JP4097627B2 - 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
- JP4097627B2 JP4097627B2 JP2004149839A JP2004149839A JP4097627B2 JP 4097627 B2 JP4097627 B2 JP 4097627B2 JP 2004149839 A JP2004149839 A JP 2004149839A JP 2004149839 A JP2004149839 A JP 2004149839A JP 4097627 B2 JP4097627 B2 JP 4097627B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- core layer
- lower core
- gap
- magnetic
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
-
- 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
-
- 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.]
-
- 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
- Y10T29/49039—Fabricating head structure or component thereof including measuring or testing with dual gap materials
-
- 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
- Y10T29/49044—Plural magnetic deposition layers
-
- 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]
- Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
(a)前記下部コア層の上に前記ギャップ層を形成し、前記ギャップ層の上に上部コア層を形成する工程と、
(b)前記上部コア層と前記ギャップ層とをトラック幅寸法に削る工程と、
(c)前記上部コア層の上面から側面、および前記ギャップ層の側面にかけて、前記下部コア層に向かって膜厚寸法が徐々に小さくなるテーパ領域が形成された非磁性材料層を形成し、このとき前記テーパ領域の下縁を前記下部コア層の上面と接触させる工程と、
(d)前記テーパ領域の下縁から両側に延びる下部コア層の上面に、上部コア層から離れる方向へ傾斜する傾斜面を形成するとともに、前記下部コア層を下方に削って前記トラック幅寸法の隆起部を形成する工程と、
(e)前記(d)工程で前記下部コア層を削ったときに、前記非磁性材料層の外側面に付着した前記下部コア層と同じ材料からなる材料層を除去する工程と、
を有することを特徴とするものである。
図1ないし図3に示すように、前記下部コア層1には、矩形状の隆起部1aが、前記下部コア層1と一体となって形成されている。つまり、図1に示す隆起部1aの両側面1c,1cは、図示垂直方向(図示Z方向)に延びる垂直面となっており、前記隆起部1aのギャップ対向面(上面)1dが平面となっている。
前記非磁性材料層8が前記ギャップ層3とトラック幅方向(図示X1−X2方向)で対向する領域には、前記非磁性材料層8のトラック幅方向(図示X1−X2方向)における幅寸法が徐々に狭まるテーパ領域8cが形成されている。前記テーパ領域8cにおける前記非磁性材料層8の外側面8aと内側面8dとの間の角度θ6は、10〜60°の範囲内であることが好ましい。前記非磁性材料層8の前記テーパ領域8c以外の領域における、トラック幅方向(図示X1−X2方向)の膜厚寸法t(図4参照)は、100〜200Åである。
ギャップ対向面(上面)1b,4a,6aを平坦化面として形成する(図2参照)。
1a 隆起部
3 ギャップ層
3a 側面
3b 下面
5 コイル層
7 上部コア層
7a 先端部
7a1 側面
7a2 上面
8 非磁性材料層
8a 外側面
8c テーパ領域
8c1 下縁
8d 内側面
8e 下縁
10 磁極部
Claims (5)
- 磁性材料の下部コア層と、下部コア層上に非磁性材料のギャップ層を介して対向する磁性材料の上部コア層と、下部コア層及び上部コア層に記録磁界を誘導するコイル層とが設けられた磁気ヘッドの製造方法において、
(a)前記下部コア層の上に前記ギャップ層を形成し、前記ギャップ層の上に上部コア層を形成する工程と、
(b)前記上部コア層と前記ギャップ層とをトラック幅寸法に削る工程と、
(c)前記上部コア層の上面から側面、および前記ギャップ層の側面にかけて、前記下部コア層に向かって膜厚寸法が徐々に小さくなるテーパ領域が形成された非磁性材料層を形成し、このとき前記テーパ領域の下縁を前記下部コア層の上面と接触させる工程と、
(d)前記テーパ領域の下縁から両側に延びる下部コア層の上面を削り、上部コア層から離れる方向へ傾斜する傾斜面を形成するとともに、前記下部コア層を下方に削って前記トラック幅寸法の隆起部を形成する工程と、
(e)前記(d)工程で前記下部コア層を削ったときに、前記非磁性材料層の外側面に付着した前記下部コア層と同じ材料からなる材料層を除去する工程と、
を有することを特徴とする磁気ヘッドの製造方法。 - 前記(c)工程で、前記上部コア層の上面を、水平方向に対して70〜90°傾斜させた状態で行うIBD(Ion Beam Deposition)法によって、前記非磁性材料層を形成する請求項1記載の磁気ヘッドの製造方法。
- 前記(b)工程を、前記ギャップ層と前記上部コア層との境界面から垂直な方向に対して、50°〜60°の角度θ1だけ傾斜した方向からイオン照射を行うイオンミリングで行う請求項1または2記載の磁気ヘッドの製造方法。
- 前記(c)工程で、前記非磁性材料を、前記下部コア層のイオンミリングレートよりも遅い材料で形成する請求項1ないし3のいずれかに記載の磁気ヘッドの製造方法。
- 前記(c)工程で、前記非磁性材料層をSiO2、Al2O3、Ru、Ta、Tiの単層膜、あるいは2種類以上の複合膜または多層膜で形成する請求項4記載の磁気ヘッドの製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004149839A JP4097627B2 (ja) | 2004-05-20 | 2004-05-20 | 磁気ヘッドの製造方法 |
US11/127,725 US7124498B2 (en) | 2004-05-20 | 2005-05-12 | Method for manufacturing magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004149839A JP4097627B2 (ja) | 2004-05-20 | 2004-05-20 | 磁気ヘッドの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005332484A JP2005332484A (ja) | 2005-12-02 |
JP4097627B2 true JP4097627B2 (ja) | 2008-06-11 |
Family
ID=35373771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004149839A Expired - Fee Related JP4097627B2 (ja) | 2004-05-20 | 2004-05-20 | 磁気ヘッドの製造方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7124498B2 (ja) |
JP (1) | JP4097627B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005166176A (ja) * | 2003-12-03 | 2005-06-23 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ディスク用磁気ヘッド |
US7551397B2 (en) * | 2005-09-02 | 2009-06-23 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head having a first magnetic pole with a self aligned stepped notch |
JP2007257775A (ja) | 2006-03-24 | 2007-10-04 | Tdk Corp | 狭幅の下部層を有する薄膜素子の製造方法及び該素子を備えた薄膜磁気ヘッド |
US7675709B2 (en) * | 2006-09-21 | 2010-03-09 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head having a stair notched, steep shouldered pole and a write gap bump |
US7467461B2 (en) * | 2007-03-20 | 2008-12-23 | Hitachi Global Storage Technologies Netherlands B.V. | Additive gap process to define trailing and side shield gap for a perpendicular write head |
US8276258B1 (en) | 2008-08-26 | 2012-10-02 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer |
US8166631B1 (en) | 2008-08-27 | 2012-05-01 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer having side shields |
US8720044B1 (en) | 2008-09-26 | 2014-05-13 | Western Digital (Fremont), Llc | Method for manufacturing a magnetic recording transducer having side shields |
US8231796B1 (en) | 2008-12-09 | 2012-07-31 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having side shields |
KR101214749B1 (ko) * | 2011-04-25 | 2012-12-21 | 삼성전기주식회사 | 적층형 파워 인덕터 |
US8451563B1 (en) | 2011-12-20 | 2013-05-28 | Western Digital (Fremont), Llc | Method for providing a side shield for a magnetic recording transducer using an air bridge |
US8980109B1 (en) | 2012-12-11 | 2015-03-17 | Western Digital (Fremont), Llc | Method for providing a magnetic recording transducer using a combined main pole and side shield CMP for a wraparound shield scheme |
US8914969B1 (en) | 2012-12-17 | 2014-12-23 | Western Digital (Fremont), Llc | Method for providing a monolithic shield for a magnetic recording transducer |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0222183B1 (en) * | 1985-10-14 | 1994-01-12 | Hitachi, Ltd. | Thin film magnetic head |
US5600519A (en) * | 1995-03-06 | 1997-02-04 | International Business Machines Corporation | Controlled saturation thin film magnetic write head |
US5867890A (en) | 1997-12-17 | 1999-02-09 | International Business Machines Corporation | Method for making a thin film merged magnetoresistive read/inductive write head having a pedestal pole tip |
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 |
US6515824B1 (en) * | 1999-05-26 | 2003-02-04 | Alps Electric Co., Ltd. | Thin film magnetic head adaptable to track narrowing of magnetic recording medium and the method of manufacturing the same |
JP3880780B2 (ja) | 1999-08-30 | 2007-02-14 | アルプス電気株式会社 | 薄膜磁気ヘッドの製造方法 |
-
2004
- 2004-05-20 JP JP2004149839A patent/JP4097627B2/ja not_active Expired - Fee Related
-
2005
- 2005-05-12 US US11/127,725 patent/US7124498B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7124498B2 (en) | 2006-10-24 |
JP2005332484A (ja) | 2005-12-02 |
US20050257365A1 (en) | 2005-11-24 |
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