GB1412305A - Magnetic head and an apparatus for manufacturing the same - Google Patents

Magnetic head and an apparatus for manufacturing the same

Info

Publication number
GB1412305A
GB1412305A GB5887472A GB5887472A GB1412305A GB 1412305 A GB1412305 A GB 1412305A GB 5887472 A GB5887472 A GB 5887472A GB 5887472 A GB5887472 A GB 5887472A GB 1412305 A GB1412305 A GB 1412305A
Authority
GB
United Kingdom
Prior art keywords
grinding
connections
substrate
hall elements
resistance
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
Application number
GB5887472A
Other languages
English (en)
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of GB1412305A publication Critical patent/GB1412305A/en
Expired 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only 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
    • G11B5/37—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using galvano-magnetic devices, e.g. Hall-effect devices using Hall or Hall-related effect, e.g. planar-Hall effect or pseudo-Hall effect
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
GB5887472A 1972-01-01 1972-12-20 Magnetic head and an apparatus for manufacturing the same Expired GB1412305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47001722A JPS5229607B2 (US06265458-20010724-C00056.png) 1972-01-01 1972-01-01

Publications (1)

Publication Number Publication Date
GB1412305A true GB1412305A (en) 1975-11-05

Family

ID=11509443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5887472A Expired GB1412305A (en) 1972-01-01 1972-12-20 Magnetic head and an apparatus for manufacturing the same

Country Status (6)

Country Link
US (1) US4155106A (US06265458-20010724-C00056.png)
JP (1) JPS5229607B2 (US06265458-20010724-C00056.png)
DE (1) DE2262585A1 (US06265458-20010724-C00056.png)
FR (1) FR2166372B1 (US06265458-20010724-C00056.png)
GB (1) GB1412305A (US06265458-20010724-C00056.png)
NL (1) NL7217442A (US06265458-20010724-C00056.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478913A (en) * 2010-03-22 2011-09-28 Colorchip Monitoring the production of an optical surface for a planar lightwave circuit.

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3821815A (en) * 1972-10-11 1974-06-28 Ibm Apparatus for batch fabricating magnetic film heads and method therefor
NL7406962A (nl) * 1974-05-24 1975-11-26 Philips Nv Magneetkop welke gebruik maakt van een mag- neetveldgevoelig element en werkwijze voor het vervaardigen daarvan.
JPS5347813A (en) * 1977-10-19 1978-04-28 Hitachi Ltd Production of magnetic reproducing head of hall effect
JPS5585578U (US06265458-20010724-C00056.png) * 1978-12-08 1980-06-12
JPS5671819A (en) * 1979-11-14 1981-06-15 Olympus Optical Co Ltd Multichannel magnetic head and its manufacture
JPS56101617A (en) * 1980-01-18 1981-08-14 Olympus Optical Co Ltd Multichannel magnetic head and its manufacture
JPS6025695Y2 (ja) * 1980-02-25 1985-08-02 松下電器産業株式会社 磁気抵抗効果型磁気ヘッド
JPS5718018A (en) * 1980-07-07 1982-01-29 Olympus Optical Co Ltd Magnetic head
US4511942A (en) * 1982-05-07 1985-04-16 Computer & Communications Technology Corp. Automatic throat height control for film heads
US4841625A (en) * 1982-05-07 1989-06-27 Computer And Communications Technology Corporation Automatic throat height control for film head
US4559743A (en) * 1982-09-30 1985-12-24 Magnetic Peripherals, Inc. Method for calibrating a machining sensor
DE3333369A1 (de) * 1982-09-30 1984-04-05 Magnetic Peripherals Inc., Minneapolis, Minn. Verfahren zum eichen eines bearbeitungsfuehlers
US4675986A (en) * 1985-07-29 1987-06-30 International Business Machines Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers
US4670732A (en) * 1985-08-15 1987-06-02 International Business Machines Electrical lapping guide resistor
US4689877A (en) * 1985-08-29 1987-09-01 International Business Machines Corp. Method and apparatus for controlling the throat height of batch fabricated thin film magnetic transducers
US4878315A (en) * 1985-09-03 1989-11-07 The Charles Stark Draper Laboratory, Inc. Griding guide and method
US4748773A (en) * 1985-09-03 1988-06-07 The Charles Stark Draper Laboratory, Inc. Biased grinding assembly
US4861398A (en) * 1987-12-04 1989-08-29 Hitachi, Ltd. Method for making a thin film magnetic head
US4912883A (en) * 1989-02-13 1990-04-03 International Business Machines Corporation Lapping control system for magnetic transducers
JP2540268B2 (ja) * 1992-05-12 1996-10-02 日本碍子株式会社 磁気ヘッド用コア形成材の研磨方法
US5265378A (en) * 1992-07-10 1993-11-30 Lsi Logic Corporation Detecting the endpoint of chem-mech polishing and resulting semiconductor device
US5588199A (en) * 1994-11-14 1996-12-31 International Business Machines Corporation Lapping process for a single element magnetoresistive head
JPH11501442A (ja) * 1995-12-27 1999-02-02 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 磁気ヘッドの製造方法およびこの製造方法によって製造された磁気ヘッド
JP2000251222A (ja) * 1999-02-26 2000-09-14 Tdk Corp 複合型薄膜磁気ヘッドの製造方法およびそれに用いるウエファ
JP2002260203A (ja) * 2001-03-02 2002-09-13 Tdk Corp 薄膜磁気ヘッドの製造方法、及びウエハ構造
US6950289B2 (en) * 2001-03-16 2005-09-27 Lafe Computer Magnetics Ltd. Embedded lapping guide for a magnetic head cluster
US6700738B1 (en) 2001-03-16 2004-03-02 Kyusik Sin Read/write head coil tap having upper and lower portions
JP4515420B2 (ja) * 2006-08-01 2010-07-28 セイコーインスツル株式会社 近接場光利用ヘッドの製造方法
JP2017037695A (ja) * 2015-08-12 2017-02-16 株式会社東芝 磁気記録ヘッドの製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597888A (en) * 1968-09-19 1971-08-10 Toyoda Machine Works Ltd Grinding machine
US3775910A (en) * 1970-06-19 1973-12-04 Tokyo Seimitsu Co Ltd Utomatic sizing device for measuring apparatus
US3699720A (en) * 1971-04-26 1972-10-24 Cincinnati Milacron Inc Adaptive control for a grinding machine
JPS5224404B1 (US06265458-20010724-C00056.png) * 1971-04-29 1977-07-01
US3821815A (en) * 1972-10-11 1974-06-28 Ibm Apparatus for batch fabricating magnetic film heads and method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478913A (en) * 2010-03-22 2011-09-28 Colorchip Monitoring the production of an optical surface for a planar lightwave circuit.

Also Published As

Publication number Publication date
DE2262585A1 (de) 1974-07-11
NL7217442A (US06265458-20010724-C00056.png) 1973-07-03
FR2166372A1 (US06265458-20010724-C00056.png) 1973-08-17
FR2166372B1 (US06265458-20010724-C00056.png) 1976-10-29
JPS5229607B2 (US06265458-20010724-C00056.png) 1977-08-03
JPS4875015A (US06265458-20010724-C00056.png) 1973-10-09
US4155106A (en) 1979-05-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee