GB2333056A - Multi-point bending of bars during fabrication of magnetic recording heads - Google Patents
Multi-point bending of bars during fabrication of magnetic recording headsInfo
- Publication number
- GB2333056A GB2333056A GB9906723A GB9906723A GB2333056A GB 2333056 A GB2333056 A GB 2333056A GB 9906723 A GB9906723 A GB 9906723A GB 9906723 A GB9906723 A GB 9906723A GB 2333056 A GB2333056 A GB 2333056A
- 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.)
- Granted
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)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Magnetic Heads (AREA)
- Supporting Of Heads In Record-Carrier Devices (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).
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 true GB2333056A (en) | 1999-07-14 |
GB2333056B 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 (8)
Country | Link |
---|---|
JP (1) | JP2001505135A (en) |
KR (1) | KR20000053046A (en) |
CN (1) | CN1082867C (en) |
DE (1) | DE19681769T1 (en) |
GB (1) | GB2333056B (en) |
HK (1) | HK1021343A1 (en) |
MY (1) | MY133759A (en) |
WO (1) | WO1998019828A1 (en) |
Families Citing this family (2)
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 (12)
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 |
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5525091A (en) * | 1994-06-24 | 1996-06-11 | International Business Machines Corporation | Multi-adjustable row transfer tool |
-
1996
- 1996-12-13 JP JP52133598A patent/JP2001505135A/en not_active Ceased
- 1996-12-13 GB GB9906723A patent/GB2333056B/en not_active Expired - Fee Related
- 1996-12-13 DE DE19681769T patent/DE19681769T1/en not_active Withdrawn
- 1996-12-13 KR KR1019990703948A patent/KR20000053046A/en active IP Right Grant
- 1996-12-13 CN CN96180492A patent/CN1082867C/en not_active Expired - Fee Related
- 1996-12-13 WO PCT/US1996/020088 patent/WO1998019828A1/en active IP Right Grant
-
1997
- 1997-10-01 MY MYPI97004577A patent/MY133759A/en unknown
-
2000
- 2000-01-12 HK HK00100188A patent/HK1021343A1/en not_active IP Right Cessation
Patent Citations (12)
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 |
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 |
Also Published As
Publication number | Publication date |
---|---|
JP2001505135A (en) | 2001-04-17 |
GB9906723D0 (en) | 1999-05-19 |
MY133759A (en) | 2007-11-30 |
GB2333056B (en) | 2001-09-05 |
CN1082867C (en) | 2002-04-17 |
WO1998019828A1 (en) | 1998-05-14 |
DE19681769T1 (en) | 1999-12-16 |
HK1021343A1 (en) | 2000-06-09 |
CN1234758A (en) | 1999-11-10 |
KR20000053046A (en) | 2000-08-25 |
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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 |