Seagate Technology Incorporated

Seagate Technologies, Inc.

Saegate Technology LLC

Declan Macken

Michael Thomas Johnson

Timothy William Stoebe

Jason Bryce Gadbois

Daniel W Olson

James Gary Wessel

Eric Walter Singleton

Huazhou Lou

Narayanan Ramakrishnan

Michael C Kautzky

Erik Jon Hutchinson

James Dillon Kiely

Ladislav Rudolf Pust

Manuel Charles Anaya-Dufresne

Jon Karsten Klarqvist

Jeremy Adam Thurn

Todd Michael Lammers

Dongming Liu

Xuan Zheng

Peng Peng

Venkateswara R Inturi

Karim Tatah

John Wolf

Harry Sam Edelman

Andrei Dorobantu

Tyler Lenn Perry

Paul Julio Sonda

Vee Sochivy Kong

Tong Zhao

Mourad Benakli

Mark Anthony Gubbins

Roger Lee Hipwell, Jr

Kirill A Rivkin

John Robert Pendray

Marcus Benedict Mooney

Daniel Paul Burbank

Gary Joseph Kunkel

Mark Ostrowski

Brian William Karr

Neil Zuckerman

Robert William Lamberton

Michael James Hardy

Dale E Egbert

Francis A McGinnity

Mallika Kamarajugadda

David James Larson

Alan Biggar Johnston

Gavin Lee Brinkley

Song Chen

Karsten Klarqvist

Zheying Guo

Kent Edward Bodurtha

Peter Jeremy Czoschke

Dimitar Velikov Dimitrov

Wei Tian

Mark Thomas Kief

Insik Jin

Victor Sapozhnikov

Huaqing Yin

Lance Eugene Stover

Olle Gunnar Heinonen

Gregory S Mowry

Alexander Mikhailovich Shukh

Sarbeswar Sahoo

Joel William Hoehn

Ibro Tabakovic

Thomas Roy Boonstra

Edwin F Rejda

Jie Zou

Charles H Tolman

Ned Tabat

Javier Ignacio Guzman

Richard P Larson

David Chris Seets

Johannes Van Ek

Steven B Slade

Michael Kevin Minor

Peter Kevin McGeehin

Christopher Loren Platt

Martin Louis Plumer

Scott Wilson Stokes

Xuefei Tang

Taras Grigoryevich Pokhil

Zhen Wei

William J O'Kane

Michael J Conover

Yifan Zhang

Patrick Carl Fletcher

Mei-Ling Wu

Karl Scheppers

I-Fei Tsu

Daniel J Dummer

Darreyl S Sedbrook

Huy Xuan Pham

Jin Fang

Patrick John Moran

Christopher John Cote

Radek Lopusnik

Tracy Charles Baresh

Jenny J Wang

A near-field transducer or heat sink is formed via a first process. The near-field transducer or heat sink is transfer-printed to a read/write head via a second process.

Transfer-printed near-field transducer and heat sink

The present disclosure includes systems and methods for using a comparator-based, relaxation oscillator circuit to detect capacitance of a capacitor formed between a metallic feature in a read/write head and a metallic feature in a storage medium.

Digital storage system that includes sensor and circuit to determine contact and/or distance between read/write head and data storage medium

An apparatus comprises a slider having an air bearing surface (ABS), a leading edge, and a trailing edge opposing the leading edge. A writer having a write pole is situated at or near the ABS. A near-field transducer (NFT) is situated at or near the ABS and between the write pole and the leading edge of the slider. An optical waveguide is configured to couple light from a laser source to the NFT. A contact sensor is situated between the write pole and the trailing edge. The contact sensor comprises a first ABS section situated at or near the ABS, a second ABS section situated at or near the ABS and spaced apart from the first ABS in a cross-track direction by a gap, and a distal section extending away from the ABS and connecting the first ABS section with the second ABS section.

Split contact sensor for a heat-assisted magnetic recording slider

A method for transferring components from a transfer head to a receiving substrate is disclosed. The method includes monitoring signals indicative of a pitch mismatch between locations on the transfer head and locations on the receiving substrate and actuating at least one actuator based at least in part on the monitored signals to reduce the mismatch of the pitch of the locations on the transfer head and the locations on the receiving substrate.

Micro-component batch transfer systems, methods, and devices

An apparatus includes a slider configured for heat-assisted magnetic recording, the slider comprising an air bearing surface (ABS), a writer, a reader, and a plurality of electrical bond-pads. The apparatus also includes a first component situated at the ABS of the slider proximate the reader and operatively coupled to a first pair of the plurality of electrical bond-pads, the first component being a thermocouple configured to sense for a thermal aspect of a magnetic recording medium surface. According to aspects of the invention, the slider is configured to share at least one bond-pad by operatively coupling a second pair of the plurality of electrical bond-pads to a second component, and the slider is configured to selectively utilize the thermocouple and the second component.

Bond-pad sharing for head-level thermocouple

A slider of a heat-assisted magnetic recording head comprises an air bearing surface and an optical waveguide configured to receive light from a laser source. The slider comprises a plurality of electrical bond pads including a first bond pad and a second bond pad. A first resistive sensor is configured to sense for spacing changes and contact between the slider and a magnetic recording medium at or near a first close point of the slider. A second resistive sensor is configured to sense for spacing changes and contact between the slider and the medium at or near a second close point of the slider. A bolometer is situated at a location within the slider that receives at least some of the light communicated along the optical waveguide. The first resistive sensor, the second resistive sensor, and the bolometer are coupled together and between the first and second bond pads.

Bolometer and contact sensor arrangement for a heat-assisted magnetic recording device

A slider configured for heat-assisted magnetic recording includes a laser diode optically coupled to a waveguide of the slider. A power supply is coupled to the laser diode. A preamplifier is coupled to the power supply. The preamplifier is configured to monitor a forward voltage across the laser diode while operating the laser diode at a constant current during a write operation, detect a change in the forward voltage indicative of laser power instability, and generate a signal in response to detecting the forward voltage change.

Sensorless monitoring of laser power instability in a heat-assisted magnetic recording head

An apparatus comprises a slider configured for magnetic recording. The slider comprises an air bearing surface (ABS), a writer, a reader, and a plurality of electrical bond pads. A thermocouple is situated at the ABS proximate the reader and coupled to a pair of the electrical bond pads. The thermocouple is dimensioned to sense for a thermal asperity on a surface of a magnetic recording medium.

Slider incorporating a thermocouple for detecting thermal asperities

An apparatus comprises a slider comprising an air bearing surface (ABS) and configured for heat-assisted magnetic recording. The slider includes a writer and a reader at the ABS, a near-field transducer (NFT) proximate the writer, and an optical waveguide optically coupled to a laser source and the NFT. The slider further includes a sensor configured to contact and sense thermal asperities of a magnetic recording medium. The sensor is formed from one of Ru, Rh, Pd, Os, Ir, and Pt.

Oxidation resistant sensor for heat-assisted magnetic recording

A data storage device can employ one or more transducing heads that have a data reader and data writer each connected to a substrate of the transducing head. The substrate can be electrified with a predetermined surface charge by a charge circuit of the transducing head to maintain, or alter, a head-media spacing.

Transducing head with a surface charged reader

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Prior Lake, MN, United States of America

Declan Macken