JP4614916B2 - 窪みの形成方法、枠型の形成方法および枠型 - Google Patents
窪みの形成方法、枠型の形成方法および枠型 Download PDFInfo
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- JP4614916B2 JP4614916B2 JP2006158878A JP2006158878A JP4614916B2 JP 4614916 B2 JP4614916 B2 JP 4614916B2 JP 2006158878 A JP2006158878 A JP 2006158878A JP 2006158878 A JP2006158878 A JP 2006158878A JP 4614916 B2 JP4614916 B2 JP 4614916B2
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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
- G11B5/3116—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
-
- 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
- G11B5/31—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
-
- 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
- H01F41/32—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 conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film
- H01F41/34—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 conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film in patterns, e.g. by lithography
-
- 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
-
- 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
-
- 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
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, 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
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49147—Assembling terminal to base
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
Claims (14)
- 互いに異なる傾斜角度の内壁を有する窪みを形成する方法であって、
基板上に第1の材料層を成膜したのちにパターニングすることにより、第1の領域に前記第1の材料層を配置する工程と、
前記基板上に第2の材料層を成膜したのちにパターニングすることにより、前記第1の領域と連結された第2の領域に前記第2の材料層を配置する工程と、
前記第1および第2の領域上に、前記窪みを画定するためのエッチングマスクを形成する工程と、
前記エッチングマスクを用いて反応性イオンエッチングによって前記第1および第2の材料層を一括してエッチングすることにより、それらの層の間において内壁の傾斜角度が互いに異なるように窪みを形成する工程と
を含むことを特徴とする窪みの形成方法。 - 前記第1および第2の材料は、それぞれアルミナ(Al2 O3 )およびタンタル(Ta)であり、
反応イオンエッチング工程において、エッチング条件としてエッチング時間を90秒、ソースパワーを最大1200W、チャックパワーを40W、圧力を0.3Paおよびチャンバ温度を100℃とすると共に、エッチャントとして流速90×10-5m3 /hの塩素(Cl2 )、流速480×10-5m3 /hの三塩化ホウ素(BCl3 )および流速72×10-5m3 /hの四フッ化炭素(CF4 )を用いる
ことを特徴とする請求項1記載の窪みの形成方法。 - 前記第1の材料層の内壁の傾斜角度は、7°以上12°以下の範囲内であり、
前記第2の材料層の内壁の傾斜角度は、最大4°である
ことを特徴とする請求項2記載の窪みの形成方法。 - エアベアリング面およびネックハイトを有する磁極チップと、フレアポイントにおいて前記磁極チップに連結されたヨークとを含む磁性部品を形成するために用いられる枠型を形成する方法であって、
基板およびその上に設けられたリフトオフマスクを覆うように第1のタンタル層を成膜したのち、そのリフトオフマスクをリフトオフすることにより、前記ヨークの形成領域を覆うと共に前記基板に対して傾斜した傾斜端部を有するように前記第1のタンタル層を残存させる工程と、
前記基板および前記第1のタンタル層を覆うようにアルミナ層を成膜したのち、その第1のタンタル層が露出するまで前記アルミナ層を平坦化する工程と、
前記第1のタンタル層および前記アルミナ層を覆うように第2のタンタル層を成膜する工程と、
前記第2のタンタル層上にフォトレジスト層を成膜したのちにパターニングすることにより、前記第1のタンタル層の傾斜端部の真上に前記フレアポイントが位置するように、前記磁極チップおよび前記ヨークの形成領域を画定するためのマスクを形成する工程と、
前記マスクを用いて反応性イオンエッチングによって前記第1および第2のタンタル層ならびに前記アルミナ層を一括してエッチングすることにより、前記第1および第2のタンタル層が最大4°の角度で傾斜した内壁を有すると共に、前記アルミナ層が7°以上12°以下の範囲内の角度で傾斜した内壁を有するように、窪みを形成する工程と
を含むことを特徴とする枠型の形成方法。 - 前記第1のタンタル層は、スパッタリング法、イオンビーム成膜法または化学蒸着法のうちのいずれかを用いて成膜される
ことを特徴とする請求項4記載の枠型の形成方法。 - 前記第1のタンタル層は、200nm以上300nm以下の範囲内の厚さとなるように成膜される
ことを特徴とする請求項4記載の枠型の形成方法。 - 前記アルミナ層は、300nm以上400nm以下の範囲内の厚さとなるように成膜される
ことを特徴とする請求項4記載の枠型の形成方法。 - 前記第2のタンタル層は、50nm以上100nm以下の範囲内の厚さとなるように成膜される
ことを特徴とする請求項4記載の枠型の形成方法。 - 反応性イオンエッチング工程において、エッチング条件としてエッチング時間を90秒、ソースパワーを最大1200W、チャックパワーを40W、圧力を0.3Paおよびチャンバ温度を100℃とすると共に、エッチャントとして流速90×10-5m3 /hの塩素、流速480×10-5m3 /hの三塩化ホウ素および流速72×10-5m3 /hの四フッ化炭素を用いる
ことを特徴とする請求項4記載の枠型の形成方法。 - ネックハイトを有する磁性部品を形成するために用いられる枠型であって、
第1の幅および7°以上12°以下の範囲内の角度で傾斜した内壁を有し、磁極チップを形成するためにアルミナ層に設けられた第1の窪みと、
前記第1の幅よりも大きな第2の幅および最大4°の角度で傾斜した内壁を有し、ヨークを形成するためにタンタル層に設けられた第2の窪みと
を含み、
前記第1および第2の窪みがフレアポイントにおいて互いに連結されている
ことを特徴とする枠型。 - 前記アルミナ層の厚さは、300nm以上400nm以下の範囲内である
ことを特徴とする請求項10記載の枠型。 - 前記タンタル層の厚さは、250nm以上400nm以下の範囲内である
ことを特徴とする請求項10記載の枠型。 - 前記第1の幅は、0.15μm以上0.25μm以下の範囲内である
ことを特徴とする請求項10記載の枠型。 - 前記第2の幅は、10μm以上15μm以下の範囲内である
ことを特徴とする請求項10記載の枠型。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/146,583 US7313863B2 (en) | 2005-06-07 | 2005-06-07 | Method to form a cavity having inner walls of varying slope |
Publications (2)
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JP2006344352A JP2006344352A (ja) | 2006-12-21 |
JP4614916B2 true JP4614916B2 (ja) | 2011-01-19 |
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JP2006158878A Expired - Fee Related JP4614916B2 (ja) | 2005-06-07 | 2006-06-07 | 窪みの形成方法、枠型の形成方法および枠型 |
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JP (1) | JP4614916B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8027125B2 (en) * | 2007-06-21 | 2011-09-27 | Headway Technologies, Inc. | PMR with improved writability and process controllability by double layer patterning |
US7957097B2 (en) * | 2007-06-28 | 2011-06-07 | Headway Technologies, Inc. | Magnetic head for perpendicular magnetic recording and method of manufacturing same |
US8049989B2 (en) * | 2007-12-26 | 2011-11-01 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head for perpendicular recording having stepped wrap around shield with independent control of write pole track width and flare point dimensions |
US8179634B2 (en) * | 2007-12-27 | 2012-05-15 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording writer main pole having imbedded non-magnetic core and de-coupled pole tip |
US8031434B2 (en) * | 2007-12-28 | 2011-10-04 | Hitachi Global Storage Technologies Netherlands B.V. | Hybrid, self aligned magnetic write head with a partially plated pole and method of producing same |
US8074957B2 (en) | 2008-09-25 | 2011-12-13 | Prime Forming & Construction Supplies, Inc. | Formliner and method of use |
US8649123B1 (en) * | 2008-11-26 | 2014-02-11 | Western Digital (Fremont), Llc | Method to eliminate reactive ion etching (RIE) loading effects for damascene perpendicular magnetic recording (PMR) fabrication |
US8551347B2 (en) * | 2008-12-22 | 2013-10-08 | HGST Netherlands B.V. | Methods for creating a stepped perpendicular magnetic pole via milling and/or metal liftoff |
US8125732B2 (en) * | 2009-08-25 | 2012-02-28 | Headway Technologies, Inc. | Tapered PMR write pole with straight side wall portion |
US9449635B2 (en) | 2013-05-02 | 2016-09-20 | HGST Netherlands B.V. | Method for forming a magnetic head for perpendicular magnetic recording |
USD791364S1 (en) | 2014-09-25 | 2017-07-04 | Prime Forming & Construction Supplies, Inc. | Formliner |
US20160237704A1 (en) | 2015-02-14 | 2016-08-18 | Prime Forming & Construction Supplies, Inc., dba Fitzgerald Formliners | Formliners and methods of use |
US10406721B2 (en) | 2015-12-28 | 2019-09-10 | Prime Forming & Construction Supplies, Inc. | Formliner for forming a pattern in curable material and method of use |
Citations (2)
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JP2003242607A (ja) * | 2002-02-14 | 2003-08-29 | Hitachi Ltd | 垂直記録用磁気ヘッド及びそれを搭載した磁気ディスク装置 |
JP2005216361A (ja) * | 2004-01-28 | 2005-08-11 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ヘッド及びその製造方法 |
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DE3566848D1 (en) * | 1984-05-04 | 1989-01-19 | Siemens Ag | Thin-layer double-gap magnetic head for a perpendicularly magnetized recording medium |
JPH07122940B2 (ja) * | 1985-01-14 | 1995-12-25 | 株式会社リコー | 光磁気記録媒体の製造方法 |
US4656546A (en) * | 1985-01-22 | 1987-04-07 | Digital Equipment Corporation | Vertical magnetic recording arrangement |
US5839193A (en) * | 1994-04-15 | 1998-11-24 | Hutchinson Technology Incorporated | Method of making laminated structures for a disk drive suspension assembly |
JPH11353616A (ja) | 1998-06-11 | 1999-12-24 | Tdk Corp | 薄膜磁気ヘッドおよびその製造方法 |
US6510024B2 (en) * | 1998-06-30 | 2003-01-21 | Fujitsu Limited | Magnetic head and method of manufacturing the same |
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US6504675B1 (en) * | 2000-01-12 | 2003-01-07 | Seagate Technology Llc | Perpendicular magnetic recording heads with write pole shaped to reduce skew effects during writing |
JP2002123907A (ja) * | 2000-10-13 | 2002-04-26 | Tdk Corp | 薄膜磁気ヘッドの製造方法 |
JP2002123909A (ja) * | 2000-10-19 | 2002-04-26 | Fujitsu Ltd | 薄膜磁気ヘッド |
GB0113143D0 (en) * | 2001-05-29 | 2001-07-25 | Koninl Philips Electronics Nv | Manufacture of trench-gate semiconductor devices |
US6821717B2 (en) * | 2002-08-02 | 2004-11-23 | Headway Technologies, Inc. | Process to form narrow write track for magnetic recording |
-
2005
- 2005-06-07 US US11/146,583 patent/US7313863B2/en active Active
-
2006
- 2006-06-07 JP JP2006158878A patent/JP4614916B2/ja not_active Expired - Fee Related
-
2007
- 2007-12-14 US US12/002,160 patent/US7975366B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003242607A (ja) * | 2002-02-14 | 2003-08-29 | Hitachi Ltd | 垂直記録用磁気ヘッド及びそれを搭載した磁気ディスク装置 |
JP2005216361A (ja) * | 2004-01-28 | 2005-08-11 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ヘッド及びその製造方法 |
Also Published As
Publication number | Publication date |
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US20060276039A1 (en) | 2006-12-07 |
US7313863B2 (en) | 2008-01-01 |
US7975366B2 (en) | 2011-07-12 |
US20080096114A1 (en) | 2008-04-24 |
JP2006344352A (ja) | 2006-12-21 |
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