SG83178A1 - Method and apparatus for testing composite type magnetic head - Google Patents
Method and apparatus for testing composite type magnetic headInfo
- Publication number
- SG83178A1 SG83178A1 SG200000087A SG200000087A SG83178A1 SG 83178 A1 SG83178 A1 SG 83178A1 SG 200000087 A SG200000087 A SG 200000087A SG 200000087 A SG200000087 A SG 200000087A SG 83178 A1 SG83178 A1 SG 83178A1
- Authority
- SG
- Singapore
- Prior art keywords
- magnetic head
- type magnetic
- composite type
- testing composite
- testing
- Prior art date
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
- G11B5/3166—Testing or indicating in relation thereto, e.g. before the fabrication is completed
-
- 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
- G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
- G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02013599A JP3603636B2 (ja) | 1999-01-28 | 1999-01-28 | 複合型磁気ヘッドの検査方法及び装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG83178A1 true SG83178A1 (en) | 2001-09-18 |
Family
ID=12018702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200000087A SG83178A1 (en) | 1999-01-28 | 2000-01-07 | Method and apparatus for testing composite type magnetic head |
Country Status (5)
Country | Link |
---|---|
US (1) | US6433540B1 (zh) |
JP (1) | JP3603636B2 (zh) |
CN (1) | CN1188838C (zh) |
HK (1) | HK1028922A1 (zh) |
SG (1) | SG83178A1 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6590388B2 (en) * | 2000-08-04 | 2003-07-08 | Seagate Technology Llc | Non-destructive defective magneto-resistive head detection utilizing a micro-track |
JP2004199796A (ja) * | 2002-12-19 | 2004-07-15 | Shinka Jitsugyo Kk | 薄膜磁気ヘッドの特性測定用プローブピンの接続方法及び薄膜磁気ヘッドの特性測定方法 |
US7138797B2 (en) * | 2004-09-30 | 2006-11-21 | Hitachi Global Storage Technologies Netherlands, B.V. | Reverse magnetic reset to screen for weakly pinned heads |
US7113355B2 (en) * | 2004-12-03 | 2006-09-26 | Matsushita Electric Industrial Co., Ltd. | System and method for detecting head instability |
US7839605B2 (en) * | 2005-11-13 | 2010-11-23 | Hitachi Global Storage Technologies Netherlands B.V. | Electrical signal-processing device integrating a flux sensor with a flux generator in a magnetic circuit |
JP2007317303A (ja) * | 2006-05-25 | 2007-12-06 | Fujitsu Ltd | 磁気抵抗効果ヘッドの検査方法および検査装置 |
US8120353B2 (en) * | 2008-04-28 | 2012-02-21 | International Business Machines Corporation | Methods for detecting damage to magnetoresistive sensors |
US7940042B2 (en) * | 2009-01-07 | 2011-05-10 | Tdk Corporation | Method and apparatus for testing magnetoresistive effect element |
US10311902B2 (en) * | 2014-09-30 | 2019-06-04 | International Business Machines Corporation | Measuring and analyzing electrical resistance in tunneling magnetoresist sensors to identify damaged sensors |
JP7265427B2 (ja) * | 2019-06-26 | 2023-04-26 | 株式会社東芝 | 磁気ヘッドの評価方法及び磁気ヘッドの評価装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479098A (en) * | 1993-03-15 | 1995-12-26 | Trace Mountain Products, Inc. | Loop-back circuit for testing a magnetic recording system with simultaneous read and write functions |
US5721488A (en) * | 1995-01-06 | 1998-02-24 | Tdk Corporation | Method and apparatus for testing integrated magnetic head assembly |
US6111406A (en) * | 1997-08-28 | 2000-08-29 | International Business Machines Corporation | System and method for testing a write head in a combined magnetic head using an associated read sensor in the combined head |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5134366A (en) * | 1991-06-21 | 1992-07-28 | Digital Equipment Corporation | Magnetic head testing apparatus for detecting occurrences of popcorn noise amid externally generated noise |
JP2692515B2 (ja) | 1992-11-05 | 1997-12-17 | ティーディーケイ株式会社 | 磁気抵抗効果ヘッドの検査方法及び装置 |
US5668477A (en) * | 1995-02-16 | 1997-09-16 | Read-Rite Corporation | Noise detecting apparatus for magnetic heads |
US5589777A (en) * | 1995-06-21 | 1996-12-31 | Hewlett-Packard Company | Circuit and method for testing a disk drive head assembly without probing |
JP2773714B2 (ja) * | 1995-10-26 | 1998-07-09 | ティーディーケイ株式会社 | 磁気抵抗効果素子を有する磁気ヘッドの検査方法及び装置 |
US5987038A (en) | 1996-12-23 | 1999-11-16 | Texas Instruments Incorporated | Sync detect circuit |
-
1999
- 1999-01-28 JP JP02013599A patent/JP3603636B2/ja not_active Expired - Fee Related
-
2000
- 2000-01-07 SG SG200000087A patent/SG83178A1/en unknown
- 2000-01-21 US US09/488,559 patent/US6433540B1/en not_active Expired - Fee Related
- 2000-01-28 CN CNB001011774A patent/CN1188838C/zh not_active Expired - Fee Related
- 2000-12-21 HK HK00108306A patent/HK1028922A1/xx not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479098A (en) * | 1993-03-15 | 1995-12-26 | Trace Mountain Products, Inc. | Loop-back circuit for testing a magnetic recording system with simultaneous read and write functions |
US5721488A (en) * | 1995-01-06 | 1998-02-24 | Tdk Corporation | Method and apparatus for testing integrated magnetic head assembly |
US6111406A (en) * | 1997-08-28 | 2000-08-29 | International Business Machines Corporation | System and method for testing a write head in a combined magnetic head using an associated read sensor in the combined head |
Also Published As
Publication number | Publication date |
---|---|
CN1262505A (zh) | 2000-08-09 |
HK1028922A1 (en) | 2001-03-09 |
CN1188838C (zh) | 2005-02-09 |
US6433540B1 (en) | 2002-08-13 |
JP2000222713A (ja) | 2000-08-11 |
JP3603636B2 (ja) | 2004-12-22 |
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