JP4032030B2 - 磁気ヘッドの製造方法 - Google Patents
磁気ヘッドの製造方法 Download PDFInfo
- Publication number
- JP4032030B2 JP4032030B2 JP2004043757A JP2004043757A JP4032030B2 JP 4032030 B2 JP4032030 B2 JP 4032030B2 JP 2004043757 A JP2004043757 A JP 2004043757A JP 2004043757 A JP2004043757 A JP 2004043757A JP 4032030 B2 JP4032030 B2 JP 4032030B2
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- JP
- Japan
- Prior art keywords
- layer
- material layer
- magnetic
- forming
- polishing
- 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.)
- Expired - Fee Related
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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
- G11B5/33—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
- G11B5/31—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
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
- Y10T29/49043—Depositing magnetic layer or coating
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
- Y10T29/49043—Depositing magnetic layer or coating
- Y10T29/49046—Depositing magnetic layer or coating with etching or machining of magnetic material
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
- Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
前記第1磁性層形成面上から前記第1磁性層の側面および上面にかけてAl 2 O 3 より成る第3材料層を形成する工程、
SiO 2 より成る第1材料層を前記第3材料層を介して前記第1磁性層形成面の上方から前記第1磁性層の上方にかけて形成する工程、
前記第1材料層の一部を除去し、前記第1材料層を前記第1磁性層形成面上から前記第1磁性層の側面に、トラック幅方向の幅寸法が下方から上方に向かって徐々に狭まるように形成する工程、
前記第1磁性層形成面の上方から、前記第1材料層および前記第1磁性層の上方にかけて、前記第1材料層よりも研磨レートが速いAl 2 O 3 より成る第2材料層を形成する工程、
酸性スラリーを用いて、Al 2 O 3 で形成された第2材料層及び第3材料層の研磨速度と、SiO 2 で形成された第2材料層の研磨速度の比が20:1となるCMPにより、前記第1材料層、前記第2材料層、前記第3材料層および前記第1磁性層を研磨して前記第1磁性層の上面を露出させ、
このとき前記第1材料層を研磨ストッパとして研磨を終了して、前記第1材料層の上面を、前記第2材料層の上面および第1磁性層の上面と同一平坦化面に形成する工程、
前記第1磁性層の上または下にコイル層を形成する工程、
図1に示す磁気ヘッドH1は、記録媒体Mに垂直磁界を与え、記録媒体Mのハード膜Maを垂直方向に磁化させる、いわゆる垂直記録磁気ヘッドと呼ばれるものである。
図4ないし図11は前記磁気ヘッドH1の製造方法を工程別に示したものであるが、各図において左側の図は対向面H1a側から見た部分正面図、右側の図は縦断面図を示している。
したがって、前記研磨面を平坦化面として形成し易くできる。
109 コイル絶縁層
109a 上面(第1磁性層形成面)
110 主磁極(第1磁性層)
111 第1材料層
112 第2材料層
115 第2コイル層
125 第3材料層
140 トロイダルコイル層
Claims (4)
- 記録媒体との対向面で、第1磁性層が第1磁性層形成面上にトラック幅で形成されるとともに、第2磁性層がトラック幅よりも広い幅寸法で形成され、前記第1磁性層と第2磁性層とが間隔を開けて位置するとともに、ハイト側で直接的あるいは間接的に接続されている磁気ヘッドの製造方法において、以下の工程を有することを特徴とする磁気ヘッドの製造方法。
前記第1磁性層形成面上に、NiFe、CoFeあるいはNiFeCoのいずれかで形成された前記第1磁性層を形成する工程、
前記第1磁性層形成面上から前記第1磁性層の側面および上面にかけてAl 2 O 3 より成る第3材料層を形成する工程、
SiO 2 より成る第1材料層を前記第3材料層を介して前記第1磁性層形成面の上方から前記第1磁性層の上方にかけて形成する工程、
前記第1材料層の一部を除去し、前記第1材料層を前記第1磁性層形成面上から前記第1磁性層の側面に、トラック幅方向の幅寸法が下方から上方に向かって徐々に狭まるように形成する工程、
前記第1磁性層形成面の上方から、前記第1材料層および前記第1磁性層の上方にかけて、前記第1材料層よりも研磨レートが速いAl 2 O 3 より成る第2材料層を形成する工程、
酸性スラリーを用いて、Al 2 O 3 で形成された第2材料層及び第3材料層と第1磁性層の研磨速度が、SiO 2 で形成された第2材料層の研磨速度よりも速いCMPにより、前記第1材料層、前記第2材料層、前記第3材料層および前記第1磁性層を研磨して前記第1磁性層の上面を露出させ、
このとき前記第1材料層を研磨ストッパとして研磨を終了して、前記第1材料層の上面を、前記第2材料層の上面および第1磁性層の上面と同一平坦化面に形成する工程、
前記第1磁性層の上または下にコイル層を形成する工程、 - 前記第1材料層を、トラック幅方向の幅寸法が下方から上方に向かって徐々に狭まるように形成する工程にて、前記第1材料層をテーパ状に幅寸法が狭まるように形成する請求項1記載の磁気ヘッドの製造方法。
- 前記第1材料層を、トラック幅方向の幅寸法が下方から上方に向かって徐々に狭まるように形成する工程にて、前記第1材料層をトラック幅方向へ外側に向かう円弧状に形成する請求項1記載の磁気ヘッドの製造方法。
- 前記第1材料層を、トラック幅方向の幅寸法が下方から上方に向かって徐々に狭まるように形成する工程にて、前記第1材料層をトラック幅方向へ内側に向かう円弧状に形成する請求項1記載の磁気ヘッドの製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004043757A JP4032030B2 (ja) | 2004-02-20 | 2004-02-20 | 磁気ヘッドの製造方法 |
US11/051,094 US7305753B2 (en) | 2004-02-20 | 2005-02-04 | Method for manufacturing a magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004043757A JP4032030B2 (ja) | 2004-02-20 | 2004-02-20 | 磁気ヘッドの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005235316A JP2005235316A (ja) | 2005-09-02 |
JP4032030B2 true JP4032030B2 (ja) | 2008-01-16 |
Family
ID=34858026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004043757A Expired - Fee Related JP4032030B2 (ja) | 2004-02-20 | 2004-02-20 | 磁気ヘッドの製造方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7305753B2 (ja) |
JP (1) | JP4032030B2 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3988771B2 (ja) * | 2005-02-10 | 2007-10-10 | Tdk株式会社 | 複合型薄膜磁気ヘッド、磁気ヘッドアセンブリ及び磁気ディスクドライブ装置 |
JP2006252688A (ja) * | 2005-03-11 | 2006-09-21 | Alps Electric Co Ltd | 垂直磁気記録型ヘッド、および垂直磁気記録型ヘッドの製造方法 |
KR100718127B1 (ko) * | 2005-04-28 | 2007-05-14 | 삼성전자주식회사 | 수직 자기 기록헤드 |
JP2007184022A (ja) | 2006-01-04 | 2007-07-19 | Alps Electric Co Ltd | 垂直磁気記録ヘッドの主磁極形成方法 |
JP4852330B2 (ja) * | 2006-03-15 | 2012-01-11 | 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 | 垂直磁気記録ヘッド及びその製造方法 |
US7748104B2 (en) * | 2006-04-25 | 2010-07-06 | Hitachi Global Storage Technologies Netherlands B.V. | Structure and method for reduced corrosion of auxiliary poles during the fabrication of perpendicular write heads |
WO2008139514A1 (ja) * | 2007-04-27 | 2008-11-20 | Fujitsu Limited | 薄膜磁気ヘッドの製造方法 |
WO2008139513A1 (ja) * | 2007-04-27 | 2008-11-20 | Fujitsu Limited | 磁極幅測定方法 |
WO2008152702A1 (ja) * | 2007-06-13 | 2008-12-18 | Fujitsu Limited | 鍍金層の研磨方法および磁気記録ヘッドの製造方法 |
US8171618B1 (en) | 2009-06-17 | 2012-05-08 | Western Digital (Fremont), Llc | Tunable pole trim processes for fabricating trapezoidal perpendicular magnetic recording (PMR) write poles |
US8724258B2 (en) * | 2009-09-30 | 2014-05-13 | HGST Netherlands B.V. | Slanted bump design for magnetic shields in perpendicular write heads and method of making same |
US20110075299A1 (en) * | 2009-09-30 | 2011-03-31 | Olson Trevor W | Magnetic write heads for hard disk drives and method of forming same |
US8449752B2 (en) * | 2009-09-30 | 2013-05-28 | HGST Netherlands B.V. | Trailing plated step |
US8347488B2 (en) * | 2009-12-09 | 2013-01-08 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head manufactured by damascene process producing a tapered write pole with a non-magnetic step and non-magnetic bump |
US8201320B2 (en) * | 2009-12-17 | 2012-06-19 | Hitachi Global Storage Technologies Netherlands B.V. | Method for manufacturing a magnetic write head having a wrap around shield that is magnetically coupled with a leading magnetic shield |
US8547660B2 (en) * | 2009-12-17 | 2013-10-01 | HGST Netherlands B.V. | Magnetic write head manufactured by an enhanced damascene process producing a tapered write pole with a non-magnetic spacer and non-magnetic bump |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0215407A (ja) * | 1988-07-04 | 1990-01-19 | Mitsubishi Electric Corp | 磁気ヘッド |
JPH07182620A (ja) | 1993-12-21 | 1995-07-21 | Iwatsu Electric Co Ltd | 水平型薄膜磁気ヘッド及びその製造方法 |
JPH07272211A (ja) | 1994-03-31 | 1995-10-20 | Victor Co Of Japan Ltd | 薄膜磁気ヘッドの製造方法 |
JP2871641B2 (ja) * | 1996-12-18 | 1999-03-17 | 日本電気株式会社 | 磁気抵抗効果型複合ヘッドおよびその製造方法 |
JPH11232609A (ja) | 1998-02-10 | 1999-08-27 | Fujitsu Ltd | 磁気ヘッド及びその製造方法 |
US6301076B1 (en) * | 1998-03-20 | 2001-10-09 | Seagate Technology Llc | Narrow track inductive write head having a two-piece pole |
JP2000105907A (ja) * | 1998-07-30 | 2000-04-11 | Tdk Corp | 薄膜磁気ヘッドおよびその製造方法 |
WO2000077777A1 (fr) | 1999-06-14 | 2000-12-21 | Fujitsu Limited | Tete d'enregistrement magnetique utilisant un film mince et son procede de fabrication |
JP3875020B2 (ja) | 2000-12-26 | 2007-01-31 | アルプス電気株式会社 | 垂直磁気記録ヘッドの製造方法 |
-
2004
- 2004-02-20 JP JP2004043757A patent/JP4032030B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-04 US US11/051,094 patent/US7305753B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20050185340A1 (en) | 2005-08-25 |
US7305753B2 (en) | 2007-12-11 |
JP2005235316A (ja) | 2005-09-02 |
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