DE3481660D1 - Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe. - Google Patents

Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe.

Info

Publication number
DE3481660D1
DE3481660D1 DE8484302234T DE3481660T DE3481660D1 DE 3481660 D1 DE3481660 D1 DE 3481660D1 DE 8484302234 T DE8484302234 T DE 8484302234T DE 3481660 T DE3481660 T DE 3481660T DE 3481660 D1 DE3481660 D1 DE 3481660D1
Authority
DE
Germany
Prior art keywords
thick film
inductive recording
film converter
magnetoresistive
playback
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 - Lifetime
Application number
DE8484302234T
Other languages
English (en)
Inventor
Mike L Covault
Ralph F Simmons
Bruce J Jackson
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE3481660D1 publication Critical patent/DE3481660D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/398—Specially shaped layers
    • 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
    • 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE8484302234T 1983-04-04 1984-04-02 Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe. Expired - Lifetime DE3481660D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/482,654 US4555740A (en) 1983-04-04 1983-04-04 Thin film transducer head for inductive recording and magnetoresistive reading

Publications (1)

Publication Number Publication Date
DE3481660D1 true DE3481660D1 (de) 1990-04-19

Family

ID=23916901

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484302234T Expired - Lifetime DE3481660D1 (de) 1983-04-04 1984-04-02 Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe.

Country Status (4)

Country Link
US (1) US4555740A (de)
EP (1) EP0124293B1 (de)
JP (1) JPS59193518A (de)
DE (1) DE3481660D1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731686A (en) * 1984-03-21 1988-03-15 Canon Denshi Kabushiki Kaisha Magnetic head
US4644430A (en) * 1984-08-27 1987-02-17 Eastman Kodak Company Slotted sensor in yoke-type magneto-resistive head
GB2169434B (en) * 1984-11-24 1989-09-20 Magnetic Components Limited Magnetoresistive sensors
JP2564262B2 (ja) * 1985-02-27 1996-12-18 株式会社日立製作所 磁気抵抗効果型ヘツド
DE3613619A1 (de) * 1985-04-26 1986-10-30 Sharp K.K., Osaka Duennfilm-magnetkopf
US4649447A (en) * 1985-08-15 1987-03-10 International Business Machines Combed MR sensor
US4967298A (en) * 1987-02-17 1990-10-30 Mowry Greg S Magnetic head with magnetoresistive sensor, inductive write head, and shield
JP2599380B2 (ja) * 1987-02-17 1997-04-09 ティーディーケイ株式会社 浮上型磁気ヘツド
DE3818393A1 (de) * 1988-05-30 1989-12-14 Siemens Ag Duennfilm-magnetkopf mit hoher nebenspurdaempfung
EP0387364A1 (de) * 1989-03-13 1990-09-19 Siemens Aktiengesellschaft Dünnfilm-Magnetkopfeinheit
US5010025A (en) * 1989-04-03 1991-04-23 Grumman Aerospace Corporation Method of making trench JFET integrated circuit elements
DE69217416T2 (de) * 1991-04-22 1997-09-04 Sharp Kk Kombinierter Dünnfilmmagnetkopf
JP2768372B2 (ja) * 1992-04-20 1998-06-25 日本電気株式会社 複合型薄膜磁気ヘッド
US5621595A (en) * 1992-10-20 1997-04-15 Cohen; Uri Pinched-gap magnetic recording thin film head
US5945007A (en) * 1992-10-20 1999-08-31 Cohen; Uri Method for etching gap-vias in a magnetic thin film head and product
US5420736A (en) * 1994-04-15 1995-05-30 International Business Machines Corporation MR read transducer with thermal noise cancellation
SG34292A1 (en) * 1994-12-30 1996-12-06 Ibm Read/write magnetoresistive (MR) head with sunken components
JPH09167315A (ja) * 1995-12-15 1997-06-24 Hitachi Ltd 録再分離型薄膜磁気ヘッド
US5768070A (en) * 1997-05-14 1998-06-16 International Business Machines Corporation Horizontal thin film write, MR read head
US6985330B2 (en) * 2003-07-28 2006-01-10 Hitachi Global Technologies Netherlands B.V. High efficiency side-by-side thin film head utilizing canted shield yokes
US7889458B2 (en) * 2006-11-13 2011-02-15 Hitachi Global Storage Technologies Netherlands B.V. Write head with self-cross biased pole for high speed magnetic recording
US20090010046A1 (en) * 2007-06-28 2009-01-08 Krishnakumar Mani magnetic memory device with non-rectangular cross section current carrying conductors
US10950264B2 (en) * 2019-06-26 2021-03-16 Seagate Technology Llc Transducer positions for dual actuator data storage devices

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813692A (en) * 1972-10-11 1974-05-28 Ibm Internally biased magnetoresistive magnetic transducer
US3814863A (en) * 1972-10-11 1974-06-04 Ibm Internally biased magnetoresistive magnetic transducer
US3887945A (en) * 1973-12-12 1975-06-03 Ibm Head assembly for recording and reading, employing inductive and magnetoresistive elements
US4001890A (en) * 1974-08-05 1977-01-04 Honeywell Information Systems, Inc. Double chip flying head
US4255772A (en) * 1979-06-29 1981-03-10 International Business Machines Corporation Read/write magnetic head assembly with magnetoresistive sensor
JPS5654629A (en) * 1979-10-08 1981-05-14 Hitachi Ltd Compound thin-film magnetic head
JPS58166527A (ja) * 1982-03-29 1983-10-01 Nec Corp 磁気抵抗効果ヘツド
US4504880A (en) * 1982-08-09 1985-03-12 International Business Machines Corporation Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly

Also Published As

Publication number Publication date
EP0124293B1 (de) 1990-03-14
JPH0475570B2 (de) 1992-12-01
EP0124293A3 (en) 1985-12-18
JPS59193518A (ja) 1984-11-02
US4555740A (en) 1985-11-26
EP0124293A2 (de) 1984-11-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),