JPS5778613A - Thin film magnetic head and its manufacture - Google Patents

Thin film magnetic head and its manufacture

Info

Publication number
JPS5778613A
JPS5778613A JP15139380A JP15139380A JPS5778613A JP S5778613 A JPS5778613 A JP S5778613A JP 15139380 A JP15139380 A JP 15139380A JP 15139380 A JP15139380 A JP 15139380A JP S5778613 A JPS5778613 A JP S5778613A
Authority
JP
Japan
Prior art keywords
magnetic
layer
protective plate
magnetic layer
etching
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.)
Granted
Application number
JP15139380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS645366B2 (enrdf_load_stackoverflow
Inventor
Akira Niimi
Hirotsugu Takagi
Takeshi Sawada
Hiroshi Yoneda
Shuzo Abiko
Hiroichi Goto
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP15139380A priority Critical patent/JPS5778613A/ja
Publication of JPS5778613A publication Critical patent/JPS5778613A/ja
Publication of JPS645366B2 publication Critical patent/JPS645366B2/ja
Granted 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
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic 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
    • 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
    • G11B5/3109—Details
    • G11B5/312—Details for reducing flux leakage between the electrical coil layers and the magnetic cores or poles or between the magnetic cores or poles
    • 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
    • G11B5/313—Disposition of layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP15139380A 1980-10-30 1980-10-30 Thin film magnetic head and its manufacture Granted JPS5778613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15139380A JPS5778613A (en) 1980-10-30 1980-10-30 Thin film magnetic head and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15139380A JPS5778613A (en) 1980-10-30 1980-10-30 Thin film magnetic head and its manufacture

Publications (2)

Publication Number Publication Date
JPS5778613A true JPS5778613A (en) 1982-05-17
JPS645366B2 JPS645366B2 (enrdf_load_stackoverflow) 1989-01-30

Family

ID=15517596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15139380A Granted JPS5778613A (en) 1980-10-30 1980-10-30 Thin film magnetic head and its manufacture

Country Status (1)

Country Link
JP (1) JPS5778613A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212616A (ja) * 1982-06-03 1983-12-10 Sanyo Electric Co Ltd 磁気ヘツド
JPS6010409A (ja) * 1983-06-29 1985-01-19 Fujitsu Ltd 薄膜磁気ヘツドの製造方法
JPS60119614A (ja) * 1983-11-30 1985-06-27 Nec Kansai Ltd 薄膜磁気ヘツドの製造方法
JPS61117715A (ja) * 1984-11-13 1986-06-05 Nec Corp 薄膜磁気ヘツド
JPS61284814A (ja) * 1985-06-11 1986-12-15 Canon Inc 薄膜磁気ヘツド
US4673999A (en) * 1983-08-29 1987-06-16 Sony Corporation Multi channel magnetic transducer head
US4755898A (en) * 1983-06-13 1988-07-05 Matsushita Electric Industrial Co., Ltd. Amorphous magnetic head
US4782416A (en) * 1984-06-04 1988-11-01 Siemens Aktiengesellschaft Magnetic head having two legs of predetermined saturation magnetization for a recording medium to be magnetized vertically
US6337783B1 (en) 1998-08-12 2002-01-08 International Business Machines Corporation Write head with multi-stitched second pole piece
US7127800B2 (en) 2001-08-31 2006-10-31 Hitachi Global Storage Technologies Netherlands, B.V. Narrow write head pole tip fabricated by sidewall processing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0359965A (ja) * 1989-07-28 1991-03-14 Nippon Telegr & Teleph Corp <Ntt> 薄形２次電池およびそのための充電器と充電方法
JPH0367472A (ja) * 1989-08-04 1991-03-22 Nippon Telegr & Teleph Corp <Ntt> 薄形２次電池用充電器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184618A (ja) * 1975-01-22 1976-07-24 Nippon Electric Co Jikihetsudo

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184618A (ja) * 1975-01-22 1976-07-24 Nippon Electric Co Jikihetsudo

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212616A (ja) * 1982-06-03 1983-12-10 Sanyo Electric Co Ltd 磁気ヘツド
US4755898A (en) * 1983-06-13 1988-07-05 Matsushita Electric Industrial Co., Ltd. Amorphous magnetic head
JPS6010409A (ja) * 1983-06-29 1985-01-19 Fujitsu Ltd 薄膜磁気ヘツドの製造方法
US4673999A (en) * 1983-08-29 1987-06-16 Sony Corporation Multi channel magnetic transducer head
JPS60119614A (ja) * 1983-11-30 1985-06-27 Nec Kansai Ltd 薄膜磁気ヘツドの製造方法
US4782416A (en) * 1984-06-04 1988-11-01 Siemens Aktiengesellschaft Magnetic head having two legs of predetermined saturation magnetization for a recording medium to be magnetized vertically
JPS61117715A (ja) * 1984-11-13 1986-06-05 Nec Corp 薄膜磁気ヘツド
JPS61284814A (ja) * 1985-06-11 1986-12-15 Canon Inc 薄膜磁気ヘツド
US6337783B1 (en) 1998-08-12 2002-01-08 International Business Machines Corporation Write head with multi-stitched second pole piece
US6612017B2 (en) 1998-08-12 2003-09-02 Hitachi Global Storage Technologies Netherlands B.V. Method of making a write head with multi-stitched second pole piece
US7127800B2 (en) 2001-08-31 2006-10-31 Hitachi Global Storage Technologies Netherlands, B.V. Narrow write head pole tip fabricated by sidewall processing
US7199972B2 (en) 2001-08-31 2007-04-03 Hitachi Global Storage Technologies Netherlands, B.V. Narrow write head pole tip fabricated by sidewall processing

Also Published As

Publication number Publication date
JPS645366B2 (enrdf_load_stackoverflow) 1989-01-30

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