JP4523460B2 - 磁性膜とその製造方法及びこれを使用した薄膜磁気ヘッドと磁気ディスク装置 - Google Patents
磁性膜とその製造方法及びこれを使用した薄膜磁気ヘッドと磁気ディスク装置 Download PDFInfo
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- JP4523460B2 JP4523460B2 JP2005064886A JP2005064886A JP4523460B2 JP 4523460 B2 JP4523460 B2 JP 4523460B2 JP 2005064886 A JP2005064886 A JP 2005064886A JP 2005064886 A JP2005064886 A JP 2005064886A JP 4523460 B2 JP4523460 B2 JP 4523460B2
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- 239000010408 film Substances 0.000 title claims description 159
- 239000010409 thin film Substances 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000007747 plating Methods 0.000 claims description 54
- 239000013078 crystal Substances 0.000 claims description 17
- 230000004907 flux Effects 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000009713 electroplating Methods 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 238000002441 X-ray diffraction Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011162 core material Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- FTLYMKDSHNWQKD-UHFFFAOYSA-N (2,4,5-trichlorophenyl)boronic acid Chemical compound OB(O)C1=CC(Cl)=C(Cl)C=C1Cl FTLYMKDSHNWQKD-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229940085605 saccharin sodium Drugs 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 3
- 238000004736 wide-angle X-ray diffraction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910002555 FeNi Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000001552 radio frequency sputter deposition Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
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
- G11B5/1278—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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/21—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being of ferrous sheet metal or other 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
- H01F10/16—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing cobalt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
- H01F41/26—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids using electric currents, e.g. electroplating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/11—Magnetic recording head
- Y10T428/115—Magnetic layer composition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/11—Magnetic recording head
- Y10T428/1171—Magnetic recording head with defined laminate structural detail
- Y10T428/1186—Magnetic recording head with defined laminate structural detail with head pole component
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Magnetic Heads (AREA)
- Thin Magnetic Films (AREA)
- Hall/Mr Elements (AREA)
Description
上述した表1の条件で、最大電流密度だけを変化させて電気めっきを行い、形成した磁性膜(CoNiFeめっき膜)の飽和磁束密度を測定した。その結果を図8に示す。
磁性膜の形成:
以下、3種類の最大電流密度で本発明にかかる磁性膜を形成した。
条件1:115mA/cm2
条件2:130mA/cm2
条件3:150mA/cm2
条件4:9mA/cm2
上記4種類の磁性膜の各々について、広角X線回折2θ/θスキャンにおいて、十分な強度で検出されるbcc(220)ピークを用い、θ軸に0deg、10deg、20deg、30deg、40degのオフセット(ψ)を与えた状態で、2θ/θスキャンを行い、試料面に平行な結晶面(ψ=0deg)から10度間隔で40度傾いた結晶面(ψ=40deg)までの面間隔dの測定を行う。
試料表面に垂直な面では、sin(ψ)2=1
試料表面に平行な面では、sin(ψ)2=0
である。
実施例2で形成した4種類の磁性膜を上部磁気コア及び下部磁気コアに使用して作製した薄膜磁気ヘッドのオーバーライトを測定して比較した。この結果を図10に示す。
図11には、実施例2で形成した4種類の磁性膜の広角X線回折2θ/θスキャン結果が示される。この結果より、(220)ピークの積分強度をI(220)、積分強度の総和をΣIとしたときの積分強度比I(220)/ΣIを求めた結果を表3に示す。
Claims (8)
- Co、Ni及びFeを含有する磁性膜であって、
前記磁性膜はめっきにより形成され、その組成は10≦Co≦40wt%、0<Ni≦2wt%、60≦Fe≦90wt%であり、膜面に平行な結晶面に対する膜面に垂直な結晶面の面間隔変化量が0.4%以上であり、飽和磁束密度が2.4テスラより大きいことを特徴とする磁性膜。 - 請求項1記載の磁性膜は、体心立方晶単相の膜であり、X線回折における各回折ピークのピーク強度の和をΣI、(220)面のピーク強度をI(220)としたとき、I(220)/ΣI≦7%であることを特徴とする磁性膜。
- 請求項1記載の磁性膜は、結晶粒径が30nm未満であることを特徴とする磁性膜。
- Co、Ni及びFeを含有する磁性膜の製造方法であって、
めっき浴のpHが2.0以下かつ最大電流密度が100mA/cm2より大きい範囲で電気めっきを行い、
組成を10≦Co≦40wt%、0<Ni≦2wt%、60≦Fe≦90wt%とし、飽和磁束密度を2.4テスラより大きくすることを特徴とする磁性膜の製造方法。 - 請求項1から請求項3のいずれか一項記載の磁性膜を、磁気ギャップ近傍に有することを特徴とする薄膜磁気ヘッド。
- 請求項5記載の薄膜磁気ヘッドにおいて、前記磁性膜の膜厚が0.5μm未満であることを特徴とする薄膜磁気ヘッド。
- 請求項5記載の薄膜磁気ヘッドにおいて、磁気ギャップ膜が非磁性金属により構成され、前記磁気ギャップ膜は、前記磁性膜のめっき下地膜を兼ねていることを特徴とする薄膜磁気ヘッド。
- 請求項5記載の薄膜磁気ヘッドを搭載したことを特徴とする磁気ディスク装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005064886A JP4523460B2 (ja) | 2005-03-09 | 2005-03-09 | 磁性膜とその製造方法及びこれを使用した薄膜磁気ヘッドと磁気ディスク装置 |
US11/372,835 US7679860B2 (en) | 2005-03-09 | 2006-03-09 | Thin film magnetic head with layer having high saturation magnetic flux density, and magnetic storage apparatus |
Applications Claiming Priority (1)
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JP2005064886A JP4523460B2 (ja) | 2005-03-09 | 2005-03-09 | 磁性膜とその製造方法及びこれを使用した薄膜磁気ヘッドと磁気ディスク装置 |
Publications (2)
Publication Number | Publication Date |
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JP2006253252A JP2006253252A (ja) | 2006-09-21 |
JP4523460B2 true JP4523460B2 (ja) | 2010-08-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005064886A Expired - Fee Related JP4523460B2 (ja) | 2005-03-09 | 2005-03-09 | 磁性膜とその製造方法及びこれを使用した薄膜磁気ヘッドと磁気ディスク装置 |
Country Status (2)
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US (1) | US7679860B2 (ja) |
JP (1) | JP4523460B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8243387B2 (en) | 2007-04-10 | 2012-08-14 | Tdk Corporation | Magnetic head with plated magnetic film formed on PdNi alloy electrode film |
US7848055B2 (en) | 2007-06-14 | 2010-12-07 | Tdk Corporation | Magnetic head with an electrode film including different film thicknesses |
US7983001B2 (en) | 2007-11-15 | 2011-07-19 | Tdk Corporation | Slider mounted magnetic head having a perpendicular recording head with a main pole having a ruthenium(Ru) electrode film |
US8724434B2 (en) | 2012-03-23 | 2014-05-13 | Tdk Corporation | Magnetic recording system and magnetic recording device |
US9520175B2 (en) | 2013-11-05 | 2016-12-13 | Tdk Corporation | Magnetization controlling element using magnetoelectric effect |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6176642A (ja) * | 1984-09-25 | 1986-04-19 | Hitachi Ltd | Co―Ni―Fe合金の電気めっき浴及び電気めっき方法 |
JPS62256989A (ja) * | 1986-04-21 | 1987-11-09 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | コバルト−ニツケル−鉄合金の電気めつき浴組成物 |
JPH10199726A (ja) * | 1997-01-13 | 1998-07-31 | Univ Waseda | Co−Ni−Feを主成分とする軟磁性薄膜,その製造方法,それを用いた磁気ヘッド及び磁気記憶装置 |
JP2002105371A (ja) * | 2000-10-02 | 2002-04-10 | Toyo Ink Mfg Co Ltd | インキバインダー、インキ組成物及び生分解性印刷フイルム |
JP2002352403A (ja) * | 2001-05-24 | 2002-12-06 | Hitachi Ltd | 薄膜磁気ヘッド及びその製造方法 |
JP2003059717A (ja) * | 2001-08-09 | 2003-02-28 | Sony Corp | 軟磁性膜と薄膜磁気ヘッドとこれらの製造方法 |
JP2004218068A (ja) * | 2002-10-21 | 2004-08-05 | Univ Waseda | 軟磁性薄膜の製造方法及び軟磁性薄膜 |
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JPH0689422A (ja) | 1992-09-08 | 1994-03-29 | Fujitsu Ltd | コバルト−鉄−ニッケル磁性膜の製造方法 |
JP3201892B2 (ja) | 1993-04-23 | 2001-08-27 | ティーディーケイ株式会社 | 軟磁性薄膜とそれを用いた磁気インダクティブmrヘッド |
JP3229718B2 (ja) | 1993-06-11 | 2001-11-19 | ティーディーケイ株式会社 | 軟磁性合金、軟磁性薄膜および多層膜 |
JPH08241503A (ja) | 1995-03-03 | 1996-09-17 | Hitachi Ltd | 薄膜磁気ヘッド及びその製造方法 |
JP2000173014A (ja) * | 1998-12-01 | 2000-06-23 | Hitachi Ltd | 薄膜磁気ヘッド及び磁気記録ヘッド並びに磁気ディスク装置 |
JP2002183909A (ja) * | 2000-12-07 | 2002-06-28 | Hitachi Ltd | 薄膜磁気ヘッドの製造方法及び薄膜磁気ヘッドとそれを搭載した磁気ディスク装置 |
JP3249502B1 (ja) * | 2000-12-27 | 2002-01-21 | ティーディーケイ株式会社 | コバルト・ニッケル・鉄合金薄膜およびその製造方法ならびに薄膜磁気ヘッドおよびその製造方法 |
JP3679757B2 (ja) | 2001-01-15 | 2005-08-03 | アルプス電気株式会社 | 軟磁性膜の製造方法と薄膜磁気ヘッドの製造方法 |
JP2003022909A (ja) * | 2001-07-06 | 2003-01-24 | Nec Corp | 磁性薄膜とその製造方法、及びそれを用いた磁気ヘッド |
JP4183554B2 (ja) * | 2002-09-12 | 2008-11-19 | Tdk株式会社 | 軟磁性膜の製造方法と薄膜磁気ヘッドの製造方法 |
JP2004152454A (ja) * | 2002-11-01 | 2004-05-27 | Hitachi Ltd | 磁気ヘッド及びその製造方法 |
JP2005086012A (ja) * | 2003-09-09 | 2005-03-31 | Fujitsu Ltd | 磁性薄膜およびその製造方法並びに磁性薄膜を用いた磁気ヘッド |
-
2005
- 2005-03-09 JP JP2005064886A patent/JP4523460B2/ja not_active Expired - Fee Related
-
2006
- 2006-03-09 US US11/372,835 patent/US7679860B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6176642A (ja) * | 1984-09-25 | 1986-04-19 | Hitachi Ltd | Co―Ni―Fe合金の電気めっき浴及び電気めっき方法 |
JPS62256989A (ja) * | 1986-04-21 | 1987-11-09 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | コバルト−ニツケル−鉄合金の電気めつき浴組成物 |
JPH10199726A (ja) * | 1997-01-13 | 1998-07-31 | Univ Waseda | Co−Ni−Feを主成分とする軟磁性薄膜,その製造方法,それを用いた磁気ヘッド及び磁気記憶装置 |
JP2002105371A (ja) * | 2000-10-02 | 2002-04-10 | Toyo Ink Mfg Co Ltd | インキバインダー、インキ組成物及び生分解性印刷フイルム |
JP2002352403A (ja) * | 2001-05-24 | 2002-12-06 | Hitachi Ltd | 薄膜磁気ヘッド及びその製造方法 |
JP2003059717A (ja) * | 2001-08-09 | 2003-02-28 | Sony Corp | 軟磁性膜と薄膜磁気ヘッドとこれらの製造方法 |
JP2004218068A (ja) * | 2002-10-21 | 2004-08-05 | Univ Waseda | 軟磁性薄膜の製造方法及び軟磁性薄膜 |
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US20060203385A1 (en) | 2006-09-14 |
JP2006253252A (ja) | 2006-09-21 |
US7679860B2 (en) | 2010-03-16 |
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