JP2001526820A - データトランスデューサ、および薄膜磁気テープ書込ヘッドの後端縁として底部極を利用してデータを書込むための方法 - Google Patents
データトランスデューサ、および薄膜磁気テープ書込ヘッドの後端縁として底部極を利用してデータを書込むための方法Info
- Publication number
- JP2001526820A JP2001526820A JP55047198A JP55047198A JP2001526820A JP 2001526820 A JP2001526820 A JP 2001526820A JP 55047198 A JP55047198 A JP 55047198A JP 55047198 A JP55047198 A JP 55047198A JP 2001526820 A JP2001526820 A JP 2001526820A
- Authority
- JP
- Japan
- Prior art keywords
- pole
- write head
- data
- trailing edge
- width
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000010409 thin film Substances 0.000 title description 12
- 230000008569 process Effects 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000001039 wet etching Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 30
- 238000013500 data storage Methods 0.000 claims description 19
- 238000004544 sputter deposition Methods 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 230000007704 transition Effects 0.000 abstract description 14
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 23
- 230000005415 magnetization Effects 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000005530 etching Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910001337 iron nitride Inorganic materials 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000003079 width control Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000000386 microscopy Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000000992 sputter etching Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910019586 CoZrTa Inorganic materials 0.000 description 1
- 229910005435 FeTaN Inorganic materials 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of 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
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
-
- 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
- G11B5/48—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
- G11B5/488—Disposition of heads
-
- 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
- G11B5/488—Disposition of heads
- G11B5/4893—Disposition of heads relative to moving tape
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.少なくとも1つのデータトラックを有して、複数のデータビットをデータト ラックに沿う同様の複数の位置で符号化するための移動磁気記憶媒体と、 前記記憶媒体の前記少なくとも1つのデータトラックに隣接して位置決めされ るデータトランスデューサとを含み、前記データトランスデューサは、第1の幅 の第1の極と前記第1の幅よりも大きい第2の幅の第2の極とを有する書込ヘッ ドを含み、前記記憶媒体は、前記複数の位置が前記第1の極から前記第2の極へ と移動するときに前記複数のデータビットが符号化されるように前記書込ヘッド に対して移動する、データ記憶装置。 2.前記移動磁気記憶媒体は磁気テープを含む、請求項1に記載のデータ記憶装 置。 3.前記第2の極は前記書込ヘッドの前記底部極である、請求項1に記載のデー タ記憶装置。 4.前記書込ヘッドの前記第2の極は実質的に平面的である、請求項1に記載の データ記憶装置。 5.前記第2の極はスパッタリングされた材料から形成される、請求項1に記載 のデータ記憶装置。 6.前記スパッタリングされた材料はFeNまたはその合金を含む、請求項1に 記載のデータ記憶装置。 7.前記第2の幅は前記第2の極をウエットエッチングすることによって規定さ れる、請求項1に記載のデータ記憶装置。 8.前記記憶媒体に隣接して前記書込ヘッドの前記第1の極と前記第2の極との 間に介在するギャップ層をさらに含む、請求項1に記載のデータ記憶装置。 9.前記書込ヘッドの前記第1の極と前記第2の極との間に介在する書込コイル をさらに含む、請求項1に記載のデータ記憶装置。 10.磁気記憶媒体上に複数のデータビットを符号化するための方法であって、 第1の幅の第1の極と前記第1の幅よりも大きい第2の幅の第2の極とを有す る書込ヘッドを含むデータトランスデューサを設けるステップと、 前記記憶媒体が前記第1の極から前記第2の極へと移動するときに前記データ ビットが符号化されるように前記書込ヘッドに対して前記磁気記憶媒体を移動さ せるステップとを含む、方法。 11.前記設けるステップは、 前記書込ヘッドの前記第2の極を確立するステップと、 前記磁気記憶媒体に隣接して前記第2の極の少なくとも一部の上にギャップ層 を被せるステップと、 前記第2の極に被さり、そこから絶縁されるコイルを確立するステップと、 前記コイルから絶縁される前記書込ヘッドの前記第1の極を前記コイルに被せ るステップとを含む、請求項10に記載の方法。 12.前記第2の極を確立するステップは、 実質的に平面的な基板上に磁気材料をスパッタリングするステップを含む、請 求項11に記載の方法。 13.前記スパッタリングするステップはFeNまたはその合金によって行なわ れる、請求項12に記載の方法。 14.前記確立するステップは、 前記第2の幅を確立するために前記第2の極をウエットエッチングするステッ プをさらに含む、請求項12に記載の方法。 15.磁気書込ヘッドを形成するためのプロセスであって、 前記書込ヘッドの後端縁極を形成するステップと、 前記後端縁極に被さるギャップ層を形成するステップと、 前記ギャップ層に被さる第1の絶縁層を形成するステップと、 前記第1の絶縁層に被さるコイルを形成するステップと、 前記コイルに被さる第2の絶縁層を形成するステップと、 前記書込ヘッドの前端縁極を形成するステップと、 前記コイルへの電気的接続を形成するステップとを含み、プロセス。 16.前記後端縁極を形成するステップは、 実質的に平面的な基板上に磁気材料をスパッタリングするステップをさらに含 む、請求項15に記載のプロセス。 17.前記スパッタリングするステップはFeNまたはFeN基合金を堆積する ことによって行なわれる、請求項16に記載のプロセス。 18.前記後端縁極を形成するステップは、 前記前端縁極の幅よりも大きい前記後端縁極の幅を確立するために前記後端縁 極をウエットエッチングするステップをさらに含む、請求項15に記載のプロセ ス。 19.前記ギャップ層を形成するステップは、 前記後端縁極の一部の上にアルミナを堆積するステップを含む、請求項15に 記載のプロセス。 20.前記コイルを形成するステップは、 前記第1の絶縁層へと銅を堆積するステップを含む、請求項15に記載のプロ セス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/861,076 US5973891A (en) | 1997-05-21 | 1997-05-21 | Data transducer and method for writing data utilizing the bottom pole as the trailing edge of a thin-film magnetic tape write head |
US08/861,076 | 1997-05-21 | ||
PCT/US1998/010031 WO1998053446A1 (en) | 1997-05-21 | 1998-05-15 | Data transducer and method for writing data utilizing the bottom pole as the trailing edge of a thin-film magnetic tape write head |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001526820A true JP2001526820A (ja) | 2001-12-18 |
Family
ID=25334810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55047198A Pending JP2001526820A (ja) | 1997-05-21 | 1998-05-15 | データトランスデューサ、および薄膜磁気テープ書込ヘッドの後端縁として底部極を利用してデータを書込むための方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5973891A (ja) |
EP (1) | EP0983589A1 (ja) |
JP (1) | JP2001526820A (ja) |
WO (1) | WO1998053446A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6333830B2 (en) * | 1998-11-09 | 2001-12-25 | Read-Rite Corporation | Low resistance coil structure for high speed writer |
US6163442A (en) * | 1999-03-15 | 2000-12-19 | International Business Machines Corporation | High moment bilayer first pole piece layer of a write head with high magnetic stability for promoting read signal symmetry of a read head |
US6216529B1 (en) * | 1999-06-15 | 2001-04-17 | Marburg Technology, Inc. | Glide head with tapered trailing end |
JP2004039090A (ja) * | 2002-07-03 | 2004-02-05 | Sony Corp | 磁気ヘッド装置並びにこれを用いた磁気テープドライブ装置及び磁気ディスクドライブ装置 |
US6950277B1 (en) | 2002-10-25 | 2005-09-27 | Maxtor Corporation | Concave trailing edge write pole for perpendicular recording |
US7375932B2 (en) * | 2004-11-30 | 2008-05-20 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive read head for reading cross-track magnetizations |
US7394619B2 (en) * | 2004-11-30 | 2008-07-01 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive write head for writing cross-track magnetizations |
US7079344B2 (en) * | 2004-11-30 | 2006-07-18 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording disk drive with data written and read as cross-track magnetizations |
US7869160B1 (en) * | 2005-04-27 | 2011-01-11 | Western Digital (Fremont), Llc | Perpendicular recording head with shaped pole surfaces for higher linear data densities |
US8958175B1 (en) | 2014-01-16 | 2015-02-17 | Oracle International Corporation | Tape head surface with non-uniform cross-width profile |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4819111A (en) * | 1986-08-29 | 1989-04-04 | Magnetic Peripheral Inc. | Thin film head with reduced cross section in the core for causing magnetic saturation in the leading leg's throat area |
US5465475A (en) * | 1992-07-30 | 1995-11-14 | Ricoh Co., Ltd. | Method of forming a thin film magnetic head |
US5331493A (en) * | 1992-08-21 | 1994-07-19 | Minnesota Mining And Manufacturing Company | Bidirectional thin-film magnetoresistive tape head assembly |
TW243530B (en) * | 1992-12-30 | 1995-03-21 | Ibm | Magnetoresistive sensor with improved microtrack profile for improved servo-positioning precision |
US5594608A (en) * | 1994-06-22 | 1997-01-14 | Storage Technology Corporation | Magnetic tape head with a high saturation flux density magnetic pole interposed between a nonmagnetic closure section and a magnetic ferrite substrate |
US5615069A (en) * | 1995-06-07 | 1997-03-25 | Seagate Technology, Inc. | Thin-film transducer design for undershoot reduction |
US5578342A (en) * | 1995-07-05 | 1996-11-26 | Read-Rite Corporation | Alignment of magnetic poles of thin film transducer |
-
1997
- 1997-05-21 US US08/861,076 patent/US5973891A/en not_active Expired - Lifetime
-
1998
- 1998-05-15 WO PCT/US1998/010031 patent/WO1998053446A1/en not_active Application Discontinuation
- 1998-05-15 EP EP98922357A patent/EP0983589A1/en not_active Withdrawn
- 1998-05-15 JP JP55047198A patent/JP2001526820A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0983589A1 (en) | 2000-03-08 |
WO1998053446A1 (en) | 1998-11-26 |
US5973891A (en) | 1999-10-26 |
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