TW513709B - Magnetic head, magnetic recording and reproducing apparatus, method for reproducing and recording magnetic recording information - Google Patents
Magnetic head, magnetic recording and reproducing apparatus, method for reproducing and recording magnetic recording information Download PDFInfo
- Publication number
- TW513709B TW513709B TW090100618A TW90100618A TW513709B TW 513709 B TW513709 B TW 513709B TW 090100618 A TW090100618 A TW 090100618A TW 90100618 A TW90100618 A TW 90100618A TW 513709 B TW513709 B TW 513709B
- Authority
- TW
- Taiwan
- Prior art keywords
- magnetic
- magnetic flux
- flux
- recording
- light
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 410
- 238000000034 method Methods 0.000 title claims description 9
- 230000004907 flux Effects 0.000 claims abstract description 75
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims description 10
- 230000005294 ferromagnetic effect Effects 0.000 claims description 7
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 7
- GBZQODYDRJQFHG-UHFFFAOYSA-N manganese rhodium Chemical compound [Mn].[Rh] GBZQODYDRJQFHG-UHFFFAOYSA-N 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 6
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000005307 ferromagnetism Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000005303 antiferromagnetism Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 83
- 230000035699 permeability Effects 0.000 description 34
- 229910052751 metal Inorganic materials 0.000 description 24
- 239000002184 metal Substances 0.000 description 24
- 239000010410 layer Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 15
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 14
- 238000009413 insulation Methods 0.000 description 9
- 230000005290 antiferromagnetic effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000007261 regionalization Effects 0.000 description 4
- 229910052703 rhodium Inorganic materials 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- FQMNUIZEFUVPNU-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co] FQMNUIZEFUVPNU-UHFFFAOYSA-N 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KRSZDIGCQWBYNU-UHFFFAOYSA-N [Mn].[Ru] Chemical compound [Mn].[Ru] KRSZDIGCQWBYNU-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001269524 Dura Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- PRPNWWVBZXJBKY-UHFFFAOYSA-N antimony iron Chemical compound [Fe].[Sb] PRPNWWVBZXJBKY-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- SHMWNGFNWYELHA-UHFFFAOYSA-N iridium manganese Chemical compound [Mn].[Ir] SHMWNGFNWYELHA-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- GZUCQIMKDHLSEH-UHFFFAOYSA-N manganese silver Chemical compound [Mn][Ag][Ag] GZUCQIMKDHLSEH-UHFFFAOYSA-N 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3909—Arrangements using a magnetic tunnel junction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- 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
-
- 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
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
-
- 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
-
- 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
- G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
-
- 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
- G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
- G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
-
- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
-
- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
- G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
- G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
- G11B13/045—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties combined recording by magnetic and optic means
-
- 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
-
- 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
-
- 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
- G11B2005/0008—Magnetic conditionning of heads, e.g. biasing
-
- 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
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
-
- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
- G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000228874A JP3839227B2 (ja) | 2000-07-28 | 2000-07-28 | 磁気ヘッド、磁気記録再生装置、磁気記録情報の再生方法及び磁気記録方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW513709B true TW513709B (en) | 2002-12-11 |
Family
ID=18722088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW090100618A TW513709B (en) | 2000-07-28 | 2001-01-11 | Magnetic head, magnetic recording and reproducing apparatus, method for reproducing and recording magnetic recording information |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US6728080B2 (https=) |
| EP (1) | EP1176585B1 (https=) |
| JP (1) | JP3839227B2 (https=) |
| KR (1) | KR100786929B1 (https=) |
| CN (1) | CN1223997C (https=) |
| TW (1) | TW513709B (https=) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3839227B2 (ja) | 2000-07-28 | 2006-11-01 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ヘッド、磁気記録再生装置、磁気記録情報の再生方法及び磁気記録方法 |
| US7532434B1 (en) * | 2001-09-06 | 2009-05-12 | Schreck Erhard T | Recessed write pole for perpendicular recording |
| US6888705B2 (en) * | 2002-01-18 | 2005-05-03 | Hitachi Global Storage Technologies Netherlands B.V. | High linear density tunnel junction flux guide read head with in-stack longitudinal bias stack (LBS) |
| US7170721B2 (en) | 2002-06-25 | 2007-01-30 | Quantum Corporation | Method of producing flux guides in magnetic recording heads |
| JP4144867B2 (ja) | 2002-08-09 | 2008-09-03 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ディスク装置 |
| JP4016857B2 (ja) * | 2002-10-18 | 2007-12-05 | ヤマハ株式会社 | 磁気センサ及びその製造方法 |
| JP3835447B2 (ja) * | 2002-10-23 | 2006-10-18 | ヤマハ株式会社 | 磁気センサ、同磁気センサの製造方法及び同製造方法に適したマグネットアレイ |
| US7271981B2 (en) * | 2003-11-20 | 2007-09-18 | Seagate Technology Llc | Ultrafast pulse field source utilizing optically induced magnetic transformation |
| US7290325B2 (en) | 2004-08-13 | 2007-11-06 | Quantum Corporation | Methods of manufacturing magnetic heads with reference and monitoring devices |
| US7751154B2 (en) | 2005-05-19 | 2010-07-06 | Quantum Corporation | Magnetic recording heads with bearing surface protections and methods of manufacture |
| US7869309B2 (en) * | 2005-08-11 | 2011-01-11 | Seagate Technology Llc | Dual wire integrated WAMR/HAMR writing head |
| US7944780B2 (en) | 2006-12-07 | 2011-05-17 | Konica Minolta Opto, Inc. | Magnetic recording device and magnetic recording head drive mechanism having a magnetic applying section of a specific length |
| JP4539672B2 (ja) * | 2007-03-27 | 2010-09-08 | Ｔｄｋ株式会社 | 熱アシスト磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置 |
| US8270257B2 (en) * | 2008-01-31 | 2012-09-18 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted recording systems with low loss light redirection structure |
| US8406090B2 (en) * | 2008-03-04 | 2013-03-26 | HGST Netherlands B.V. | Laser power sensor for thermally assisted magnetic recording |
| US9245562B1 (en) | 2015-03-30 | 2016-01-26 | Western Digital (Fremont), Llc | Magnetic recording writer with a composite main pole |
| JP6390728B2 (ja) * | 2017-02-22 | 2018-09-19 | Tdk株式会社 | 磁気センサとその製造方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6437702A (en) * | 1987-07-31 | 1989-02-08 | Matsushita Electric Industrial Co Ltd | Magnetic head |
| JPH01224910A (ja) * | 1988-03-03 | 1989-09-07 | Fujitsu Ltd | 薄膜磁気ヘッド |
| US5385637A (en) * | 1992-12-07 | 1995-01-31 | Read-Rite Corporation | Stabilizing domains in inductive thin film heads |
| JPH06267034A (ja) * | 1993-03-17 | 1994-09-22 | Fujitsu Ltd | 磁気抵抗効果型薄膜ヘッド |
| US5995339A (en) * | 1993-03-18 | 1999-11-30 | Fujitsu Limited | Magnetoresistive head with a front flux guide and an embedded MR element |
| JPH07134804A (ja) * | 1993-09-17 | 1995-05-23 | Fujitsu Ltd | 記録再生装置及び記録再生方法 |
| US6118611A (en) * | 1993-12-14 | 2000-09-12 | Fujitsu Limited | Signal reproducing circuit adapted to head utilizing magneto-resistive effect |
| US5930084A (en) * | 1996-06-17 | 1999-07-27 | International Business Machines Corporation | Stabilized MR sensor and flux guide joined by contiguous junction |
| US5856891A (en) * | 1997-01-22 | 1999-01-05 | Vtc Inc. | MR resistive-biasing scheme providing low noise high common-mode rejection and high supply rejection |
| JP2001507806A (ja) * | 1997-10-29 | 2001-06-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | スピン−トンネル接合から成る磁界センサー |
| US5930087A (en) * | 1997-11-20 | 1999-07-27 | Hewlett-Packard Company | Robust recording head for near-contact operation |
| WO1999053494A1 (en) * | 1998-04-09 | 1999-10-21 | Seagate Technology Llc | Storage disk comprising depressions and/or raised features |
| JP3180785B2 (ja) * | 1998-11-27 | 2001-06-25 | 日本電気株式会社 | ヨーク型磁気抵抗効果ヘッド、ヨーク型磁気抵抗効果複合薄膜ヘッドおよび磁気記憶装置 |
| JP3839227B2 (ja) * | 2000-07-28 | 2006-11-01 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ヘッド、磁気記録再生装置、磁気記録情報の再生方法及び磁気記録方法 |
-
2000
- 2000-07-28 JP JP2000228874A patent/JP3839227B2/ja not_active Expired - Fee Related
-
2001
- 2001-01-11 TW TW090100618A patent/TW513709B/zh not_active IP Right Cessation
- 2001-03-16 US US09/808,992 patent/US6728080B2/en not_active Expired - Fee Related
- 2001-03-19 KR KR1020010014019A patent/KR100786929B1/ko not_active Expired - Fee Related
- 2001-03-20 US US09/811,567 patent/US6690526B2/en not_active Expired - Fee Related
- 2001-03-20 CN CNB011118156A patent/CN1223997C/zh not_active Expired - Fee Related
- 2001-03-20 EP EP01106395A patent/EP1176585B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1176585B1 (en) | 2011-10-05 |
| JP3839227B2 (ja) | 2006-11-01 |
| EP1176585A3 (en) | 2007-03-21 |
| CN1336635A (zh) | 2002-02-20 |
| US20020015251A1 (en) | 2002-02-07 |
| US6728080B2 (en) | 2004-04-27 |
| US6690526B2 (en) | 2004-02-10 |
| KR20020010447A (ko) | 2002-02-04 |
| JP2002050012A (ja) | 2002-02-15 |
| KR100786929B1 (ko) | 2007-12-17 |
| US20020012205A1 (en) | 2002-01-31 |
| EP1176585A2 (en) | 2002-01-30 |
| CN1223997C (zh) | 2005-10-19 |
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