JP2006209818A - 磁気ヘッド - Google Patents
磁気ヘッド Download PDFInfo
- Publication number
- JP2006209818A JP2006209818A JP2005016732A JP2005016732A JP2006209818A JP 2006209818 A JP2006209818 A JP 2006209818A JP 2005016732 A JP2005016732 A JP 2005016732A JP 2005016732 A JP2005016732 A JP 2005016732A JP 2006209818 A JP2006209818 A JP 2006209818A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- layer
- auxiliary
- auxiliary magnetic
- main
- 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.)
- Pending
Links
Images
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
- G11B5/3109—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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Heads (AREA)
Abstract
【解決手段】 補助磁性層29,30と非磁性層31との積層構造からなる補助磁性部24を設け、第1補助磁性層29を主磁極層20に直接接合させている。これにより各補助磁性層29,30に、アンチフェロカップリング(Anti Ferro Coupling)によってトラック幅方向に強い誘導磁気異方性を付与でき、さらに前記第1補助磁性層29と前記主磁極層30との強磁性結合によって、前記主磁極層20の磁化を従来に比べて、適切にトラック幅方向に揃えることができ、前記主磁極層20の残留磁化を低減させることが出来る。これによって磁気記録効率の向上を適切に図ることが出来る。
【選択図】 図2
Description
前記第1の磁性層の、前記第2の磁性層側に向く内側面、あるいは、前記内側面と反対側の外側面のうち、少なくともどちらか一方の面には、複数の補助磁性層が膜厚方向に対向し、各補助磁性層間に非磁性層が介在してなる補助磁性部が設けられ、前記補助磁性層のうち、前記第1の磁性層に最も近い位置に設けられた補助磁性層が前記第1の磁性層に直接接合されていることを特徴とするものである。
24 補助磁性部
27 リターンパス層
29 第1補助磁性層
30 第2補助磁性層
31 非磁性層
41、42、43 磁区
50、51 反強磁性層
Claims (5)
- 記録媒体との対向面で、膜厚方向に、所定の間隔を空けて対向する第1の磁性層と、前記第1の磁性層よりも前記対向面でのトラック幅方向への寸法が大きい第2の磁性層と、前記第1の磁性層と第2の磁性層に記録磁界を与えるための磁界発生手段と、を有し、
前記第1の磁性層の、前記第2の磁性層側に向く内側面、あるいは、前記内側面と反対側の外側面のうち、少なくともどちらか一方の面には、複数の補助磁性層が膜厚方向に対向し、各補助磁性層間に非磁性層が介在してなる補助磁性部が設けられ、前記補助磁性層のうち、前記第1の磁性層に最も近い位置に設けられた補助磁性層が前記第1の磁性層に直接接合されていることを特徴とする磁気ヘッド。 - 前記補助磁性部の前記対向面側に向く前端面は、前記対向面よりも、前記第1の磁性層の後端面方向に後退している請求項1記載の磁気ヘッド。
- 前記補助磁性部には、前記第1の磁性層から最も離れた位置にある補助磁性層の前記非磁性層との接合面と反対側の面に反強磁性層が接合されている請求項1または2に記載の磁気ヘッド。
- 前記主磁極層のトラック幅方向における両側端面は、前記補助磁性部のトラック幅方向における両側端面よりもトラック幅方向の内側に位置するか、あるいは前記主磁極層の前記両側端面と前記補助磁性部の前記両側端面とが膜厚方向にて一致している請求項1ないし3のいずれかに記載の磁気ヘッド。
- 前記主磁極層の後端面は、前記補助磁性部の後端面よりも前記対向面寄りに位置するか、前記主磁極層の前記後端面と前記補助磁性部の前記後端面とが膜厚方向にて一致している請求項1ないし4のいずれかに記載の磁気ヘッド。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005016732A JP2006209818A (ja) | 2005-01-25 | 2005-01-25 | 磁気ヘッド |
US11/336,250 US20060164756A1 (en) | 2005-01-25 | 2006-01-20 | Perpendicular magnetic recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005016732A JP2006209818A (ja) | 2005-01-25 | 2005-01-25 | 磁気ヘッド |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2006209818A true JP2006209818A (ja) | 2006-08-10 |
Family
ID=36696498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005016732A Pending JP2006209818A (ja) | 2005-01-25 | 2005-01-25 | 磁気ヘッド |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060164756A1 (ja) |
JP (1) | JP2006209818A (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008120305A1 (ja) * | 2007-03-28 | 2008-10-09 | Fujitsu Limited | 磁気記録装置および磁気記録ヘッド |
US8064164B2 (en) | 2007-06-01 | 2011-11-22 | Tdk Corporation | Perpendicular magnetic recording head |
JP2013214348A (ja) * | 2012-04-02 | 2013-10-17 | Seagate Technology Llc | データ書込機 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007220230A (ja) * | 2006-02-17 | 2007-08-30 | Alps Electric Co Ltd | 垂直磁気記録ヘッド |
US7843667B2 (en) * | 2007-05-21 | 2010-11-30 | Tdk Corporation | Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device |
US7889456B2 (en) * | 2007-11-13 | 2011-02-15 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording write head with flux shaping layers on the write pole and magnetic recording system incorporating the write head |
NL2005511C2 (en) | 2010-05-17 | 2011-11-21 | Dti Group Bv | Transmissie voor een elektrische of hybride aandrijving, |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6721131B2 (en) * | 2001-03-15 | 2004-04-13 | Seagate Technology Llc | Composite write pole for a magnetic recording head |
US6791796B2 (en) * | 2002-05-28 | 2004-09-14 | Seagate Technology Llc | Perpendicular writer with laminated main pole |
US7057837B2 (en) * | 2002-10-17 | 2006-06-06 | Hitachi Global Storage Technologies Netherlands B.V. | Flux closed single pole perpendicular head for ultra narrow track |
JP3965358B2 (ja) * | 2002-12-20 | 2007-08-29 | 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 |
JP2005038535A (ja) * | 2003-07-16 | 2005-02-10 | Tdk Corp | 垂直磁気記録素子、磁気ヘッド、磁気ヘッド装置及び磁気記録再生装置 |
US7656611B2 (en) * | 2004-08-27 | 2010-02-02 | Hitachi Global Storage Technologies Netherlands B.V, | Laminated high moment magnetic films antiferromagnetic coupling as write pole of perpendicular magnetic recording head |
-
2005
- 2005-01-25 JP JP2005016732A patent/JP2006209818A/ja active Pending
-
2006
- 2006-01-20 US US11/336,250 patent/US20060164756A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008120305A1 (ja) * | 2007-03-28 | 2008-10-09 | Fujitsu Limited | 磁気記録装置および磁気記録ヘッド |
US8064164B2 (en) | 2007-06-01 | 2011-11-22 | Tdk Corporation | Perpendicular magnetic recording head |
JP2013214348A (ja) * | 2012-04-02 | 2013-10-17 | Seagate Technology Llc | データ書込機 |
US8837085B2 (en) | 2012-04-02 | 2014-09-16 | Seagate Technology Llc | Write yoke with stabilizing layer |
Also Published As
Publication number | Publication date |
---|---|
US20060164756A1 (en) | 2006-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7554765B2 (en) | Magnetic head for perpendicular recording with suppressed side writing and erasing | |
US7643246B2 (en) | Perpendicular magnetic recording head having a stepped portion and method of manufacturing the same | |
JP5607681B2 (ja) | 主磁極とシールドを備えた垂直磁気記録用磁気ヘッド | |
JP2010092579A (ja) | 磁気再生ヘッドおよびその形成方法 | |
US7889457B2 (en) | Perpendicular magnetic recording head device capable of increasing magnetic field gradient to exhibit excellent recording performance while maintaining magnetic field intensity | |
JP2005122831A (ja) | 磁気ヘッド | |
JP2004086961A (ja) | 磁気ヘッド及び磁気記録装置 | |
JP2006209818A (ja) | 磁気ヘッド | |
US7990654B2 (en) | Perpendicular magnetic recording head | |
US7848056B2 (en) | Thin film magnetic head having thermal expansion layer for suppressing thermal protrusion | |
US7821745B2 (en) | Thin-film magnetic head in which perpendicular magnetic record head overlaps on reproducing head | |
JP3944120B2 (ja) | 磁気ヘッド | |
JP2007080904A (ja) | 磁気抵抗効果素子及びその製造方法 | |
US8072707B2 (en) | Perpendicular magnetic recording head with divided auxiliary yoke layer | |
JP2007052886A (ja) | 垂直磁気記録ヘッド | |
US20080225441A1 (en) | Magnetic head | |
US7733604B2 (en) | Perpendicular magnetic recording head with return pass layer | |
JP2004348928A (ja) | 垂直記録磁気ヘッド | |
US8064164B2 (en) | Perpendicular magnetic recording head | |
JP2008287790A (ja) | 垂直磁気記録ヘッド | |
JP2004127421A (ja) | 薄膜磁気ヘッド、磁気ヘッド装置及び磁気記録再生装置 | |
JP3631449B2 (ja) | 薄膜磁気ヘッド | |
JP4600382B2 (ja) | 垂直磁気記録ヘッド装置 | |
JP2008226319A (ja) | 垂直磁気記録ヘッド装置 | |
JP2008159204A (ja) | 垂直磁気記録ヘッド装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070405 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070417 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070606 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20080108 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20080111 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20080111 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080311 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080708 |