CN101241703A - 具有采用多种材料的螺旋线圈结构的磁写入头 - Google Patents
具有采用多种材料的螺旋线圈结构的磁写入头 Download PDFInfo
- Publication number
- CN101241703A CN101241703A CNA2008100054561A CN200810005456A CN101241703A CN 101241703 A CN101241703 A CN 101241703A CN A2008100054561 A CNA2008100054561 A CN A2008100054561A CN 200810005456 A CN200810005456 A CN 200810005456A CN 101241703 A CN101241703 A CN 101241703A
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- CN
- China
- Prior art keywords
- magnetic
- joint pin
- write
- utmost point
- layer
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 137
- 239000000463 material Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract description 17
- 239000000696 magnetic material Substances 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 68
- 230000005415 magnetization Effects 0.000 description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 229910003321 CoFe Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000002772 conduction electron Substances 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical class C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005290 antiferromagnetic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 230000007787 long-term memory Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 239000000725 suspension Substances 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
-
- 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
-
- 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
- G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
- G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
- G11B5/315—Shield layers on both sides of the main pole, e.g. in perpendicular magnetic 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/312—Details for reducing flux leakage between the electrical coil layers and the magnetic cores or poles or between the magnetic cores or poles
- G11B5/3123—Details for reducing flux leakage between the electrical coil layers and the magnetic cores or poles or between the magnetic cores or poles by using special coil configurations or conductors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/672,483 US7633711B2 (en) | 2007-02-07 | 2007-02-07 | Magnetic write head with helical coil structure using multiple materials |
| US11/672,483 | 2007-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101241703A true CN101241703A (zh) | 2008-08-13 |
| CN101241703B CN101241703B (zh) | 2011-04-13 |
Family
ID=39675932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100054561A Expired - Fee Related CN101241703B (zh) | 2007-02-07 | 2008-02-04 | 具有采用多种材料的螺旋线圈结构的磁写入头 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7633711B2 (zh) |
| JP (1) | JP2008192284A (zh) |
| KR (1) | KR101336463B1 (zh) |
| CN (1) | CN101241703B (zh) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100785009B1 (ko) * | 2006-03-06 | 2007-12-11 | 삼성전자주식회사 | 수직 자기 헤드 및 그 제조 방법 |
| US7791837B2 (en) * | 2006-03-31 | 2010-09-07 | Tdk Corporation | Thin film device having thin film coil wound on magnetic film |
| US8116032B2 (en) * | 2009-04-06 | 2012-02-14 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording system with auxiliary coil and circuitry for fast switching of write pole magnetization |
| US8116031B2 (en) * | 2009-04-06 | 2012-02-14 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording system with helical write coil and auxiliary coil for fast switching of write pole magnetization |
| US8351155B2 (en) * | 2009-08-17 | 2013-01-08 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording system with spin torque oscillator and control circuitry for fast switching of write pole magnetization |
| US8446690B2 (en) * | 2009-08-17 | 2013-05-21 | HGST Netherlands B.V. | Perpendicular magnetic recording write head with spin torque oscillator for fast switching of write pole magnetization |
| US8179633B2 (en) * | 2009-08-28 | 2012-05-15 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording system and write head with transverse auxiliary pole for fast switching of write pole magnetization |
| US8681590B2 (en) * | 2010-11-24 | 2014-03-25 | Seagate Technology Llc | Apparatus for increasing data rates in a magnetic head |
| US8867168B2 (en) | 2012-12-07 | 2014-10-21 | Tdk Corporation | Magnetic head for perpendicular magnetic recording having a write shield |
| US8947807B2 (en) | 2012-12-20 | 2015-02-03 | Seagate Technology Llc | Independently driven write coils |
| US8619389B1 (en) | 2013-02-26 | 2013-12-31 | Tdk Corporation | Magnetic head for perpendicular magnetic recording having a write shield |
| US8817418B1 (en) | 2013-08-15 | 2014-08-26 | Tdk Corporation | Magnetic head for perpendicular magnetic recording having a write shield |
| US10366713B1 (en) | 2018-03-06 | 2019-07-30 | Headway Technologies, Inc. | Designs for multiple perpendicular magnetic recording (PMR) writers and related head gimbal assembly (HGA) process |
| US10777220B2 (en) | 2018-04-30 | 2020-09-15 | Headway Technologies, Inc. | Coil routing designs for dual and triple perpendicular magnetic recording (PMR) writers |
| US10360935B1 (en) | 2018-05-22 | 2019-07-23 | Headway Technologies, Inc. | Dual write heater for slider surface topography control in double perpendicular magnetic recording (PMR) writers |
| US10872625B1 (en) * | 2019-11-21 | 2020-12-22 | Western Digital Technologies, Inc. | Helical coils design and process for dual writer magnetic recording |
| US10878841B1 (en) | 2019-11-25 | 2020-12-29 | Western Digital Technologies, Inc. | Dual writer for advanced magnetic recording |
| US10839831B1 (en) | 2019-12-30 | 2020-11-17 | Western Digital Technologies, Inc. | Dual writer designs with SOT and STT assisted recording |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5311386A (en) * | 1989-06-02 | 1994-05-10 | Digital Equipment Corporation | Transducer with improved inductive coupling |
| US6195232B1 (en) * | 1995-08-24 | 2001-02-27 | Torohead, Inc. | Low-noise toroidal thin film head with solenoidal coil |
| FR2745111B1 (fr) * | 1996-02-15 | 1998-03-13 | Commissariat Energie Atomique | Tete magnetique verticale a bobinage integre et son procede de realisation |
| JP2000123318A (ja) * | 1998-10-15 | 2000-04-28 | Tdk Corp | 薄膜磁気ヘッドおよびその製造方法 |
| US6330128B1 (en) * | 1999-04-26 | 2001-12-11 | International Business Machines Corporation | Magnetic head assembly having open yoke write head with highly defined narrow track width |
| US6441994B1 (en) * | 1999-07-15 | 2002-08-27 | Seagate Technology Llc | High frequency response writer with recessed shared pole and vertical coils |
| US6819527B1 (en) * | 2000-03-23 | 2004-11-16 | Hitachi Global Storage Technologies, Inc. | Magnetic head with lower coil traces connected to integrally formed vertical interconnects and upper coil traces through plural insulating layer arrangement |
| US6661605B1 (en) * | 2000-07-28 | 2003-12-09 | Seagate Technology Llc | Transducing head having a reduced thermal pole tip recession |
| US6747841B1 (en) * | 2000-09-06 | 2004-06-08 | Seagate Technology Llc | Optimization of temperature dependent variations in shield and pole recession/protrusion through use of a composite overcoat layer |
| US6754050B2 (en) * | 2002-06-14 | 2004-06-22 | Seagate Technology Llc | Shared pole design for reduced thermal pole tip protrusion |
| US7092208B2 (en) * | 2002-07-11 | 2006-08-15 | Seagate Technology Llc | Magnetic transducers with reduced thermal pole-tip protrusion/recession |
| US6851178B2 (en) * | 2002-10-24 | 2005-02-08 | Headway Technologies, Inc. | Process of manufacturing a magnetic write head |
| US7092205B1 (en) * | 2002-10-29 | 2006-08-15 | Seagate Technology Llc | Isolated transducer portions in magnetic heads |
| JP2004362659A (ja) * | 2003-06-04 | 2004-12-24 | Alps Electric Co Ltd | 薄膜磁気ヘッド |
| US7079353B2 (en) * | 2003-07-29 | 2006-07-18 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion |
| US6999277B2 (en) * | 2003-07-30 | 2006-02-14 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic head having thermally assisted write head with heater element, and protective sacrificial layer |
| US7120988B2 (en) * | 2003-09-26 | 2006-10-17 | Hitachi Global Storage Technologies Netherlands B.V. | Method for forming a write head having air bearing surface (ABS) |
| JP2007035082A (ja) * | 2005-07-22 | 2007-02-08 | Hitachi Global Storage Technologies Netherlands Bv | 垂直記録用磁気ヘッド及びその製造方法 |
-
2007
- 2007-02-07 US US11/672,483 patent/US7633711B2/en active Active
-
2008
- 2008-01-16 KR KR1020080004963A patent/KR101336463B1/ko not_active Expired - Fee Related
- 2008-01-24 JP JP2008013781A patent/JP2008192284A/ja active Pending
- 2008-02-04 CN CN2008100054561A patent/CN101241703B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR101336463B1 (ko) | 2013-12-16 |
| JP2008192284A (ja) | 2008-08-21 |
| US20080186628A1 (en) | 2008-08-07 |
| KR20080074025A (ko) | 2008-08-12 |
| CN101241703B (zh) | 2011-04-13 |
| US7633711B2 (en) | 2009-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HGST NETHERLANDS BV Free format text: FORMER NAME: HITACHI GLOBAL STORAGE TECH |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Amsterdam, The Netherlands Patentee after: HGST Netherlands B.V. Address before: Amsterdam, The Netherlands Patentee before: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190123 Address after: California, USA Patentee after: Western Digital Technologies, Inc. Address before: Amsterdam, The Netherlands Patentee before: HGST Netherlands B.V. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |