CN100517465C - 磁传感器 - Google Patents
磁传感器 Download PDFInfo
- Publication number
- CN100517465C CN100517465C CNB031022367A CN03102236A CN100517465C CN 100517465 C CN100517465 C CN 100517465C CN B031022367 A CNB031022367 A CN B031022367A CN 03102236 A CN03102236 A CN 03102236A CN 100517465 C CN100517465 C CN 100517465C
- Authority
- CN
- China
- Prior art keywords
- layer
- mentioned
- magnetic
- magnetoresistance effect
- effect film
- 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
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
- G11B5/3903—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 using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
-
- 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
- G11B5/3903—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 using magnetic thin film layers or their effects, the films being part of integrated structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002313622 | 2002-10-29 | ||
JP2002313622A JP2004152334A (ja) | 2002-10-29 | 2002-10-29 | 磁気センサ及びその製造方法、並びにこれを搭載した磁気記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1494060A CN1494060A (zh) | 2004-05-05 |
CN100517465C true CN100517465C (zh) | 2009-07-22 |
Family
ID=32089484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031022367A Expired - Fee Related CN100517465C (zh) | 2002-10-29 | 2003-01-30 | 磁传感器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7274542B2 (zh) |
EP (1) | EP1416474A3 (zh) |
JP (1) | JP2004152334A (zh) |
CN (1) | CN100517465C (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3961496B2 (ja) | 2003-04-18 | 2007-08-22 | アルプス電気株式会社 | Cpp型巨大磁気抵抗効果ヘッド |
JP3974587B2 (ja) | 2003-04-18 | 2007-09-12 | アルプス電気株式会社 | Cpp型巨大磁気抵抗効果ヘッド |
JP3961497B2 (ja) * | 2003-04-18 | 2007-08-22 | アルプス電気株式会社 | Cpp型巨大磁気抵抗効果ヘッド |
US7323113B2 (en) * | 2003-11-20 | 2008-01-29 | Uchicago Argonne, Llc | Pattern transfer with self-similar sacrificial mask layer and vector magnetic field sensor |
US7295406B2 (en) * | 2004-07-22 | 2007-11-13 | Hitachi Global Storage Technologies Netherlands B.V. | Narrow track extraordinary magneto resistive [EMR] device |
JP2006085794A (ja) * | 2004-09-15 | 2006-03-30 | Hitachi Global Storage Technologies Netherlands Bv | 磁気抵抗効果型ヘッドおよびその製造方法、記録再生分離型磁気ヘッド |
JP2006086275A (ja) | 2004-09-15 | 2006-03-30 | Tdk Corp | 磁気抵抗効果素子、薄膜磁気ヘッド、ヘッドジンバルアセンブリ、およびハードディスク装置 |
JP2006114530A (ja) * | 2004-10-12 | 2006-04-27 | Alps Electric Co Ltd | 磁気検出素子、およびその製造方法 |
JP2006179051A (ja) | 2004-12-21 | 2006-07-06 | Hitachi Global Storage Technologies Netherlands Bv | 磁気抵抗センサ及びその製造方法 |
JP2008084446A (ja) * | 2006-09-28 | 2008-04-10 | Fujitsu Ltd | 磁気ヘッドおよびその製造方法 |
US9196270B1 (en) | 2006-12-07 | 2015-11-24 | Western Digital (Fremont), Llc | Method for providing a magnetoresistive element having small critical dimensions |
WO2009044447A1 (ja) * | 2007-10-02 | 2009-04-09 | Fujitsu Limited | 磁気抵抗効果型ヘッドの製造方法 |
US8316527B2 (en) * | 2008-04-01 | 2012-11-27 | Western Digital (Fremont), Llc | Method for providing at least one magnetoresistive device |
JP2010055657A (ja) * | 2008-08-26 | 2010-03-11 | Hitachi Global Storage Technologies Netherlands Bv | Cpp構造磁気抵抗効果型ヘッド |
JP2010123212A (ja) * | 2008-11-20 | 2010-06-03 | Hitachi Global Storage Technologies Netherlands Bv | 垂直電流型再生磁気ヘッド及びその製造方法 |
US8125746B2 (en) * | 2009-07-13 | 2012-02-28 | Seagate Technology Llc | Magnetic sensor with perpendicular anisotrophy free layer and side shields |
CN102201243B (zh) * | 2010-03-23 | 2015-04-22 | 新科实业有限公司 | 磁阻传感器、磁头、磁头折片组合及硬盘驱动器 |
US20160189468A1 (en) * | 2014-11-14 | 2016-06-30 | Jamie Abahamson | Random outcome customer awards |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5729410A (en) | 1996-11-27 | 1998-03-17 | International Business Machines Corporation | Magnetic tunnel junction device with longitudinal biasing |
US5898548A (en) * | 1997-10-24 | 1999-04-27 | International Business Machines Corporation | Shielded magnetic tunnel junction magnetoresistive read head |
JPH11175928A (ja) * | 1997-12-15 | 1999-07-02 | Hitachi Ltd | 磁気抵抗効果ヘッド及び磁気記録再生装置 |
US6542342B1 (en) * | 1998-11-30 | 2003-04-01 | Nec Corporation | Magnetoresistive effect transducer having longitudinal bias layer directly connected to free layer |
JP2001006130A (ja) * | 1999-06-24 | 2001-01-12 | Tdk Corp | トンネル磁気抵抗効果型ヘッド |
US6381094B1 (en) * | 1999-07-23 | 2002-04-30 | Hardayal Singh Gill | Shield structure with a heat sink layer for dissipating heat from a read sensor |
JP3971140B2 (ja) * | 2001-08-14 | 2007-09-05 | Tdk株式会社 | 磁気抵抗効果素子並びにこれを用いた磁気ヘッド及びヘッドサスペンションアセンブリ |
-
2002
- 2002-10-29 JP JP2002313622A patent/JP2004152334A/ja active Pending
-
2003
- 2003-01-23 EP EP03001552A patent/EP1416474A3/en not_active Withdrawn
- 2003-01-30 CN CNB031022367A patent/CN100517465C/zh not_active Expired - Fee Related
- 2003-02-05 US US10/358,179 patent/US7274542B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1494060A (zh) | 2004-05-05 |
US20040080873A1 (en) | 2004-04-29 |
EP1416474A2 (en) | 2004-05-06 |
US7274542B2 (en) | 2007-09-25 |
JP2004152334A (ja) | 2004-05-27 |
EP1416474A3 (en) | 2005-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN LTD. Free format text: FORMER OWNER: HITACHI CO., LTD. Effective date: 20050415 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20050415 Address after: Kanagawa Applicant after: Hitachi Global Scinece Technology Jappan Co., Ltd. Address before: Tokyo, Japan, Japan Applicant before: Hitachi Ltd. |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20160130 |
|
EXPY | Termination of patent right or utility model |