KR101823489B1 - 리더 구조 - Google Patents

리더 구조 Download PDF

Info

Publication number
KR101823489B1
KR101823489B1 KR1020140110737A KR20140110737A KR101823489B1 KR 101823489 B1 KR101823489 B1 KR 101823489B1 KR 1020140110737 A KR1020140110737 A KR 1020140110737A KR 20140110737 A KR20140110737 A KR 20140110737A KR 101823489 B1 KR101823489 B1 KR 101823489B1
Authority
KR
South Korea
Prior art keywords
cross track
anisotropy
field
magnetic
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
KR1020140110737A
Other languages
English (en)
Korean (ko)
Other versions
KR20150022729A (ko
Inventor
빅터 보리스 사포즈니코브
모함메드 사리아 울라 팻와리
Original Assignee
시게이트 테크놀로지 엘엘씨
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 시게이트 테크놀로지 엘엘씨 filed Critical 시게이트 테크놀로지 엘엘씨
Publication of KR20150022729A publication Critical patent/KR20150022729A/ko
Application granted granted Critical
Publication of KR101823489B1 publication Critical patent/KR101823489B1/ko
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
    • G11B5/3932—Magnetic biasing films
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3909—Arrangements using a magnetic tunnel junction
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1107—Magnetoresistive
    • Y10T428/1121—Multilayer

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
KR1020140110737A 2013-08-23 2014-08-25 리더 구조 Expired - Fee Related KR101823489B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/975,053 2013-08-23
US13/975,053 US9508366B2 (en) 2013-08-23 2013-08-23 Reader structure

Publications (2)

Publication Number Publication Date
KR20150022729A KR20150022729A (ko) 2015-03-04
KR101823489B1 true KR101823489B1 (ko) 2018-03-14

Family

ID=52480168

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140110737A Expired - Fee Related KR101823489B1 (ko) 2013-08-23 2014-08-25 리더 구조

Country Status (4)

Country Link
US (1) US9508366B2 (enExample)
JP (1) JP2015041403A (enExample)
KR (1) KR101823489B1 (enExample)
CN (1) CN104424959B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9679589B2 (en) * 2015-09-11 2017-06-13 Seagate Technology Llc Magnetoresistive sensor with enhanced uniaxial anisotropy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012230752A (ja) * 2011-04-25 2012-11-22 Seagate Technology Llc データ検知素子、磁気素子および方法
JP2013062017A (ja) * 2011-09-13 2013-04-04 Seagate Technology Llc 傾斜した一軸異方性が調整された装置およびセンサ、ならびに傾斜した一軸異方性を調整する方法
JP2014010881A (ja) 2012-06-29 2014-01-20 Seagate Technology Llc 装置、磁気素子、およびセンサ

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956736A (en) * 1988-12-16 1990-09-11 Eastman Kodak Company Thin film magnetic element having a rhombic shape
US5379172A (en) * 1990-09-19 1995-01-03 Seagate Technology, Inc. Laminated leg for thin film magnetic transducer
JP2683503B2 (ja) * 1993-09-02 1997-12-03 インターナショナル・ビジネス・マシーンズ・コーポレイション 磁性膜構造
JP3075253B2 (ja) * 1998-03-31 2000-08-14 日本電気株式会社 スピンバルブ型感磁素子及びこれを用いた磁気ヘッド並びに磁気ディスク装置
JP3623418B2 (ja) * 1999-12-06 2005-02-23 アルプス電気株式会社 スピンバルブ型磁気抵抗効果素子及びそれを備えた薄膜磁気へッドとそれらの製造方法
US6809900B2 (en) * 2001-01-25 2004-10-26 Seagate Technology Llc Write head with magnetization controlled by spin-polarized electron current
US6765770B2 (en) * 2001-10-11 2004-07-20 Storage Technology Corporation Apparatus and method of making a stabilized MR/GMR spin valve read element using longitudinal ferromagnetic exchange interactions
US6965494B2 (en) * 2002-05-13 2005-11-15 Robert Owen Campbell Magnetic recording head having a first pole for generating an easy axis field and an auxiliary pole for generating a first auxiliary hard axis field that opposes an initial hard axis field
US7330339B2 (en) * 2003-07-25 2008-02-12 Hitachi Global Storage Technologies Netherlands B.V. Structure providing enhanced self-pinning for CPP GMR and tunnel valve heads
JP5095076B2 (ja) * 2004-11-09 2012-12-12 株式会社東芝 磁気抵抗効果素子
US7382586B2 (en) * 2005-03-31 2008-06-03 Hitachi Global Storage Technologies Netherlands B.V. Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a self biased free layer
US7460343B2 (en) * 2005-03-31 2008-12-02 Hitachi Global Storage Technologies Netherlands B.V. Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a hard magnetic in-stack bias layer
US7443639B2 (en) * 2005-04-04 2008-10-28 International Business Machines Corporation Magnetic tunnel junctions including crystalline and amorphous tunnel barrier materials
JP2007323725A (ja) * 2006-05-31 2007-12-13 Toshiba Corp 垂直通電型磁気ヘッドおよびそれを用いた磁気ディスク装置
US8023230B2 (en) * 2008-10-27 2011-09-20 Tdk Corporation Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers
US8405931B2 (en) * 2009-06-25 2013-03-26 Seagate Technology Llc Magnetic main write pole
US8742518B2 (en) * 2011-03-31 2014-06-03 Seagate Technology Llc Magnetic tunnel junction with free layer having exchange coupled magnetic elements
US8675315B2 (en) * 2011-07-29 2014-03-18 Seagate Technology Llc Magnetic sensor with anisotropic liner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012230752A (ja) * 2011-04-25 2012-11-22 Seagate Technology Llc データ検知素子、磁気素子および方法
JP2013062017A (ja) * 2011-09-13 2013-04-04 Seagate Technology Llc 傾斜した一軸異方性が調整された装置およびセンサ、ならびに傾斜した一軸異方性を調整する方法
JP2014010881A (ja) 2012-06-29 2014-01-20 Seagate Technology Llc 装置、磁気素子、およびセンサ

Also Published As

Publication number Publication date
KR20150022729A (ko) 2015-03-04
US20150055251A1 (en) 2015-02-26
CN104424959A (zh) 2015-03-18
CN104424959B (zh) 2018-09-21
JP2015041403A (ja) 2015-03-02
US9508366B2 (en) 2016-11-29

Similar Documents

Publication Publication Date Title
US9190082B2 (en) Dual reader structure
US6277505B1 (en) Read sensor with improved thermal stability and manufacturing method therefor
KR101682437B1 (ko) 이중 리더 구조
US20060002035A1 (en) Naturally differentiated sensor
US7016160B2 (en) Differential CPP reader for perpendicular magnetic recording
KR101763741B1 (ko) 합성 반강자성 판독기
KR101662604B1 (ko) 자기저항 센서
US9153251B2 (en) Reader with decoupled magnetic seed layer
CN104252866B (zh) 读取器结构
US20140168818A1 (en) Read sensor for recording head
JP2008112496A (ja) 磁気抵抗効果型再生磁気ヘッド及びその再生磁気ヘッドを用いた磁気記録装置
KR101823489B1 (ko) 리더 구조
US9153250B2 (en) Magnetoresistive sensor
US9147410B2 (en) Reader structure with canted pinning
CN105989857B (zh) 合成反铁磁读取器
JP2008130112A (ja) 磁気抵抗効果型再生磁気ヘッド及びその再生磁気ヘッドを用いた磁気記録装置

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

D13-X000 Search requested

St.27 status event code: A-1-2-D10-D13-srh-X000

D14-X000 Search report completed

St.27 status event code: A-1-2-D10-D14-srh-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

E13-X000 Pre-grant limitation requested

St.27 status event code: A-2-3-E10-E13-lim-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E90F Notification of reason for final refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

E13-X000 Pre-grant limitation requested

St.27 status event code: A-2-3-E10-E13-lim-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20210125

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20210125

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000