KR930003020A - 박막 자기 헤드 - Google Patents

박막 자기 헤드 Download PDF

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Publication number
KR930003020A
KR930003020A KR1019920011971A KR920011971A KR930003020A KR 930003020 A KR930003020 A KR 930003020A KR 1019920011971 A KR1019920011971 A KR 1019920011971A KR 920011971 A KR920011971 A KR 920011971A KR 930003020 A KR930003020 A KR 930003020A
Authority
KR
South Korea
Prior art keywords
thin film
head
flux guide
flux
magnetic head
Prior art date
Application number
KR1019920011971A
Other languages
English (en)
Other versions
KR100260804B1 (ko
Inventor
요스페후스 마리아 루이그록 야코부스
안토니우스 프론크 프란시스쿠스
Original Assignee
프레데릭 인드 스미트
엔.브이.필립스 글로아이람펜파브리켄
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 프레데릭 인드 스미트, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 프레데릭 인드 스미트
Publication of KR930003020A publication Critical patent/KR930003020A/ko
Application granted granted Critical
Publication of KR100260804B1 publication Critical patent/KR100260804B1/ko

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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
    • 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
    • G11B5/31—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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49039—Fabricating head structure or component thereof including measuring or testing with dual gap materials

Abstract

내용 없음.

Description

박막 자기 헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 자기 헤드의 제1실시예의 단면도,
제2도는 제2실시예의 개략적인 단면도.

Claims (8)

  1. 박막 자기 헤드에 있어서, 기판과 기판으로부터 다른 거리에 위치하고 있는 제1변환소자 및 제2변환 소자 및 상기 소자가 협동하여 자기에 대해 자기적으로 병렬 연장되는 3개의 전도 플럭스 가이드, 상기 기판으로부터 바라볼 때 갭들이 다른 하나 뒤에 하나가 위치하게 되는, 제1플럭스 가이드와 제2플럭스 가이드간에 연장되는 헤드면에 인접한 비-자성 판독 갭과 제2플럭스 가이드 및 제3플럭스 가이드 사이에 연장되는 헤드면에 인접한 비-자 성 기록 갭을 포함하며, 자기 헤드는, 여러 층으로 형성되고 제1플럭스 가이드와 제3플럭스 가이드 사이에서 연장되는 제2플럭스 가이드는 두개의 연자성체 층과 상기 기판에 대해 사실상 병렬로 연장되고 상기 연자성체 층 사이에 위치한 비자성체로 이루어진 절연층을 포함하며, 상기 연자성체 층이 헤드 정면 근처에서 자기적 전도 방식으로 상호 접속되는 것을 특징으로 하는 박막 자기 헤드.
  2. 제1항에 있어서, 상기 절연층이 헤드면으로부터 일정한 거리에 위치하며, 제2플럭스 가이드가 상기 헤드면에 위치한 단부를 가지고 오직 연자성체로 형성됐으며, 상기 절연층이 상기 단부에 근접한 것을 특징으로 하는 박막 자기 헤드.
  3. 1 또는 2항에 있어서, 헤드면에서 볼때 h가 제2플럭스 가이드의 가장 짧은 연자성체의 높이이며,이고, μra및 μrb는 각각 상기 연자성체의 제1및 제2층 물질의 상대 투자율이며,이고 ta및 tb는 각각 제1 및 제2층의 두께에서, 연자성체층 사이의 절연층이 최소한 3h2/μr·t과 같은 두께를 가지는 것을 특징으로 하는 박막 자기 헤드.
  4. 제3항에 있어서, 절연층의 두께가 적어도 1㎛인 것을 특징으로 하는 박막 자기 헤드.
  5. 1,2,3또는 4항에 있어서, 연자성체 층들이 적어도 거의 같은 두께를 가지는 것을 특징으로 하는 박막 자기 헤드.
  6. 제1,2,3,4항 또는 5항에 있어서, 제1변환 소자가 자기 저항소자이며, 제2변환 소자가 유도성 소자이고, 제1플럭스 가이드는 그 사이에 상기 자기 저항성 소자에 의해 브릿지 된 공간이 존재하는 공간적으로 분리된 두개의 플럭스 가이드를 가진 차단된 층이며, 자기 저항 소자가 유도성 소자로부터 멀리 떨어진 제1플럭스 가이드의 측면에 존재하는 것을 톡징으로 하는 박막 자기 헤드.
  7. 제6항에 있어서, 상기 제1플럭스 가이드가 상기 비-자성 기판에 가장 근접하게 위치한 플럭스이며, 상기 자기 저항 소자는 상기 플럭스 가이드와 기판 사이에서 연장되는 것을 특징으로 하는 박막 자기 헤드.
  8. 제1항 내지 5항 중 어느 한 항에 있어서, 적어도 하나의 변환 소자가 헤드면 까지 연장하는 것을 특징으로 하는 박막 자기 헤드.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920011971A 1991-07-05 1992-07-06 박막 자기 헤드 KR100260804B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP91201739.9 1991-07-05
EP91201739 1991-07-05

Publications (2)

Publication Number Publication Date
KR930003020A true KR930003020A (ko) 1993-02-23
KR100260804B1 KR100260804B1 (ko) 2000-10-02

Family

ID=8207757

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920011971A KR100260804B1 (ko) 1991-07-05 1992-07-06 박막 자기 헤드

Country Status (5)

Country Link
US (1) US5270895A (ko)
EP (1) EP0521564B1 (ko)
JP (1) JPH05266426A (ko)
KR (1) KR100260804B1 (ko)
DE (1) DE69221962T2 (ko)

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JPH05114119A (ja) * 1991-10-21 1993-05-07 Fujitsu Ltd 磁気抵抗効果型磁気ヘツド
JPH05166137A (ja) * 1991-12-16 1993-07-02 Hitachi Ltd 磁気ヘッドおよび記録再生装置
US6101067A (en) * 1992-12-17 2000-08-08 Sony Corporation Thin film magnetic head with a particularly shaped magnetic pole piece and spaced relative to an MR element
JP2790011B2 (ja) * 1993-08-20 1998-08-27 日本電気株式会社 浮動ヘッドスライダの製造方法
US5608593A (en) * 1995-03-09 1997-03-04 Quantum Peripherals Colorado, Inc. Shaped spin valve type magnetoresistive transducer and method for fabricating the same incorporating domain stabilization technique
EP0760999A1 (en) * 1995-03-24 1997-03-12 Koninklijke Philips Electronics N.V. System comprising a magnetic head, a measuring device and a current device
KR100201681B1 (ko) * 1996-01-03 1999-06-15 포만 제프리 엘 직교 자기저항 센서와 자기 저장 시스템 및 직교 자기저항 센서 제조 방법
US5742457A (en) * 1996-01-17 1998-04-21 International Business Machines Corporation Horizontal shared-pole magnetic read/write head having polarization conductor disabling write pole
US5627704A (en) * 1996-02-12 1997-05-06 Read-Rite Corporation Thin film giant magnetoresistive CPP transducer with flux guide yoke structure
EP0789250A3 (en) 1996-02-12 1997-10-01 Read Rite Corp Giant magnetoresistive thin film transducer with a flow guide structure
CN1181831A (zh) * 1996-03-08 1998-05-13 菲利浦电子有限公司 多道磁头
JP3520170B2 (ja) * 1996-04-02 2004-04-19 Ｔｄｋ株式会社 複合型薄膜磁気ヘッド
JPH09293217A (ja) * 1996-04-26 1997-11-11 Fujitsu Ltd 磁気抵抗効果型ヘッド
US5930084A (en) 1996-06-17 1999-07-27 International Business Machines Corporation Stabilized MR sensor and flux guide joined by contiguous junction
US5843537A (en) * 1997-03-07 1998-12-01 Quantum Corporation Insulator cure process for giant magnetoresistive heads
US6178070B1 (en) 1999-02-11 2001-01-23 Read-Rite Corporation Magnetic write head and method for making same
US6765756B1 (en) 1999-03-12 2004-07-20 Western Digital (Fremont), Inc. Ultra-short yoke and ultra-low stack height writer and method of fabrication
US6417998B1 (en) 1999-03-23 2002-07-09 Read-Rite Corporation Ultra small advanced write transducer and method for making same
US6404601B1 (en) 2000-01-25 2002-06-11 Read-Rite Corporation Merged write head with magnetically isolated poletip
US20030002225A1 (en) * 2001-06-29 2003-01-02 Storage Technology Corporation Apparatus and method of making a reduced sensitivity spin valve sensor apparatus in which a flux injection efficiency is reduced
US7057864B2 (en) * 2001-07-10 2006-06-06 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for achieving physical connection between the flux guide and the free layer and that insulates the flux guide from the shields
US6721129B2 (en) * 2001-07-27 2004-04-13 International Business Machines Corporation Low frequency attenuator in a magnetic write head
US20040060164A1 (en) * 2002-09-26 2004-04-01 Honeywell International Inc. High-performance substrate for magnetic isolator
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JPS5481817A (en) * 1977-12-13 1979-06-29 Fujitsu Ltd Thin-film magnetic head
JPS5998319A (ja) * 1982-11-29 1984-06-06 Sony Corp 磁気ヘツド
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JPS61120318A (ja) * 1984-11-15 1986-06-07 Matsushita Electric Ind Co Ltd 一体化薄膜磁気ヘツド
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Also Published As

Publication number Publication date
DE69221962T2 (de) 1998-03-05
EP0521564A3 (en) 1993-10-27
EP0521564B1 (en) 1997-09-03
DE69221962D1 (de) 1997-10-09
EP0521564A2 (en) 1993-01-07
US5270895A (en) 1993-12-14
KR100260804B1 (ko) 2000-10-02
JPH05266426A (ja) 1993-10-15

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