JP2007026591A - 薄膜磁気ヘッド - Google Patents
薄膜磁気ヘッド Download PDFInfo
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- JP2007026591A JP2007026591A JP2005210073A JP2005210073A JP2007026591A JP 2007026591 A JP2007026591 A JP 2007026591A JP 2005210073 A JP2005210073 A JP 2005210073A JP 2005210073 A JP2005210073 A JP 2005210073A JP 2007026591 A JP2007026591 A JP 2007026591A
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- Prior art keywords
- layer
- heating element
- nicu
- conductor layer
- magnetic head
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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
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
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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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
- G11B5/6011—Control of flying height
- G11B5/6064—Control of flying height using air pressure
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
【課題】特に、発熱体のエレクトロマイグレーションの発生を抑制し、さらに、前記発熱体の温度依存性を小さくすることが可能な薄膜磁気ヘッドを提供することを目的としている。
【解決手段】発熱体20を発熱導体層21と、高融点材料層22,23との積層構造にする。これにより前記発熱導体層21のエレクトロマイグレーションを抑制できる。また発熱導体層21を例えばCuNiで形成し、高融点材料層22,23をRuで形成すると、CuNiとRuは、抵抗変化率の温度依存性が逆の傾向であるため、前記発熱体20全体の抵抗変化率の温度依存性を適切に小さくすることができる。
【選択図】図5
Description
再生ヘッド素子および記録用ヘッド素子の少なくとも一方と、前記素子の記録媒体との対向面を記録媒体側へ突出させるための発熱体と、を有し、
前記発熱体は、発熱導体層と、前記発熱導体層の少なくとも一部に重ねて形成された前記発熱導体層よりも高融点である高融点材料層と、を有して形成されていることを特徴とするものである。
7 下部コア層
8 磁気ギャップ層
9 上部コア層
11 第1コイル層
13 第2コイル層
20 発熱体
21 発熱導体層
22〜24 高融点材料層
E1〜E6 電極パッド層
Claims (6)
- 再生ヘッド素子および記録用ヘッド素子の少なくとも一方と、前記素子の記録媒体との
対向面を記録媒体側へ突出させるための発熱体と、を有し、
前記発熱体は、発熱導体層と、前記発熱導体層の少なくとも一部に重ねて形成された前記発熱導体層よりも高融点である高融点材料層と、を有して形成されていることを特徴とする薄膜磁気ヘッド。 - 前記高融点材料層は、前記発熱導体層の下面及び/又は上面に設けられる請求項1記載の薄膜磁気ヘッド。
- 前記高融点材料層は、白金族元素(Ru、Rh、Pd、Os、Ir、Pt)、Ta、Ti、Cr、Nb、Moのうち少なくとも1種以上の元素から形成される請求項1または2に記載の薄膜磁気ヘッド。
- 前記発熱導体層は、NiCu、CuMn、NiFe、W、NiCr、CrCuのいずれかにより形成される請求項1ないし3のいずれかに記載の薄膜磁気ヘッド。
- 前記高融点材料層は、抵抗変化率の温度依存性が、前記発熱導体層の前記抵抗変化率の温度依存性に対して逆の傾向を示す材料で形成される請求項1または2に記載の薄膜磁気ヘッド。
- 前記高融点材料層は、白金族元素で形成され、前記発熱導体層は、CuNi、CuMn、NiFe、W、NiCr、CrCuのいずれかにより形成される請求項5記載の薄膜磁気ヘッド。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005210073A JP2007026591A (ja) | 2005-07-20 | 2005-07-20 | 薄膜磁気ヘッド |
US11/486,797 US7595960B2 (en) | 2005-07-20 | 2006-07-14 | Thin film magnetic head having heating element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005210073A JP2007026591A (ja) | 2005-07-20 | 2005-07-20 | 薄膜磁気ヘッド |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2007026591A true JP2007026591A (ja) | 2007-02-01 |
Family
ID=37678817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005210073A Pending JP2007026591A (ja) | 2005-07-20 | 2005-07-20 | 薄膜磁気ヘッド |
Country Status (2)
Country | Link |
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US (1) | US7595960B2 (ja) |
JP (1) | JP2007026591A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011196714A (ja) * | 2010-03-17 | 2011-10-06 | Yamatake Corp | 発熱量算出式作成システム、発熱量算出式の作成方法、発熱量測定システム、及び発熱量の測定方法 |
JP2011203050A (ja) * | 2010-03-25 | 2011-10-13 | Yamatake Corp | 発熱量算出式作成システム、発熱量算出式の作成方法、発熱量測定システム、及び発熱量の測定方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005056509A (ja) * | 2003-08-05 | 2005-03-03 | Tdk Corp | 薄膜磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置 |
JP2007335062A (ja) * | 2006-05-19 | 2007-12-27 | Alps Electric Co Ltd | 薄膜磁気ヘッド |
JP2008276837A (ja) * | 2007-04-26 | 2008-11-13 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ヘッドスライダ |
US8054583B2 (en) * | 2008-06-30 | 2011-11-08 | Headway Technologies, Inc. | Ta/W film as heating device for dynamic fly height adjustment |
US7969685B2 (en) * | 2008-08-13 | 2011-06-28 | Sae Magnetics (Hk) Ltd. | ABS design for dynamic flying height (DFH) applications |
US8523312B2 (en) | 2010-11-08 | 2013-09-03 | Seagate Technology Llc | Detection system using heating element temperature oscillations |
CN103155037B (zh) | 2010-11-17 | 2016-06-08 | 希捷科技有限公司 | 使用电阻传感器的多级温度系数的凹凸体和磁头-介质接触检测 |
US8681590B2 (en) * | 2010-11-24 | 2014-03-25 | Seagate Technology Llc | Apparatus for increasing data rates in a magnetic head |
US8634167B2 (en) | 2011-05-27 | 2014-01-21 | HGST Netherlands B.V. | Magnetic head with self compensating dual thermal fly height control |
US8749920B1 (en) * | 2011-12-16 | 2014-06-10 | Western Digital (Fremont), Llc | Magnetic recording head with dynamic fly height heating and having thermally controlled pole tip protrusion to control and protect reader element |
US8670214B1 (en) | 2011-12-20 | 2014-03-11 | Western Digital (Fremont), Llc | Method and system for providing enhanced thermal expansion for hard disk drives |
US9664572B2 (en) * | 2012-11-28 | 2017-05-30 | Seagate Technology Llc | Thin films having large temperature coefficient of resistance and methods of fabricating same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10261248A (ja) | 1997-03-18 | 1998-09-29 | Canon Inc | 記録媒体、及び記録再生装置 |
JP3636133B2 (ja) | 2001-11-29 | 2005-04-06 | Tdk株式会社 | 薄膜磁気ヘッド、該薄膜磁気ヘッドを備えたヘッドジンバルアセンブリ及び該ヘッドジンバルアセンブリを備えた磁気ディスク装置 |
JP3681376B2 (ja) * | 2003-01-31 | 2005-08-10 | Tdk株式会社 | ヘッドジンバルアセンブリ及びハードディスク装置 |
JP3632025B2 (ja) * | 2003-02-26 | 2005-03-23 | Tdk株式会社 | 薄膜磁気ヘッド、ヘッドジンバルアセンブリ、及び、ハードディスク装置 |
JP3626954B2 (ja) * | 2003-03-12 | 2005-03-09 | Tdk株式会社 | 薄膜磁気ヘッドの製造方法、薄膜磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置 |
US7133254B2 (en) * | 2003-05-30 | 2006-11-07 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording head with heating device |
JP4030927B2 (ja) | 2003-06-18 | 2008-01-09 | アルプス電気株式会社 | 薄膜磁気ヘッド |
JP2005011414A (ja) | 2003-06-18 | 2005-01-13 | Alps Electric Co Ltd | 薄膜磁気ヘッド |
US6956716B2 (en) | 2003-07-30 | 2005-10-18 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic head having multilayer heater for thermally assisted write head and method of fabrication thereof |
JP2005056509A (ja) | 2003-08-05 | 2005-03-03 | Tdk Corp | 薄膜磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置 |
US7187520B2 (en) * | 2004-03-01 | 2007-03-06 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic head having thermally assisted recording device, and method of fabrication thereof |
JP4291754B2 (ja) * | 2004-08-10 | 2009-07-08 | ヒタチグローバルストレージテクノロジーズネザーランドビーブイ | 磁気ヘッド・スライダおよび磁気ディスク装置 |
-
2005
- 2005-07-20 JP JP2005210073A patent/JP2007026591A/ja active Pending
-
2006
- 2006-07-14 US US11/486,797 patent/US7595960B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011196714A (ja) * | 2010-03-17 | 2011-10-06 | Yamatake Corp | 発熱量算出式作成システム、発熱量算出式の作成方法、発熱量測定システム、及び発熱量の測定方法 |
JP2011203050A (ja) * | 2010-03-25 | 2011-10-13 | Yamatake Corp | 発熱量算出式作成システム、発熱量算出式の作成方法、発熱量測定システム、及び発熱量の測定方法 |
Also Published As
Publication number | Publication date |
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US20070019325A1 (en) | 2007-01-25 |
US7595960B2 (en) | 2009-09-29 |
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