DE3579498D1 - Duennschicht-mehrspur-magnetkoepfe und verfahren zu deren herstellung. - Google Patents

Duennschicht-mehrspur-magnetkoepfe und verfahren zu deren herstellung.

Info

Publication number
DE3579498D1
DE3579498D1 DE8585105985T DE3579498T DE3579498D1 DE 3579498 D1 DE3579498 D1 DE 3579498D1 DE 8585105985 T DE8585105985 T DE 8585105985T DE 3579498 T DE3579498 T DE 3579498T DE 3579498 D1 DE3579498 D1 DE 3579498D1
Authority
DE
Germany
Prior art keywords
production
magnetic heads
thick layer
multiple track
layer multiple
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
DE8585105985T
Other languages
English (en)
Inventor
Masamichi Yamada
Masakatsu Saito
Takumi Sasaki
Katsuo Konishi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Priority claimed from JP11454184A external-priority patent/JPS60258718A/ja
Priority claimed from JP11454284A external-priority patent/JPS60258719A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3579498D1 publication Critical patent/DE3579498D1/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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE8585105985T 1984-06-06 1985-05-15 Duennschicht-mehrspur-magnetkoepfe und verfahren zu deren herstellung. Expired - Lifetime DE3579498D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11454184A JPS60258718A (ja) 1984-06-06 1984-06-06 多素子薄膜磁気ヘツド
JP11454284A JPS60258719A (ja) 1984-06-06 1984-06-06 薄膜磁気ヘツド

Publications (1)

Publication Number Publication Date
DE3579498D1 true DE3579498D1 (de) 1990-10-11

Family

ID=26453286

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585105985T Expired - Lifetime DE3579498D1 (de) 1984-06-06 1985-05-15 Duennschicht-mehrspur-magnetkoepfe und verfahren zu deren herstellung.

Country Status (3)

Country Link
US (1) US4752850A (de)
EP (1) EP0163998B1 (de)
DE (1) DE3579498D1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH025217A (ja) * 1988-06-23 1990-01-10 Sharp Corp 薄膜磁気ヘッドチップ
US5225953A (en) * 1989-11-09 1993-07-06 Sumitomo Special Metal Co., Ltd. Magnetic thin film head of a single magnetic pole for perpendicular recording and reproduction
JPH0490105A (ja) * 1990-08-02 1992-03-24 Sharp Corp 磁気記録再生装置およびそれに用いられる磁気テープ
US5285341A (en) * 1990-12-17 1994-02-08 Canon Kabushiki Kaisha Thin film magnetic head
US5173826A (en) * 1991-06-03 1992-12-22 Read-Rite Corp. Thin film head with coils of varying thickness
US5394285A (en) * 1993-07-21 1995-02-28 Storage Technology Corporation Multi-track longitudinal, metal-in-gap head
US6191918B1 (en) 1998-10-23 2001-02-20 International Business Machines Corporation Embedded dual coil planar structure
US6226149B1 (en) * 1998-12-15 2001-05-01 International Business Machines Corporation Planar stitched write head having write coil insulated with inorganic insulation
US6496328B1 (en) 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US6989960B2 (en) * 1999-12-30 2006-01-24 Advanced Research Corporation Wear pads for timing-based surface film servo heads
JP4009233B2 (ja) * 2003-08-21 2007-11-14 アルプス電気株式会社 垂直磁気記録ヘッドの製造方法
US8144424B2 (en) 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
US7450341B2 (en) 2004-05-04 2008-11-11 Advanced Research Corporation Intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording heads and method of making the same
WO2009121073A1 (en) 2008-03-28 2009-10-01 Advanced Research Corporation Thin film planar arbitrary gap pattern magnetic head
US8767331B2 (en) 2009-07-31 2014-07-01 Advanced Research Corporation Erase drive system and methods of erasure for tape data cartridge
US11171085B2 (en) * 2018-05-18 2021-11-09 Taiwan Semiconductor Manufacturing Co., Ltd. Semiconductor device structure with magnetic layer and method for forming the same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052749A (en) * 1976-05-19 1977-10-04 Matsushita Electric Industrial Co., Ltd. Thin film magnetic head
JPS5674811A (en) * 1979-11-20 1981-06-20 Matsushita Electric Ind Co Ltd Magnetic head
JPS57117117A (en) * 1981-01-09 1982-07-21 Matsushita Electric Ind Co Ltd Thin film magnetic head
JPS57155339A (en) * 1981-03-20 1982-09-25 Matsushita Electric Ind Co Ltd Magnetic head and production thereof
US4578728A (en) * 1981-12-09 1986-03-25 Matsushita Electric Industrial Co., Ltd. Magnetic head
JPS58105025U (ja) * 1982-01-07 1983-07-16 日本ビクター株式会社 マルチトラツク磁気ヘツド
JPS58128021A (ja) * 1982-01-25 1983-07-30 Toshiba Corp 磁気ヘツド
JPS58212616A (ja) * 1982-06-03 1983-12-10 Sanyo Electric Co Ltd 磁気ヘツド
JPS5975422A (ja) * 1982-10-25 1984-04-28 Hitachi Ltd 薄膜磁気ヘツド
JPS59104717A (ja) * 1982-12-08 1984-06-16 Comput Basic Mach Technol Res Assoc 薄膜磁気ヘツドおよびその製造方法
JPS59142716A (ja) * 1983-02-04 1984-08-16 Hitachi Ltd 磁気ヘツドおよびその製造方法
JPS60231308A (ja) * 1984-05-01 1985-11-16 Sumitomo Special Metals Co Ltd アルミナ系磁気ヘッド用基板材料及びその製造方法

Also Published As

Publication number Publication date
EP0163998A2 (de) 1985-12-11
EP0163998A3 (en) 1986-11-05
US4752850A (en) 1988-06-21
EP0163998B1 (de) 1990-09-05

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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