbon source

A vapor deposition source that includes a substantially vertical plate to which first and second filament posts are coupled. The vapor deposition source also includes a filament having a first end and a second end. The filament provides a substantially concentric source of electrons. The first end of the filament is connected to the first filament post and the second end of the filament is connected to the second filament post. The first end of the filament is substantially vertically aligned with the second end of the filament when the filament is connected to the first and second posts.

Coil filament for plasma enhanced chemical vapor deposition source

An apparatus including a heat sink layer and a magnetic recording layer over the heat sink layer. In addition, a thermochromic layer is over the heat sink layer, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

Apparatuses and methods for absorbing optical energy

An apparatus is disclosed. The apparatus includes a storage layer, a first write layer, and a second write layer. The first write layer is disposed over the storage layer. The second write layer is disposed over the first write layer. The anisotropy field and magnetization associated with the second write layer at writing temperature is greater than anisotropy field and magnetization associated with the first write layer at the writing temperature.

Heat assisted magnetic recording media with enhanced tuning exchange coupling

Provided herein is an apparatus including a head over-coat and a depleted region in the head over-coat. A media over-coat is deposited in the depleted region. A near field transducer is adjacent to the head over-coat, wherein the near field transducer combusts the deposited media over-coat.

Selective heat-assisted removal of head over-coat and media over-coat

Provided herein is an apparatus including a substrate and a magnetic recording layer over the substrate. In addition, a thermochromic layer is over the substrate, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

Aspects include recording media with enhanced areal density through reduction of head media spacing, head keeper spacing, or head to soft underlayer spacing. Such aspects comprise replacing currently non-magnetic components of devices, such as interlayers and overcoats with components and compositions comprising magnetic materials. Other aspects relate to magnetic seed layers deposited within a recording medium. Preferably, these aspects, embodied as methods, systems and/or components thereof reduce effective magnetic spacing without sacrificing physical spacing.

Reduced spacing recording apparatus

A compound comprising a backbone with a perfluoropolyether chain. The compound also has one or more cyclophosphazene rings attached to or incorporated into the backbone. The compound further includes at least two functional groups attached to the backbone, attached to the one or more cyclophosphazene rings, or a combination thereof.

Low profile lubricant with cyclophosphazene ring attached

A method of manufacturing magnetic recording media, comprising sequential steps of:

Oxygen plasma post-deposition treatment of magnetic recording media

Dual-layer carbon-based protective overcoats for recording media by filtered cathodic ARC deposition

Growing community of inventors

Fremont, CA, United States of America

Xiaoding Ma