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GB2333056B - Multi-point bending of bars during fabrication of magnetic recording heads - Google Patents

Multi-point bending of bars during fabrication of magnetic recording heads

Info

Publication number
GB2333056B
GB2333056B GB9906723A GB9906723A GB2333056B GB 2333056 B GB2333056 B GB 2333056B GB 9906723 A GB9906723 A GB 9906723A GB 9906723 A GB9906723 A GB 9906723A GB 2333056 B GB2333056 B GB 2333056B
Authority
GB
United Kingdom
Prior art keywords
bar
actuators
lapping
magnetic recording
recording heads
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
GB9906723A
Other versions
GB2333056A (en
GB9906723D0 (en
Inventor
Shanlin X Hao
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 GB9906723D0 publication Critical patent/GB9906723D0/en
Publication of GB2333056A publication Critical patent/GB2333056A/en
Application granted granted Critical
Publication of GB2333056B publication Critical patent/GB2333056B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
    • B24B37/048—Lapping machines or devices; Accessories designed for working plane surfaces of sliders and magnetic heads of hard disc drives or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/27—Work carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Magnetic Heads (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

A device (198) for lapping a bar (10) of the type which carries a plurality of sliders used in magnetic storage systems includes first, second, and third actuators (220, 222, 224) adapted to couple to the bar (10), and impart a first, second, and third controllable force in response to a first, second, and third control signal, respectively. An arm (204) couples to the first, second, and third actuators and applies a lapping force to the bar (10) which presses the bar (10) against a lapping surface (208) thereby causing material to be removed from the bar (10). A controller (262) provides the first, second, and third control signals to the first, second, and third actuators (220, 222, 224), respectively. To impart a plurality of forces onto the bar (10). The actuators (220, 222, 224) are controlled to obtain a desired profile of the bar (10) and to obtain a desired distribution of the lapping force across the profile of the bar (10).
GB9906723A 1996-11-04 1996-12-13 Multi-point bending of bars during fabrication of magnetic recording heads Expired - Fee Related GB2333056B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3027796P 1996-11-04 1996-11-04
PCT/US1996/020088 WO1998019828A1 (en) 1996-11-04 1996-12-13 Multi-point bending of bars during fabrication of magnetic recording heads

Publications (3)

Publication Number Publication Date
GB9906723D0 GB9906723D0 (en) 1999-05-19
GB2333056A GB2333056A (en) 1999-07-14
GB2333056B true GB2333056B (en) 2001-09-05

Family

ID=21853428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9906723A Expired - Fee Related GB2333056B (en) 1996-11-04 1996-12-13 Multi-point bending of bars during fabrication of magnetic recording heads

Country Status (7)

Country Link
JP (1) JP2001505135A (en)
KR (1) KR20000053046A (en)
CN (1) CN1082867C (en)
DE (1) DE19681769T1 (en)
GB (1) GB2333056B (en)
MY (1) MY133759A (en)
WO (1) WO1998019828A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3638815B2 (en) 1999-04-21 2005-04-13 富士通株式会社 Row tool and wrapping machine using the row tool
JP6963101B2 (en) * 2017-12-19 2021-11-05 ウェスタン デジタル テクノロジーズ インコーポレーテッド In-row wrapping mount tool for magnetic recording read-write head Actuator tilt interposer

Citations (15)

* 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
US4457114A (en) * 1982-09-30 1984-07-03 Magnetic Peripherals Inc. Workpiece carrier
US4477968A (en) * 1982-09-30 1984-10-23 Magnetic Peripherals Inc. Method for using a machining sensor
US4517041A (en) * 1982-09-30 1985-05-14 Magnetic Peripherals Inc. Method for attaching a workpiece to a workpiece carrier
US4536992A (en) * 1983-11-04 1985-08-27 Magnetic Peripherals Precision lapping system
US4559743A (en) * 1982-09-30 1985-12-24 Magnetic Peripherals, Inc. Method for calibrating a machining sensor
US4675986A (en) * 1985-07-29 1987-06-30 International Business Machines Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers
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
US4912883A (en) * 1989-02-13 1990-04-03 International Business Machines Corporation Lapping control system for magnetic transducers
US4914868A (en) * 1988-09-28 1990-04-10 International Business Machines Corporation Lapping control system for magnetic transducers
US5023991A (en) * 1988-08-31 1991-06-18 Digital Equipment Corporation Electrical guide for tight tolerance machining
US5095613A (en) * 1990-06-29 1992-03-17 Digital Equipment Corporation Thin film head slider fabrication process
US5175938A (en) * 1988-08-31 1993-01-05 Digital Equipment Corporation Electrical guide for tight tolerance machining
US5494473A (en) * 1993-07-07 1996-02-27 Quantum Corporation Electrical access for electrical lapping guides
US5525091A (en) * 1994-06-24 1996-06-11 International Business Machines Corporation Multi-adjustable row transfer tool

Patent Citations (15)

* 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
US4457114A (en) * 1982-09-30 1984-07-03 Magnetic Peripherals Inc. Workpiece carrier
US4477968A (en) * 1982-09-30 1984-10-23 Magnetic Peripherals Inc. Method for using a machining sensor
US4517041A (en) * 1982-09-30 1985-05-14 Magnetic Peripherals Inc. Method for attaching a workpiece to a workpiece carrier
US4559743A (en) * 1982-09-30 1985-12-24 Magnetic Peripherals, Inc. Method for calibrating a machining sensor
US4536992A (en) * 1983-11-04 1985-08-27 Magnetic Peripherals Precision lapping system
US4675986A (en) * 1985-07-29 1987-06-30 International Business Machines Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers
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
US5023991A (en) * 1988-08-31 1991-06-18 Digital Equipment Corporation Electrical guide for tight tolerance machining
US5175938A (en) * 1988-08-31 1993-01-05 Digital Equipment Corporation Electrical guide for tight tolerance machining
US4914868A (en) * 1988-09-28 1990-04-10 International Business Machines Corporation Lapping control system for magnetic transducers
US4912883A (en) * 1989-02-13 1990-04-03 International Business Machines Corporation Lapping control system for magnetic transducers
US5095613A (en) * 1990-06-29 1992-03-17 Digital Equipment Corporation Thin film head slider fabrication process
US5494473A (en) * 1993-07-07 1996-02-27 Quantum Corporation Electrical access for electrical lapping guides
US5525091A (en) * 1994-06-24 1996-06-11 International Business Machines Corporation Multi-adjustable row transfer tool

Also Published As

Publication number Publication date
CN1234758A (en) 1999-11-10
CN1082867C (en) 2002-04-17
JP2001505135A (en) 2001-04-17
GB2333056A (en) 1999-07-14
KR20000053046A (en) 2000-08-25
DE19681769T1 (en) 1999-12-16
HK1021343A1 (en) 2000-06-09
WO1998019828A1 (en) 1998-05-14
GB9906723D0 (en) 1999-05-19
MY133759A (en) 2007-11-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031213