DE69903344D1 - Magnetischer schreibkopf - Google Patents
Magnetischer schreibkopfInfo
- Publication number
- DE69903344D1 DE69903344D1 DE69903344T DE69903344T DE69903344D1 DE 69903344 D1 DE69903344 D1 DE 69903344D1 DE 69903344 T DE69903344 T DE 69903344T DE 69903344 T DE69903344 T DE 69903344T DE 69903344 D1 DE69903344 D1 DE 69903344D1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- insulation
- write
- thickness
- write coil
- 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
Links
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
-
- 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
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
-
- 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
- G11B5/31—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/205,476 US6181514B1 (en) | 1998-12-04 | 1998-12-04 | Scaled write head with high recording density and high data rate |
PCT/GB1999/003950 WO2000034945A1 (en) | 1998-12-04 | 1999-11-29 | Magnetic write head |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69903344D1 true DE69903344D1 (de) | 2002-11-07 |
DE69903344T2 DE69903344T2 (de) | 2003-07-31 |
Family
ID=22762340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69903344T Expired - Fee Related DE69903344T2 (de) | 1998-12-04 | 1999-11-29 | Magnetischer schreibkopf |
Country Status (12)
Country | Link |
---|---|
US (1) | US6181514B1 (de) |
EP (1) | EP1135770B1 (de) |
JP (1) | JP2002532814A (de) |
KR (1) | KR100420540B1 (de) |
CN (1) | CN1135532C (de) |
AT (1) | ATE225555T1 (de) |
AU (1) | AU1287600A (de) |
DE (1) | DE69903344T2 (de) |
HK (1) | HK1041973B (de) |
HU (1) | HUP0104499A3 (de) |
MY (1) | MY117618A (de) |
WO (1) | WO2000034945A1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3799168B2 (ja) * | 1998-08-20 | 2006-07-19 | 株式会社日立グローバルストレージテクノロジーズ | 磁気記録再生装置 |
JP2000099913A (ja) * | 1998-09-24 | 2000-04-07 | Tdk Corp | 薄膜磁気ヘッドおよびその製造方法 |
JP3599235B2 (ja) * | 1999-07-19 | 2004-12-08 | Tdk株式会社 | 薄膜磁気ヘッド、磁気ヘッド装置及び磁気ディスク装置 |
US6396660B1 (en) * | 1999-08-23 | 2002-05-28 | Read-Rite Corporation | Magnetic write element having a thermally dissipative structure |
US6631546B1 (en) * | 2000-02-01 | 2003-10-14 | International Business Machines Corporation | Self-aligned void filling for mushroomed plating |
US6493183B1 (en) * | 2000-06-29 | 2002-12-10 | International Business Machines Corporation | Thermally-assisted magnetic recording system with head having resistive heater in write gap |
US6687083B2 (en) * | 2001-08-22 | 2004-02-03 | Hitachi Global Storage Technologies Netherlands B.V. | Enhanced low profile magnet write head |
JP2003085707A (ja) * | 2001-09-12 | 2003-03-20 | Hitachi Ltd | 磁気ヘッドおよび磁気ヘッドの製造方法並びにこれを用いた磁気ディスク装置 |
US6914750B2 (en) * | 2001-10-05 | 2005-07-05 | Headway Technologies, Inc. | Thermal protrusion reduction in magnet heads by utilizing heat sink layers |
US6721138B1 (en) | 2001-10-24 | 2004-04-13 | Western Digital (Fremont), Inc. | Inductive transducer with stitched pole tip and pedestal defining zero throat height |
JP3763526B2 (ja) * | 2002-04-04 | 2006-04-05 | Tdk株式会社 | マイクロデバイス及びその製造方法 |
EP1398763B1 (de) * | 2002-08-08 | 2006-05-03 | Hitachi Global Storage Technologies Netherlands B.V. | Kühlkörper für einen magnetischen Aufzeichnungskopf |
US7170713B2 (en) * | 2002-08-08 | 2007-01-30 | Hitachi Global Storage Technologies Netherlands B.V. | Heat sink for a magnetic recording head |
US6989963B2 (en) * | 2002-09-13 | 2006-01-24 | Seagate Technology Llc | Writer core structures having improved thermal dissipation properties |
JP3799322B2 (ja) * | 2002-11-15 | 2006-07-19 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ディスク装置 |
US6867940B2 (en) * | 2003-06-16 | 2005-03-15 | Seagate Technology Llc | Method and apparatus for mitigating thermal pole tip protrusion |
US7268973B2 (en) * | 2003-07-24 | 2007-09-11 | Hitachi Global Storage Technologies Netherlands, B.V. | Perpendicular magnetic head having thermally assisted recording element |
US7031121B2 (en) * | 2003-07-30 | 2006-04-18 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece |
US6975472B2 (en) * | 2003-09-12 | 2005-12-13 | Seagate Technology Llc | Head with heating element and control regime therefor |
US7310204B1 (en) | 2003-12-19 | 2007-12-18 | Western Digital (Fremont), Llc | Inductive writer design for using a soft magnetic pedestal having a high magnetic saturation layer |
US7748439B2 (en) | 2004-04-13 | 2010-07-06 | Headway Technologies, Inc. | Heat extractor for magnetic reader-writer |
US7379269B1 (en) * | 2004-07-30 | 2008-05-27 | Western Digital (Fremont), Llc | Write element with reduced yoke length for ultra-high density writing |
US7522379B1 (en) | 2004-07-30 | 2009-04-21 | Western Digital (Fremont), Llc | Write element with recessed pole and heat sink layer for ultra-high density writing |
US7238292B1 (en) | 2004-07-30 | 2007-07-03 | Western Digital (Fremont), Inc. | Method of fabricating a write element with a reduced yoke length |
US7411264B2 (en) * | 2004-11-18 | 2008-08-12 | Seagate Technology Llc | Etch-stop layers for patterning block structures for reducing thermal protrusion |
JP2006268947A (ja) * | 2005-03-23 | 2006-10-05 | Fujitsu Ltd | 磁気ヘッド構造 |
US8724263B2 (en) | 2005-08-11 | 2014-05-13 | Seagate Technology Llc | Method for active control of spacing between a head and a storage medium |
US7808746B2 (en) * | 2005-08-11 | 2010-10-05 | Seagate Technology Llc | Method and apparatus for active control of spacing between a head and a storage medium |
US7791834B2 (en) * | 2006-08-14 | 2010-09-07 | International Business Machines Corporation | Magnetic head having a ratio of back gap width to front gap width in about a defined range |
CN101241707A (zh) | 2007-02-07 | 2008-08-13 | 新科实业有限公司 | 具有静电防护结构的柔性装配磁头、磁头折片组合及磁盘驱动单元 |
CN102270458A (zh) | 2010-06-03 | 2011-12-07 | 新科实业有限公司 | 具有灵敏反馈装置用于形成磁头的磁条及制造磁头的方法 |
US8817425B1 (en) * | 2013-03-15 | 2014-08-26 | Headway Technologies, Inc. | Dual-piece heat sink layer for robust reader in magnetic recording head |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819716A (ja) * | 1981-07-27 | 1983-02-04 | Hitachi Ltd | 薄膜磁気ヘツドおよびその製造方法 |
JPS5898822A (ja) * | 1981-12-09 | 1983-06-11 | Comput Basic Mach Technol Res Assoc | 薄膜磁気ヘツド |
JPS58212615A (ja) * | 1982-06-04 | 1983-12-10 | Hitachi Ltd | 薄膜磁気ヘツド |
JPS5971115A (ja) * | 1982-10-15 | 1984-04-21 | Hitachi Ltd | 磁気ヘッド |
JPH07118057B2 (ja) * | 1984-08-06 | 1995-12-18 | 富士写真フイルム株式会社 | 薄膜磁気ヘッドの製造方法 |
JPS63177311A (ja) * | 1987-01-19 | 1988-07-21 | Hitachi Ltd | 薄膜磁気ヘツド |
JPH01128215A (ja) * | 1987-11-12 | 1989-05-19 | Sumitomo Metal Ind Ltd | 薄膜磁気ヘッドおよびその製造方法 |
JPH0294013A (ja) * | 1988-09-30 | 1990-04-04 | Hitachi Ltd | 薄膜磁気ヘツド |
US5032944A (en) * | 1989-01-12 | 1991-07-16 | Mitsubishi Denki Kabushiki Kaisha | Membrane type magnetic head |
US5241440A (en) * | 1989-08-23 | 1993-08-31 | Hitachi, Ltd. | Thin film magnetic head and manufacturing method therefor |
DE69123487T2 (de) * | 1990-05-31 | 1997-06-26 | Sony Corp | Dünnfilmmagnetkopf |
JPH05151534A (ja) * | 1991-11-29 | 1993-06-18 | Hitachi Ltd | 複合型薄膜磁気ヘツド |
JPH0778312A (ja) * | 1993-09-09 | 1995-03-20 | Tdk Corp | 薄膜磁気ヘッド |
US5486968A (en) * | 1993-11-10 | 1996-01-23 | International Business Machines Corporation | Method and apparatus for simultaneous write head planarization and lead routing |
TW273618B (de) * | 1994-08-25 | 1996-04-01 | Ibm | |
JPH08138211A (ja) * | 1994-11-10 | 1996-05-31 | Fujitsu Ltd | 薄膜磁気ヘッド |
US5606478A (en) * | 1994-12-08 | 1997-02-25 | International Business Machines Corporation | Ni45 Fe55 metal-in-gap thin film magnetic head |
US5515221A (en) * | 1994-12-30 | 1996-05-07 | International Business Machines Corporation | Magnetically stable shields for MR head |
US5798897A (en) | 1996-10-21 | 1998-08-25 | International Business Machines Corporation | Inductive write head with insulation stack configured for eliminating reflective notching |
-
1998
- 1998-12-04 US US09/205,476 patent/US6181514B1/en not_active Expired - Lifetime
-
1999
- 1999-11-16 MY MYPI99004975A patent/MY117618A/en unknown
- 1999-11-29 JP JP2000587326A patent/JP2002532814A/ja active Pending
- 1999-11-29 CN CNB998141011A patent/CN1135532C/zh not_active Expired - Fee Related
- 1999-11-29 EP EP99956233A patent/EP1135770B1/de not_active Expired - Lifetime
- 1999-11-29 AU AU12876/00A patent/AU1287600A/en not_active Abandoned
- 1999-11-29 DE DE69903344T patent/DE69903344T2/de not_active Expired - Fee Related
- 1999-11-29 KR KR10-2001-7006777A patent/KR100420540B1/ko not_active IP Right Cessation
- 1999-11-29 WO PCT/GB1999/003950 patent/WO2000034945A1/en active IP Right Grant
- 1999-11-29 AT AT99956233T patent/ATE225555T1/de not_active IP Right Cessation
- 1999-11-29 HU HU0104499A patent/HUP0104499A3/hu unknown
-
2002
- 2002-05-03 HK HK02103372.0A patent/HK1041973B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HUP0104499A2 (hu) | 2002-03-28 |
HK1041973B (zh) | 2004-09-10 |
ATE225555T1 (de) | 2002-10-15 |
EP1135770B1 (de) | 2002-10-02 |
DE69903344T2 (de) | 2003-07-31 |
AU1287600A (en) | 2000-06-26 |
CN1135532C (zh) | 2004-01-21 |
HK1041973A1 (en) | 2002-07-26 |
EP1135770A1 (de) | 2001-09-26 |
US6181514B1 (en) | 2001-01-30 |
KR100420540B1 (ko) | 2004-03-02 |
CN1329740A (zh) | 2002-01-02 |
WO2000034945A1 (en) | 2000-06-15 |
HUP0104499A3 (en) | 2002-06-28 |
JP2002532814A (ja) | 2002-10-02 |
MY117618A (en) | 2004-07-31 |
KR20010101098A (ko) | 2001-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B. |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |