GB2370683B - A merged read/write head for a disk drive - Google Patents

A merged read/write head for a disk drive

Info

Publication number
GB2370683B
GB2370683B GB0109803A GB0109803A GB2370683B GB 2370683 B GB2370683 B GB 2370683B GB 0109803 A GB0109803 A GB 0109803A GB 0109803 A GB0109803 A GB 0109803A GB 2370683 B GB2370683 B GB 2370683B
Authority
GB
United Kingdom
Prior art keywords
disk drive
write head
merged read
merged
read
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 - Fee Related
Application number
GB0109803A
Other versions
GB2370683A (en
GB0109803D0 (en
Inventor
Christopher James Thompson
Maura Patricia Connolly
Declan Macken
Clifford Mark Sturt
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of GB0109803D0 publication Critical patent/GB0109803D0/en
Publication of GB2370683A publication Critical patent/GB2370683A/en
Application granted granted Critical
Publication of GB2370683B publication Critical patent/GB2370683B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/3169—Working or finishing the interfacing surface of heads, e.g. lapping of heads
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • G11B5/115—Shielding devices arranged between heads or windings
    • 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
    • G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
GB0109803A 1998-10-23 1999-10-22 A merged read/write head for a disk drive Expired - Fee Related GB2370683B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9823279.6A GB9823279D0 (en) 1998-10-23 1998-10-23 Closed edgepole design for merged magneto-resistive heads
PCT/GB1999/003492 WO2000025306A1 (en) 1998-10-23 1999-10-22 A merged read/write head for a disk drive

Publications (3)

Publication Number Publication Date
GB0109803D0 GB0109803D0 (en) 2001-06-13
GB2370683A GB2370683A (en) 2002-07-03
GB2370683B true GB2370683B (en) 2003-04-02

Family

ID=10841206

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9823279.6A Ceased GB9823279D0 (en) 1998-10-23 1998-10-23 Closed edgepole design for merged magneto-resistive heads
GB0109803A Expired - Fee Related GB2370683B (en) 1998-10-23 1999-10-22 A merged read/write head for a disk drive

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9823279.6A Ceased GB9823279D0 (en) 1998-10-23 1998-10-23 Closed edgepole design for merged magneto-resistive heads

Country Status (2)

Country Link
GB (2) GB9823279D0 (en)
WO (1) WO2000025306A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61145718A (en) * 1984-12-19 1986-07-03 Nec Corp Composite thin film magnetic head
JPS6252710A (en) * 1985-08-30 1987-03-07 Nec Corp Thin film magnetic head
JPH029011A (en) * 1988-06-28 1990-01-12 Sharp Corp Manufacture of thin film combination head
US5032945A (en) * 1989-11-07 1991-07-16 International Business Machines Corp. Magnetic thin film structures fabricated with edge closure layers
US5673163A (en) * 1992-10-20 1997-09-30 Cohen; Uri Pinched-gap magnetic recording thin film head
US5739991A (en) * 1994-02-01 1998-04-14 Sanyo Electric Co., Ltd. Composite thin film head having magnetoresistive and inductive head portions with nonmagnetic thin film interposed between core and shield portions of core layer
US5774308A (en) * 1996-04-26 1998-06-30 Fujitsu Limited Thin film inductive head and magnetic writing/reading drive including the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61145718A (en) * 1984-12-19 1986-07-03 Nec Corp Composite thin film magnetic head
JPS6252710A (en) * 1985-08-30 1987-03-07 Nec Corp Thin film magnetic head
JPH029011A (en) * 1988-06-28 1990-01-12 Sharp Corp Manufacture of thin film combination head
US5032945A (en) * 1989-11-07 1991-07-16 International Business Machines Corp. Magnetic thin film structures fabricated with edge closure layers
US5673163A (en) * 1992-10-20 1997-09-30 Cohen; Uri Pinched-gap magnetic recording thin film head
US5739991A (en) * 1994-02-01 1998-04-14 Sanyo Electric Co., Ltd. Composite thin film head having magnetoresistive and inductive head portions with nonmagnetic thin film interposed between core and shield portions of core layer
US5774308A (en) * 1996-04-26 1998-06-30 Fujitsu Limited Thin film inductive head and magnetic writing/reading drive including the same

Also Published As

Publication number Publication date
WO2000025306A1 (en) 2000-05-04
GB2370683A (en) 2002-07-03
GB9823279D0 (en) 1998-12-23
GB0109803D0 (en) 2001-06-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041022