JP2005346869A - Cpp型巨大磁気抵抗効果ヘッド - Google Patents
Cpp型巨大磁気抵抗効果ヘッド Download PDFInfo
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- JP2005346869A JP2005346869A JP2004167391A JP2004167391A JP2005346869A JP 2005346869 A JP2005346869 A JP 2005346869A JP 2004167391 A JP2004167391 A JP 2004167391A JP 2004167391 A JP2004167391 A JP 2004167391A JP 2005346869 A JP2005346869 A JP 2005346869A
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- 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
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- 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
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- 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
- G11B5/398—Specially shaped layers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
Abstract
【解決手段】下部シールド層と上部シールド層の間に、非磁性材料層を挟んで積層した固定磁性層とフリー磁性層を有する巨大磁気抵抗効果素子を備え、この巨大磁気抵抗効果素子の膜面に直交する方向に電流が流れるCPP型巨大磁気抵抗効果ヘッドにおいて、固定磁性層は、トラック幅方向よりもハイト方向に長く形成され、非磁性材料層及びフリー磁性層の上または下に位置する素子部と;非磁性材料層及びフリー磁性層よりもハイト方向奥側に位置する素子ハイト奥部と;を同一平面上に有している。この固定磁性層のトラック幅方向の寸法を、素子部よりも素子ハイト奥部で大きくした。
【選択図】 図1
Description
10 下部シールド層
10a 凹部
20 下部大面積非磁性金属膜
30 GMR素子(巨大磁気抵抗効果素子)
31 固定磁性層
32 非磁性材料層
33 フリー磁性層
40 上部大面積非磁性金属膜
50 上部シールド層
61 第1絶縁層
62 バイアス下地層
63 縦バイアス層
64 第2絶縁層
65 バックフィルギャップ層
71 上部非磁性材料層
72 上部固定磁性層
80 反強磁性層
A 素子部
B 素子ハイト奥部
α 傾斜部
θ 傾斜角
Claims (6)
- 下部シールド層と上部シールド層の間に、非磁性材料層を挟んで積層した固定磁性層とフリー磁性層を有する巨大磁気抵抗効果素子を備え、この巨大磁気抵抗効果素子の膜面に直交する方向に電流が流れるCPP型巨大磁気抵抗効果ヘッドにおいて、
前記固定磁性層は、トラック幅方向よりもハイト方向に長く形成されており、前記非磁性材料層及び前記フリー磁性層の上または下に位置する素子部と;前記非磁性材料層及び前記フリー磁性層よりもハイト方向奥側に位置する素子ハイト奥部と;を同一平面上に有し、トラック幅方向の寸法が前記素子部よりも前記素子ハイト奥部で大きいことを特徴とするCPP型巨大磁気抵抗効果ヘッド。 - 請求項1記載のCPP型巨大磁気抵抗効果ヘッドにおいて、前記素子ハイト奥部に、前記素子部から該素子ハイト奥部に向かってトラック幅方向の寸法を広げる傾斜部を備えたCPP型巨大磁気抵抗効果ヘッド。
- 請求項2記載のCPP型巨大磁気抵抗効果ヘッドにおいて、前記傾斜部は、前記素子部のトラック幅方向の側面に対して5°ないし45°の傾斜角を有しているCPP型巨大磁気抵抗効果ヘッド。
- 請求項1ないし3のいずれか一項に記載のCPP型巨大磁気抵抗効果ヘッドにおいて、前記巨大磁気抵抗効果素子のトラック幅方向の両側に接して前記フリー磁性層に縦バイアス磁界を与える一対の縦バイアス層を備え、この一対の縦バイアス層のトラック幅方向における寸法が素子部よりも素子ハイト奥部で小さいCPP型巨大磁気抵抗効果ヘッド。
- 請求項4記載のCPP型巨大磁気抵抗効果ヘッドにおいて、前記一対の縦バイアス層は、トラック幅方向において制御可能な最小寸法で素子ハイト奥部が形成されているCPP型巨大磁気抵抗効果ヘッド。
- 請求項1ないし5のいずれか一項に記載のCPP型巨大磁気抵抗効果ヘッドにおいて、前記固定磁性層は、磁歪定数が正の値をとる磁性材料により形成され、記録媒体との対向面側の端面が開放されているCPP型巨大磁気抵抗効果ヘッド。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004167391A JP4002909B2 (ja) | 2004-06-04 | 2004-06-04 | Cpp型巨大磁気抵抗効果ヘッド |
US11/141,543 US7365949B2 (en) | 2004-06-04 | 2005-05-31 | CPP giant magnetoresistive head including pinned magnetic layer that extends in the height direction |
Applications Claiming Priority (1)
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JP2004167391A JP4002909B2 (ja) | 2004-06-04 | 2004-06-04 | Cpp型巨大磁気抵抗効果ヘッド |
Publications (2)
Publication Number | Publication Date |
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JP2005346869A true JP2005346869A (ja) | 2005-12-15 |
JP4002909B2 JP4002909B2 (ja) | 2007-11-07 |
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JP2004167391A Expired - Fee Related JP4002909B2 (ja) | 2004-06-04 | 2004-06-04 | Cpp型巨大磁気抵抗効果ヘッド |
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US (1) | US7365949B2 (ja) |
JP (1) | JP4002909B2 (ja) |
Cited By (8)
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---|---|---|---|---|
US7672087B2 (en) | 2007-03-27 | 2010-03-02 | Tdk Corporation | Magnetoresistive effect element having bias layer with internal stress controlled |
US7952839B2 (en) | 2008-01-28 | 2011-05-31 | Tdk Corporation | Magnetoresistive element including an antiferromagnetic layer disposed away from a detection surface |
JP2012119053A (ja) * | 2010-11-30 | 2012-06-21 | Seagate Technology Llc | 装置および磁気素子 |
JP2014107003A (ja) * | 2012-11-28 | 2014-06-09 | Seagate Technology Llc | 空気軸受面から離間されるサイドシールドバイアシング層 |
JP2015005325A (ja) * | 2013-06-21 | 2015-01-08 | エイチジーエスティーネザーランドビーブイ | 凹型afmを有する狭リードギャップヘッド |
US9230574B2 (en) | 2008-12-04 | 2016-01-05 | HGST Netherlands B.V. | Magnetoresistive head with a CPP structure having suppressed side reading |
JP2016071919A (ja) * | 2014-10-01 | 2016-05-09 | 株式会社東芝 | 磁気ヘッド、磁気ヘッドアセンブリ、磁気記録再生装置、および磁気ヘッドの製造方法 |
JP2016071922A (ja) * | 2014-10-01 | 2016-05-09 | 株式会社東芝 | 磁気抵抗効果素子、磁気抵抗効果素子の製造方法、磁気ヘッド、および磁気記録再生装置 |
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JP4826097B2 (ja) * | 2005-02-23 | 2011-11-30 | Tdk株式会社 | 磁気検出素子及びその製造方法 |
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JP2008084373A (ja) * | 2006-09-26 | 2008-04-10 | Tdk Corp | 薄膜磁気ヘッドの製造方法及び薄膜磁気ヘッド |
US20080088985A1 (en) * | 2006-10-16 | 2008-04-17 | Driskill-Smith Alexander Adria | Magnetic head having CPP sensor with partially milled stripe height |
US7580230B2 (en) * | 2006-10-24 | 2009-08-25 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetoresistive sensor having shape enhanced pinning, a flux guide structure and damage free virtual edges |
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US9007727B2 (en) * | 2007-07-17 | 2015-04-14 | HGST Netherlands B.V. | Magnetic head having CPP sensor with improved stabilization of the magnetization of the pinned magnetic layer |
US8031442B2 (en) * | 2007-08-01 | 2011-10-04 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head having CPP sensor with improved biasing for free magnetic layer |
US20090161269A1 (en) * | 2007-12-21 | 2009-06-25 | James Mac Freitag | Magnetoresistive sensor having an enhanced free layer stabilization mechanism |
US8054587B2 (en) * | 2009-01-09 | 2011-11-08 | Tdk Corporation | Magnetoresistive effect element, thin-film magnetic head with magnetoresistive effect read head element, and magnetic disk drive apparatus with thin-film magnetic head |
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US8907666B2 (en) | 2011-09-30 | 2014-12-09 | HGST Netherlands B.V. | Magnetic bias structure for magnetoresistive sensor having a scissor structure |
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US9269382B1 (en) * | 2012-06-29 | 2016-02-23 | Western Digital (Fremont), Llc | Method and system for providing a read transducer having improved pinning of the pinned layer at higher recording densities |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7672087B2 (en) | 2007-03-27 | 2010-03-02 | Tdk Corporation | Magnetoresistive effect element having bias layer with internal stress controlled |
US7952839B2 (en) | 2008-01-28 | 2011-05-31 | Tdk Corporation | Magnetoresistive element including an antiferromagnetic layer disposed away from a detection surface |
US9230574B2 (en) | 2008-12-04 | 2016-01-05 | HGST Netherlands B.V. | Magnetoresistive head with a CPP structure having suppressed side reading |
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JP2016071922A (ja) * | 2014-10-01 | 2016-05-09 | 株式会社東芝 | 磁気抵抗効果素子、磁気抵抗効果素子の製造方法、磁気ヘッド、および磁気記録再生装置 |
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Publication number | Publication date |
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US20050270703A1 (en) | 2005-12-08 |
US7365949B2 (en) | 2008-04-29 |
JP4002909B2 (ja) | 2007-11-07 |
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