JP5372361B2 - 高周波場支援書込み装置 - Google Patents
高周波場支援書込み装置 Download PDFInfo
- Publication number
- JP5372361B2 JP5372361B2 JP2007314441A JP2007314441A JP5372361B2 JP 5372361 B2 JP5372361 B2 JP 5372361B2 JP 2007314441 A JP2007314441 A JP 2007314441A JP 2007314441 A JP2007314441 A JP 2007314441A JP 5372361 B2 JP5372361 B2 JP 5372361B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic layer
- layer
- write
- magnetization
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 185
- 230000005415 magnetization Effects 0.000 claims description 51
- 230000010355 oscillation Effects 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910003321 CoFe Inorganic materials 0.000 claims description 2
- 229910019236 CoFeB Inorganic materials 0.000 claims description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 169
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
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- 230000001965 increasing effect Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000002889 diamagnetic material Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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- 230000005381 magnetic domain Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 1
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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
- G11B5/1278—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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/634,767 | 2006-12-06 | ||
| US11/634,767 US7724469B2 (en) | 2006-12-06 | 2006-12-06 | High frequency field assisted write device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008176908A JP2008176908A (ja) | 2008-07-31 |
| JP2008176908A5 JP2008176908A5 (enExample) | 2010-10-28 |
| JP5372361B2 true JP5372361B2 (ja) | 2013-12-18 |
Family
ID=39497693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007314441A Expired - Fee Related JP5372361B2 (ja) | 2006-12-06 | 2007-12-05 | 高周波場支援書込み装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7724469B2 (enExample) |
| JP (1) | JP5372361B2 (enExample) |
| CN (1) | CN101206865B (enExample) |
Families Citing this family (118)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7768741B2 (en) * | 2006-05-22 | 2010-08-03 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head design for reducing wide area track erasure |
| US20070297081A1 (en) * | 2006-06-27 | 2007-12-27 | Seagate Technology Llc | Magnetic device for current assisted magnetic recording |
| JP2008277586A (ja) * | 2007-04-27 | 2008-11-13 | Toshiba Corp | 磁気素子、磁気記録ヘッド及び磁気記録装置 |
| KR20080108016A (ko) * | 2007-06-07 | 2008-12-11 | 가부시끼가이샤 도시바 | 자기 기록 헤드 및 자기 기록 장치 |
| US7855853B2 (en) * | 2007-06-20 | 2010-12-21 | Seagate Technology Llc | Magnetic write device with a cladded write assist element |
| US8098455B2 (en) * | 2007-06-27 | 2012-01-17 | Seagate Technology Llc | Wire-assisted magnetic write device with phase shifted current |
| US8994587B2 (en) | 2010-05-14 | 2015-03-31 | Qualcomm Incorporated | Compressed sensing for navigation data |
| JP4358279B2 (ja) * | 2007-08-22 | 2009-11-04 | 株式会社東芝 | 磁気記録ヘッド及び磁気記録装置 |
| JP4919901B2 (ja) * | 2007-09-04 | 2012-04-18 | 株式会社東芝 | 磁気記録ヘッド及び磁気記録装置 |
| JP4818234B2 (ja) * | 2007-09-05 | 2011-11-16 | 株式会社東芝 | 磁気記録再生装置 |
| JP2009070439A (ja) * | 2007-09-11 | 2009-04-02 | Toshiba Corp | 磁気記録ヘッド及び磁気記録装置 |
| JP2009080875A (ja) | 2007-09-25 | 2009-04-16 | Toshiba Corp | 磁気ヘッド及び磁気記録装置 |
| JP2009080878A (ja) * | 2007-09-25 | 2009-04-16 | Toshiba Corp | 磁気記録ヘッドおよび磁気記録装置 |
| JP4929108B2 (ja) * | 2007-09-25 | 2012-05-09 | 株式会社東芝 | 磁気ヘッドおよび磁気記録装置 |
| US8100228B2 (en) * | 2007-10-12 | 2012-01-24 | D B Industries, Inc. | Portable anchorage assembly |
| US7929258B2 (en) * | 2008-01-22 | 2011-04-19 | Seagate Technology Llc | Magnetic sensor including a free layer having perpendicular to the plane anisotropy |
| US9449618B2 (en) * | 2008-04-21 | 2016-09-20 | Seagate Technology Llc | Microwave assisted magnetic recording system |
| US20090310244A1 (en) * | 2008-06-17 | 2009-12-17 | Tdk Corporation | Thin-film magnetic head for microwave assist and microwave-assisted magnetic recording method |
| JP5377893B2 (ja) | 2008-06-19 | 2013-12-25 | 株式会社東芝 | 磁気ヘッドアセンブリおよび磁気記録再生装置 |
| JP5361259B2 (ja) * | 2008-06-19 | 2013-12-04 | 株式会社東芝 | スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| JP2010003353A (ja) * | 2008-06-19 | 2010-01-07 | Toshiba Corp | 磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| US7804709B2 (en) * | 2008-07-18 | 2010-09-28 | Seagate Technology Llc | Diode assisted switching spin-transfer torque memory unit |
| JP2010040060A (ja) * | 2008-07-31 | 2010-02-18 | Toshiba Corp | 高周波アシスト記録用磁気ヘッドおよびそれを用いた磁気記録装置 |
| JP2010040126A (ja) * | 2008-08-06 | 2010-02-18 | Toshiba Corp | 磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| US7800938B2 (en) * | 2008-08-07 | 2010-09-21 | Seagate Technology, Llc | Oscillating current assisted spin torque magnetic memory |
| US8223532B2 (en) | 2008-08-07 | 2012-07-17 | Seagate Technology Llc | Magnetic field assisted STRAM cells |
| US8054677B2 (en) | 2008-08-07 | 2011-11-08 | Seagate Technology Llc | Magnetic memory with strain-assisted exchange coupling switch |
| US20100073809A1 (en) * | 2008-09-25 | 2010-03-25 | Seagate Technology Llc | X-amr assisted recording on high density bpm media |
| US7746687B2 (en) * | 2008-09-30 | 2010-06-29 | Seagate Technology, Llc | Thermally assisted multi-bit MRAM |
| JP5320009B2 (ja) * | 2008-10-06 | 2013-10-23 | 株式会社東芝 | スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| US8487390B2 (en) * | 2008-10-08 | 2013-07-16 | Seagate Technology Llc | Memory cell with stress-induced anisotropy |
| US20100091564A1 (en) * | 2008-10-10 | 2010-04-15 | Seagate Technology Llc | Magnetic stack having reduced switching current |
| US8217478B2 (en) | 2008-10-10 | 2012-07-10 | Seagate Technology Llc | Magnetic stack with oxide to reduce switching current |
| JP5173750B2 (ja) * | 2008-11-06 | 2013-04-03 | 株式会社東芝 | スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| US8724260B2 (en) * | 2008-11-10 | 2014-05-13 | Hitachi, Ltd. | Information recording device having high-frequency field generating multilayer material with a receded section disposed between main and opposing poles |
| JP5558698B2 (ja) | 2008-11-28 | 2014-07-23 | 株式会社東芝 | 磁気記録ヘッド、磁気ヘッドアセンブリ、磁気記録装置及び磁気記録方法 |
| US8139319B2 (en) * | 2009-02-23 | 2012-03-20 | Hitachi Global Storage Technologies Netherlands B.V | Perpendicular magnetic recording system with magnetic precession for fast switching of perpendicular write pole magnetization |
| US8053255B2 (en) * | 2009-03-03 | 2011-11-08 | Seagate Technology Llc | STRAM with compensation element and method of making the same |
| 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 |
| US8228632B2 (en) * | 2009-05-20 | 2012-07-24 | Seagate Technology Llc | Transducing head design for microwave assisted magnetic recording |
| US8422159B2 (en) * | 2009-06-04 | 2013-04-16 | Seagate Technology Llc | Microwave-assisted magnetic recording with collocated microwave and write fields |
| KR101616042B1 (ko) * | 2009-07-23 | 2016-04-27 | 삼성전자주식회사 | 자구벽을 이용한 발진기 및 그 동작방법 |
| 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 |
| 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 |
| 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 |
| JP4818426B2 (ja) * | 2009-11-27 | 2011-11-16 | 株式会社東芝 | ヘッド駆動制御装置、磁気ディスク装置及びヘッド駆動制御方法 |
| US7982996B2 (en) * | 2009-12-07 | 2011-07-19 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording write head and system with improved spin torque oscillator for microwave-assisted magnetic recording |
| US8199553B2 (en) * | 2009-12-17 | 2012-06-12 | Hitachi Global Storage Technologies Netherlands B.V. | Multilevel frequency addressable field driven MRAM |
| JP5515044B2 (ja) * | 2010-01-07 | 2014-06-11 | 学校法人 工学院大学 | 磁気記録装置 |
| JP5658470B2 (ja) * | 2010-03-04 | 2015-01-28 | 株式会社日立製作所 | 高周波アシスト磁気記録ヘッドおよびそれを用いた磁気記録再生装置 |
| JP2011198399A (ja) * | 2010-03-17 | 2011-10-06 | Toshiba Corp | 磁気記録ヘッド、磁気ヘッドアセンブリ、及び磁気記録再生装置 |
| JP2011210332A (ja) * | 2010-03-30 | 2011-10-20 | Toshiba Corp | 磁気ヘッド、およびこれを備えたディスク装置 |
| JP4951095B2 (ja) | 2010-06-30 | 2012-06-13 | 株式会社東芝 | 磁気記録ヘッド及び磁気記録装置 |
| JP5787524B2 (ja) * | 2011-01-07 | 2015-09-30 | 株式会社東芝 | 記録ヘッド、磁気ヘッドアセンブリ、及び磁気記録装置 |
| US8634163B2 (en) | 2011-07-27 | 2014-01-21 | HGST Netherlands B.V. | Dual reverse microwave assisted magnetic recording (MAMR) and systems thereof |
| US8553362B2 (en) | 2011-09-06 | 2013-10-08 | HGST Netherlands B.V. | Magnetic recording head with adjacent track interference suppresion by novel microwave-assisted magnetic recording element |
| JP5892771B2 (ja) * | 2011-11-16 | 2016-03-23 | 株式会社東芝 | 高周波磁界発生素子、磁気ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| JP2012104217A (ja) * | 2011-12-15 | 2012-05-31 | Toshiba Corp | 磁気ヘッド、およびこれを備えたディスク装置 |
| US8937783B2 (en) * | 2011-12-21 | 2015-01-20 | HGST Netherlands B.V. | Magnetic data recording system with improved servo capability for bit patterned recording |
| JP5606482B2 (ja) | 2012-03-26 | 2014-10-15 | 株式会社東芝 | 磁気ヘッド、磁気ヘッドアセンブリ、磁気記録再生装置及び磁気ヘッドの製造方法 |
| JP5889733B2 (ja) * | 2012-06-29 | 2016-03-22 | 株式会社東芝 | 磁気記録ヘッド、およびこれを備えたディスク装置 |
| US8582240B1 (en) | 2012-08-29 | 2013-11-12 | Headway Technologies, Inc. | Magnetic recording assisted by spin torque oscillator with a radio frequency current bias |
| US8879205B2 (en) * | 2012-11-13 | 2014-11-04 | HGST Netherlands B.V. | High spin-torque efficiency spin-torque oscillator (STO) with dual spin polarization layer |
| US9047887B2 (en) * | 2013-07-12 | 2015-06-02 | Kabushiki Kaisha Toshiba | Magnetic recording head and disk apparatus with the same |
| JP2013251042A (ja) * | 2013-07-19 | 2013-12-12 | Toshiba Corp | スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 |
| US9047894B2 (en) | 2013-10-03 | 2015-06-02 | HGST Netherlands B.V. | Magnetic write head having spin torque oscillator that is self aligned with write pole |
| US9064508B1 (en) * | 2014-03-17 | 2015-06-23 | HGST Netherlands B.V. | Pile spin-torque oscillator with AF-mode oscillation for generating high AC-field in microwave-assisted magnetic recording |
| JP2015197940A (ja) * | 2014-04-02 | 2015-11-09 | Tdk株式会社 | 磁気ヘッド、磁気ヘッドアセンブリ及び磁気記録再生装置 |
| US9286916B1 (en) | 2014-08-26 | 2016-03-15 | Seagate Technology Llc | High frequency data writer field generator device |
| US9142227B1 (en) | 2014-09-08 | 2015-09-22 | HGST Netherlands B.V. | Microwave assisted magnetic recording (MAMR) write head and system |
| US9305574B1 (en) * | 2014-09-23 | 2016-04-05 | HGST Netherlands B.V. | Negative-polarization spin-torque-oscillator |
| US9099113B1 (en) | 2014-11-15 | 2015-08-04 | HGST Netherlands B.V. | Slider with spin-torque oscillator (STO) and STO corrosion monitor |
| CN106558321A (zh) * | 2015-09-25 | 2017-04-05 | Hgst荷兰有限公司 | 负极化自旋转矩振荡器 |
| US9495979B1 (en) | 2015-09-30 | 2016-11-15 | Seagate Technology Llc | Magnetic recording head front shield formation |
| JP2017091596A (ja) * | 2015-11-13 | 2017-05-25 | 株式会社東芝 | ディスク装置および記録ヘッドの駆動方法 |
| US9640203B1 (en) | 2016-02-23 | 2017-05-02 | Seagate Technology Llc | Multi-frequency microwave assisted magnetic recording apparatus and method |
| US10366714B1 (en) | 2016-04-28 | 2019-07-30 | Western Digital Technologies, Inc. | Magnetic write head for providing spin-torque-assisted write field enhancement |
| JP2018049676A (ja) | 2016-09-23 | 2018-03-29 | 株式会社東芝 | 高周波アシスト磁気記録ヘッド、磁気ヘッドアセンブリ、及び磁気記録再生装置 |
| US10460752B2 (en) | 2016-12-08 | 2019-10-29 | Western Digital Technologies, Inc. | Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head |
| US10424323B1 (en) | 2016-12-30 | 2019-09-24 | Western Digital Technologies, Inc. | High-bandwidth STO bias architecture with integrated slider voltage potential control |
| US10388305B1 (en) | 2016-12-30 | 2019-08-20 | Western Digital Technologies, Inc. | Apparatus and method for writing to magnetic media using an AC bias current to enhance the write field |
| US10325618B1 (en) | 2018-07-17 | 2019-06-18 | Headway Technologies, Inc. | Perpendicular magnetic recording (PMR) writer with one or more spin flipping elements in the gap |
| US10950257B2 (en) | 2018-11-14 | 2021-03-16 | Headway Technologies, Inc. | Process of forming a recessed spin flipping element in the write gap |
| US10446178B1 (en) | 2018-11-14 | 2019-10-15 | Headway Technologies, Inc. | Writer with recessed spin flipping element in the write gap |
| US10522174B1 (en) | 2018-11-21 | 2019-12-31 | Headway Technologies, Inc. | Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application |
| US10424326B1 (en) | 2018-11-21 | 2019-09-24 | Headway Technologies, Inc. | Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application |
| US10490216B1 (en) | 2018-12-04 | 2019-11-26 | Headway Technologies, Inc. | Magnetic flux guiding device with antiferromagnetically coupled (AFC) oscillator in assisted writing application |
| US10699731B1 (en) * | 2019-01-17 | 2020-06-30 | Headway Technologies, Inc. | Permanent magnet assisted magnetic recording |
| US10997993B1 (en) | 2019-03-22 | 2021-05-04 | Western Digital Technologies, Inc. | Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head |
| US10559318B1 (en) | 2019-03-29 | 2020-02-11 | Headway Technologies, Inc. | Magnetic recording assisted by a single spin hall effect (SHE) layer in the write gap |
| US10580441B1 (en) | 2019-03-29 | 2020-03-03 | Headway Technologies, Inc. | Magnetic recording assisted by two spin hall effect (SHE) layers in the write gap |
| US10811034B1 (en) | 2019-04-01 | 2020-10-20 | Headway Technologies, Inc. | Heat sink structure for microwave-assisted magnetic recording (MAMR) head |
| US10714129B1 (en) | 2019-04-02 | 2020-07-14 | Headway Technologies, Inc. | Writer with recessed spin flipping element in the main pole surrounding gap |
| US11011190B2 (en) | 2019-04-24 | 2021-05-18 | Western Digital Technologies, Inc. | Magnetic write head with write-field enhancement structure including a magnetic notch |
| US10957346B2 (en) | 2019-05-03 | 2021-03-23 | Western Digital Technologies, Inc. | Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses |
| US11087784B2 (en) | 2019-05-03 | 2021-08-10 | Western Digital Technologies, Inc. | Data storage devices with integrated slider voltage potential control |
| US10714132B1 (en) | 2019-06-25 | 2020-07-14 | Headway Technologies, Inc. | Magnetic flux guiding devices all around main pole design without leading shield and side shields in assisted writing applications |
| US10714127B1 (en) | 2019-06-25 | 2020-07-14 | Headway Technologies, Inc. | Shape designs of magnetic flux guiding devices all around the main pole in assisted writing applications |
| US11355141B2 (en) | 2019-07-10 | 2022-06-07 | Headway Technologies, Inc. | Writer with narrower high moment trailing shield |
| US11205447B2 (en) | 2019-08-21 | 2021-12-21 | Headway Technologies, Inc. | Reader noise reduction using spin hall effects |
| US11043234B2 (en) | 2019-08-21 | 2021-06-22 | Headway Technologies, Inc. | Spin transfer torque oscillator (STO) with spin torque injection to a flux generating layer (FGL) from two sides |
| US10770104B1 (en) | 2019-09-06 | 2020-09-08 | Headway Technologies, Inc. | Alternative designs for magnetic recording assisted by a single spin hall effect (SHE) layer in the write gap |
| US10714136B1 (en) | 2019-09-06 | 2020-07-14 | Headway Technologies, Inc. | Alternative designs for magnetic recording assisted by two spin hall effect (SHE) layers in the write gap |
| US11189304B2 (en) | 2019-09-06 | 2021-11-30 | Headway Technologies, Inc. | Spin injection assisted magnetic recording |
| US10861084B1 (en) | 2019-10-04 | 2020-12-08 | Coupa Software Incorporated | Method and computer-readable media for real-time image-based catalog search |
| US10748562B1 (en) | 2019-11-12 | 2020-08-18 | Headway Technologies, Inc. | Third alternative design for magnetic recording assisted by one or two spin hall effect (SHE) layers in the write gap |
| US11011193B1 (en) | 2020-02-04 | 2021-05-18 | Headway Technologies, Inc. | Dual flux change layer (FCL) assisted magnetic recording |
| US11043232B1 (en) | 2020-02-04 | 2021-06-22 | Headway Technologies, Inc. | Spin torque reversal assisted magnetic recording (STRAMR) device having a width substantially equal to that of a traililng shield |
| US10937450B1 (en) | 2020-07-13 | 2021-03-02 | Headway Technologies, Inc. | Magnetic flux guiding device with spin torque oscillator (STO) film having one or more negative spin polarization layers in assisted writing application |
| US11295768B1 (en) | 2020-09-23 | 2022-04-05 | Headway Technologies, Inc. | Writer with laterally graded spin layer MsT |
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| JP7741710B2 (ja) * | 2021-12-06 | 2025-09-18 | 株式会社東芝 | 磁気ヘッド及び磁気記録装置 |
| US11894026B1 (en) | 2022-06-21 | 2024-02-06 | Western Digital Technologies, Inc. | Magnetic recording head having leads over the trailing shield for assisting electric currents |
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| CN1034444A (zh) * | 1988-11-28 | 1989-08-02 | 成都新技术应用研究所 | 一种兼作抹音(像)/偏磁振荡器的磁头 |
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| JP2006269885A (ja) * | 2005-03-25 | 2006-10-05 | Sony Corp | スピン注入型磁気抵抗効果素子 |
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| US8929030B2 (en) * | 2007-03-15 | 2015-01-06 | Seagate Technology Llc | Magnetic writer for field assisted magnetic recording |
| KR20080108016A (ko) * | 2007-06-07 | 2008-12-11 | 가부시끼가이샤 도시바 | 자기 기록 헤드 및 자기 기록 장치 |
| US7855853B2 (en) * | 2007-06-20 | 2010-12-21 | Seagate Technology Llc | Magnetic write device with a cladded write assist element |
| US7983002B2 (en) * | 2007-06-26 | 2011-07-19 | Seagate Technology Llc | Wire-assisted magnetic write device with a gapped trailing shield |
| US8098455B2 (en) * | 2007-06-27 | 2012-01-17 | Seagate Technology Llc | Wire-assisted magnetic write device with phase shifted current |
| JP4358279B2 (ja) * | 2007-08-22 | 2009-11-04 | 株式会社東芝 | 磁気記録ヘッド及び磁気記録装置 |
| JP4919901B2 (ja) * | 2007-09-04 | 2012-04-18 | 株式会社東芝 | 磁気記録ヘッド及び磁気記録装置 |
| JP4929108B2 (ja) * | 2007-09-25 | 2012-05-09 | 株式会社東芝 | 磁気ヘッドおよび磁気記録装置 |
| JP2009080875A (ja) * | 2007-09-25 | 2009-04-16 | Toshiba Corp | 磁気ヘッド及び磁気記録装置 |
| JP2009080878A (ja) * | 2007-09-25 | 2009-04-16 | Toshiba Corp | 磁気記録ヘッドおよび磁気記録装置 |
-
2006
- 2006-12-06 US US11/634,767 patent/US7724469B2/en not_active Expired - Fee Related
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2007
- 2007-12-05 JP JP2007314441A patent/JP5372361B2/ja not_active Expired - Fee Related
- 2007-12-05 CN CN2007101988422A patent/CN101206865B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101206865A (zh) | 2008-06-25 |
| JP2008176908A (ja) | 2008-07-31 |
| CN101206865B (zh) | 2011-03-30 |
| US7724469B2 (en) | 2010-05-25 |
| US20080137224A1 (en) | 2008-06-12 |
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