DE69224432D1 - Magnetoresistiver kopf - Google Patents

Magnetoresistiver kopf

Info

Publication number
DE69224432D1
DE69224432D1 DE69224432T DE69224432T DE69224432D1 DE 69224432 D1 DE69224432 D1 DE 69224432D1 DE 69224432 T DE69224432 T DE 69224432T DE 69224432 T DE69224432 T DE 69224432T DE 69224432 D1 DE69224432 D1 DE 69224432D1
Authority
DE
Germany
Prior art keywords
magnetoresistive head
magnetoresistive
head
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
DE69224432T
Other languages
English (en)
Other versions
DE69224432T2 (de
Inventor
Yoshifumi Mizoshita
Takao Koshikawa
Hitoshi Kanai
Junichi Kane
Yoshinori Otsuka
Yukinori Ikegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69224432D1 publication Critical patent/DE69224432D1/de
Publication of DE69224432T2 publication Critical patent/DE69224432T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3176—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps
    • G11B5/3179—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes
    • G11B5/3183—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes intersecting the gap plane, e.g. "horizontal head structure"
    • 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
    • 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
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
    • G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
    • G11B5/3925—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure the two parts being thin 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69224432T 1991-10-21 1992-10-20 Magnetoresistiver kopf Expired - Fee Related DE69224432T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3272370A JPH05114119A (ja) 1991-10-21 1991-10-21 磁気抵抗効果型磁気ヘツド
PCT/JP1992/001363 WO1993008562A2 (en) 1991-10-21 1992-10-20 Magneto-resistive head

Publications (2)

Publication Number Publication Date
DE69224432D1 true DE69224432D1 (de) 1998-03-19
DE69224432T2 DE69224432T2 (de) 1998-06-04

Family

ID=17512946

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224432T Expired - Fee Related DE69224432T2 (de) 1991-10-21 1992-10-20 Magnetoresistiver kopf

Country Status (5)

Country Link
US (2) US5583726A (de)
EP (1) EP0563398B1 (de)
JP (1) JPH05114119A (de)
DE (1) DE69224432T2 (de)
WO (1) WO1993008562A2 (de)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5995339A (en) * 1993-03-18 1999-11-30 Fujitsu Limited Magnetoresistive head with a front flux guide and an embedded MR element
JP2788403B2 (ja) * 1993-03-18 1998-08-20 富士通株式会社 磁気抵抗効果ヘッド
FR2712420B1 (fr) * 1993-11-08 1995-12-15 Commissariat Energie Atomique Tête magnétique de lecture à élément magnétorésistant multicouche et à concentrateur et son procédé de réalisation.
FR2716741B1 (fr) * 1994-02-28 1996-04-05 Commissariat Energie Atomique Tête magnétique de lecture à élément magnétorésistant et à moyens de polarisation perfectionnés.
KR0153311B1 (ko) * 1994-04-06 1998-12-15 가나이 쯔도무 자기 저항 효과형 박막 자기 헤드 및 그 제조 방법
FR2724482B1 (fr) * 1994-09-13 1996-12-06 Commissariat Energie Atomique Tete magnetique a magnetoresistance multicouche longitudinale sous-jacente
US5867350A (en) * 1995-03-29 1999-02-02 Sony Corporation Magneto-resistance effect head with insulated bias conductor embedded in shield groove
US6195232B1 (en) * 1995-08-24 2001-02-27 Torohead, Inc. Low-noise toroidal thin film head with solenoidal coil
EP0768642A3 (de) * 1995-10-13 1998-12-16 Read-Rite Corporation Magnetkopf mit vorgespanntem GMR-Element und Lesestromkompensierung
US20010023756A1 (en) * 1996-12-03 2001-09-27 Naoto Tanaka Assembled structure having an enlarged heat transfer area for heat radiation therefrom
FR2761477B1 (fr) * 1997-04-01 1999-04-23 Commissariat Energie Atomique Capteur de champ magnetique a magnetoresistance
US6310413B1 (en) 1997-05-30 2001-10-30 Iomega Corporation Steering magnets to reduce magnetic leakage flux in a disk drive
FR2769399B1 (fr) * 1997-10-06 2000-01-28 Silmag Sa Tete magnetique avec une partie lecture et une partie ecriture
FR2769400B1 (fr) * 1997-10-06 2000-01-28 Silmag Sa Tete magnetique de lecture a element magnetoresistant
FR2772965B1 (fr) * 1997-12-22 2000-04-14 Silmag Sa Senseur de champ magnetique et tete magnetique de lecture utilisant un tel senseur
FR2772966B1 (fr) * 1997-12-22 2000-03-10 Silmag Sa Tete magnetique de lecture a element magneto resistant et a grande sensibilite
US5969934A (en) * 1998-04-10 1999-10-19 Varian Semiconductor Equipment Associats, Inc. Electrostatic wafer clamp having low particulate contamination of wafers
CN1146868C (zh) 1998-07-21 2004-04-21 西加特技术有限责任公司 磁头传感器的散热器件及其散热方法
FR2786909B1 (fr) * 1998-12-03 2001-01-05 Jean Pierre Lazarri Tete magnetique de lecture a magnetoresistance geante pour hautes densites d'informations
US6223420B1 (en) * 1998-12-04 2001-05-01 International Business Machines Corporation Method of making a read head with high resistance soft magnetic flux guide layer for enhancing read sensor efficiency
US6282056B1 (en) 1999-04-08 2001-08-28 Read-Rite Corporation Tapered stitch pole writer for high density magnetic recording
US6407891B1 (en) * 1999-05-24 2002-06-18 International Business Machines Corporation Magnetic read/write head having electromagnetic field cancellation element
US6477008B1 (en) * 1999-05-24 2002-11-05 International Business Machines Corporation Magnetic recording transducer with electronic shield
JP2001006130A (ja) * 1999-06-24 2001-01-12 Tdk Corp トンネル磁気抵抗効果型ヘッド
US6510030B1 (en) * 1999-08-17 2003-01-21 Seagate Technology, Llc Transducing head and method for forming a recessed shield for a transducing head
JP2002025012A (ja) * 2000-07-10 2002-01-25 Tdk Corp 磁気抵抗効果型薄膜磁気ヘッド
JP2002074623A (ja) * 2000-08-31 2002-03-15 Toshiba Corp 水平ヨーク型磁気ヘッドおよび磁気記録装置ならびに磁気再生装置
JP2002298312A (ja) 2001-03-28 2002-10-11 Hitachi Ltd 磁気ヘッドおよびその製造方法
US20020171962A1 (en) * 2001-05-15 2002-11-21 Seagate Technology Llc Semiconductor/metal read sensor for magnetic recording
US6930862B2 (en) * 2002-01-07 2005-08-16 Hitachi Global Storage Technologies Netherlands B.V. Shielded extraordinary magnetoresistance head
US6888705B2 (en) * 2002-01-18 2005-05-03 Hitachi Global Storage Technologies Netherlands B.V. High linear density tunnel junction flux guide read head with in-stack longitudinal bias stack (LBS)
US7379287B2 (en) * 2003-10-23 2008-05-27 Matsushita Electric Industrial Co., Ltd. Shielding method and shielding apparatus
US20060011227A1 (en) * 2004-07-15 2006-01-19 Mcbirney Kevin H Hiking staff
JP2011086331A (ja) 2009-10-14 2011-04-28 Hitachi Global Storage Technologies Netherlands Bv 磁気抵抗効果型磁気ヘッド
US8315013B2 (en) * 2010-05-10 2012-11-20 International Business Machines Corporation Magnetic write head with flux diverting structure
US8486797B1 (en) 2012-05-25 2013-07-16 International Business Machines Corporation Bipolar junction transistor with epitaxial contacts
ITTO20130436A1 (it) * 2013-05-29 2014-11-30 St Microelectronics Srl Magnetoresistore integrato di tipo amr a basso consumo

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887945A (en) * 1973-12-12 1975-06-03 Ibm Head assembly for recording and reading, employing inductive and magnetoresistive elements
NL7901578A (nl) * 1979-02-28 1980-09-01 Philips Nv Magnetoweerstandkop.
JPS6069806A (ja) * 1983-09-26 1985-04-20 Sharp Corp 薄膜磁気ヘッド
US4782415A (en) * 1985-10-02 1988-11-01 International Business Machines Corp. Differential twin track vertical read/write magnetic head structure
JPS62291713A (ja) * 1986-06-10 1987-12-18 Nec Corp 複合型薄膜磁気ヘツド
US4907113A (en) * 1987-07-29 1990-03-06 Digital Equipment Corporation Three-pole magnetic recording head
US5111352A (en) * 1987-07-29 1992-05-05 Digital Equipment Corporation Three-pole magnetic head with reduced flux leakage
JPS6432912A (en) * 1987-07-29 1989-02-02 Mazda Motor Suspension device of automobile
US4881143A (en) * 1988-01-19 1989-11-14 Hewlett-Packard Company Compensated magneto-resistive read head
JP2761223B2 (ja) * 1988-09-30 1998-06-04 株式会社日立製作所 記録再生複合ヘッド及びその製造方法
FR2645314B1 (fr) * 1989-03-29 1991-05-31 Commissariat Energie Atomique Tete magnetique a magnetoresistance pour enregistrement longitudinal et procede de realisation d'une telle tete
FR2657189B1 (fr) * 1990-01-18 1993-12-31 Commissariat A Energie Atomique Tete magnetique de lecture et d'ecriture a element magnetoresistant.
US5164869A (en) * 1991-02-27 1992-11-17 International Business Machines Corporation Magnetic recording head with integrated magnetoresistive element and open yoke
US5193039A (en) * 1991-04-17 1993-03-09 Digital Equipment Corporation Permanet magnet easy-axis biased magnetoresistive head
US5241439A (en) * 1991-07-02 1993-08-31 U.S. Philips Corporation Combined read/write thin film magnetic head with two pairs of flux guides
US5270895A (en) * 1991-07-05 1993-12-14 U.S. Philips Corporation Combined read/write thin-film magnetic head with composite shared flux guide

Also Published As

Publication number Publication date
WO1993008562A2 (en) 1993-04-29
DE69224432T2 (de) 1998-06-04
JPH05114119A (ja) 1993-05-07
EP0563398A1 (de) 1993-10-06
WO1993008562A3 (en) 1993-07-22
EP0563398B1 (de) 1998-02-11
US5777827A (en) 1998-07-07
US5583726A (en) 1996-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee