Seagate Technology Incorporated

Florin Zavaliche

Joachim Walter Ahner

David Marcus Tung

Stephen Keith McLaurin

Henry Luis Lott

Maissarath Nassirou

Samuel Kah Hean Wong

Tong Zhao

Timothy John Klemmer

Paul Max Jones

Fujian Huang

Martin Giles Blaber

Martin Gerard Forrester

Ganping Ju

Jan-Ulrich Thiele

Xiaoding Ma

Yukiko A Kubota

Huan H Tang

Pin-Wei Huang

Zhaohui Fan

XiaoPing Yan

Michael Joseph Stirniman

Mark Anthony Gubbins

Yingguo Peng

Yang Yang

Michael James Hardy

Ruoxi Yang

Andres David Barbosa Neira

Choon How Gan

Roberto Fernandez Garcia

Hongbo Wang

Emil John C Esmenda

Stephen John Wrazien

Kyoumarss Damavandi

Shan Hu

Dierk Guenter Bolten

Emir R Kazazic

Andreas Karl Roelofs

Xiaobin Zhu

Philip George Pitcher

Yinfeng Ding

Kai Chieh Chang

Bing Zhang

Kai-Chieh Chang

QiHong Wu

Emil John Catoc Esmenda

Daniel Staaks

Wei-Heng Hsu

Yassine Quessab

Yue Hu

A magnetic stack includes a magnetic recording structure and at least two heat-sink layers where heat-sink layer located furthest from the magnetic recording structure has thermal conductivity equal to or greater than intervening heat-sink layers. One or more interlayers can be included in the magnetic stack. Data storage devices and systems including one or more of the magnetic stacks, and related methods.

Heat-sink structure in magnetic stack, and related articles, systems, and methods

A magnetic stack includes a substrate and a soft magnetic underlayer deposited on a top surface of the substrate. A heat sink layer is disposed on top of the soft magnetic underlayer, and an interlayer is deposited on top of the heat sink layer. A non-magnetic seed layer is deposited on top of the interlayer. A magnetic recording structure which includes more than one magnetic recording layer is deposited on the top surface of the non-magnetic seed layer.

Magnetic stack including non-magnetic seed layer for hard disk drive media

An apparatus comprises a slider configured for heat-assisted magnetic recording. A near-field transducer comprising a peg is situated at or near an air bearing surface of the slider, and an optical waveguide of the slider is configured to couple light from a light source to the near-field transducer. The peg comprises a hyperbolic metamaterial, and the near-field transducer may further include an enlarged portion from which the peg extends, where the enlarged portion may also comprise a hyperbolic metamaterial.

Hyperbolic metamaterial-based near-field transducer for heat assisted magnetic recording head

A stack includes a heatsink layer, a magnetic recording layer disposed over the heatsink layer, and a Si-based overcoat layer disposed over the magnetic recording layer. The Si-based overcoat layer is substantially devoid of carbon.

Si-based overcoat for heat assisted magnetic recording media

An apparatus for detecting surface features is disclosed. The apparatus may include a plurality of strands configured to contain light and further configured to transmit light from a light source to a surface of an article. The apparatus may also include a detector configured to receive light reflected from the surface of the article via the plurality of strands, wherein the detector is further configured to detect features associated with the article.

Feature detection with light transmitting medium

Provided herein is an apparatus, comprising a first photon emitter configured to emit photons into an article from a circumferential edge of the article, and a photon detector array configured to detect photons scattered from features of the article.

Imaging a transparent article

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 thermal exchange control layer disposed over the storage layer, and a write layer disposed over the thermal exchange control layer. A Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the storage layer. The Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the write layer.

Heat assisted magnetic recording (HAMR) media with thermal exchange control layer of lower curie temperature

Provided herein is an apparatus, including a photon emitter configured for sequentially emitting a first set of photons and a second set of photons onto a surface of an article. In addition, a photon detector array is configured to focus the first set of photons scattered from surface features of the article in a first focal plane. The photon detector array is further configured to focus the second set of photons scattered from surface features of the article in a second focal plane, wherein the first set of photons scattered is different from the second set of photons scattered. The photon detector array is further configured to provide information for distinguishing foreign surface features of the article from native surface features of the article.

Distinguishing foreign surface features from native surface features

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 photon emitter configured to emit photons onto a surface of an article, a photon detector array configured to receive photons from surface features of the article; and a processing means configured for processing photon-detector-array signals corresponding to photons scattered from the surface features and photons fluoresced from the surface features, wherein the processing means is further configured for classifying the surface features of the article.

Classification of surface features using fluoresence

Provided herein is an apparatus, including a reflective surface configured to reflect photons onto a surface of an article, a stage configured to support the article, and an assembly. The assembly is configured to radiate photons through the article to the reflective surface. The assembly is further configured to image the article with irradiance of the photons.

Apparatus for uniformly irradiating and imaging an article

Provided herein is an apparatus, including an optical characterization device; a photon detector array configured to sequentially receive a first set of photons scattered from surface features of an article and a second set of photons scattered from surface features of the article and subsequently processed by the optical characterization device; and a chemical characterization means for chemically characterizing the surface features of the article, wherein the chemical characterization means is configured for processing the first set of photons received by the photon detector array and the second set of photons received by the photon detector array.

Chemical characterization of surface features

Growing community of inventors

San Ramon, CA, United States of America

Florin Zavaliche