CN1144183C - 屏蔽式磁性隧道结磁电阻读出磁头 - Google Patents
屏蔽式磁性隧道结磁电阻读出磁头 Download PDFInfo
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- CN1144183C CN1144183C CNB981194036A CN98119403A CN1144183C CN 1144183 C CN1144183 C CN 1144183C CN B981194036 A CNB981194036 A CN B981194036A CN 98119403 A CN98119403 A CN 98119403A CN 1144183 C CN1144183 C CN 1144183C
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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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only 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
- G11B5/127—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
-
- 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
- G11B5/3909—Arrangements using a magnetic tunnel junction
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Hall/Mr Elements (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Thin Magnetic Films (AREA)
Abstract
Description
Claims (26)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US957,787 | 1978-11-06 | ||
US957787 | 1978-11-06 | ||
US08/957,787 US5898548A (en) | 1997-10-24 | 1997-10-24 | Shielded magnetic tunnel junction magnetoresistive read head |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1223431A CN1223431A (zh) | 1999-07-21 |
CN1144183C true CN1144183C (zh) | 2004-03-31 |
Family
ID=25500133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB981194036A Expired - Fee Related CN1144183C (zh) | 1997-10-24 | 1998-09-30 | 屏蔽式磁性隧道结磁电阻读出磁头 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5898548A (zh) |
EP (1) | EP0911811B1 (zh) |
JP (2) | JP3300291B2 (zh) |
KR (1) | KR100295288B1 (zh) |
CN (1) | CN1144183C (zh) |
DE (1) | DE69835410T2 (zh) |
MY (1) | MY116285A (zh) |
SG (1) | SG67574A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1326116C (zh) * | 2004-04-02 | 2007-07-11 | Tdk株式会社 | 复合型薄膜磁头 |
Families Citing this family (127)
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US6084752A (en) * | 1996-02-22 | 2000-07-04 | Matsushita Electric Industrial Co., Ltd. | Thin film magnetic head |
US5869963A (en) * | 1996-09-12 | 1999-02-09 | Alps Electric Co., Ltd. | Magnetoresistive sensor and head |
JPH11175920A (ja) * | 1997-12-05 | 1999-07-02 | Nec Corp | 磁気抵抗効果型複合ヘッドおよびその製造方法 |
US6169303B1 (en) * | 1998-01-06 | 2001-01-02 | Hewlett-Packard Company | Ferromagnetic tunnel junctions with enhanced magneto-resistance |
JPH11316919A (ja) * | 1998-04-30 | 1999-11-16 | Hitachi Ltd | スピントンネル磁気抵抗効果型磁気ヘッド |
JP4316806B2 (ja) * | 1998-05-11 | 2009-08-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 磁気多重層センサ |
US6052263A (en) * | 1998-08-21 | 2000-04-18 | International Business Machines Corporation | Low moment/high coercivity pinned layer for magnetic tunnel junction sensors |
US6552882B1 (en) * | 1998-09-01 | 2003-04-22 | Nec Corporation | Information reproduction head apparatus and information recording/reproduction system |
JP3473939B2 (ja) * | 1998-10-13 | 2003-12-08 | Tdk株式会社 | 薄膜磁気ヘッドおよびその製造方法 |
US6185079B1 (en) | 1998-11-09 | 2001-02-06 | International Business Machines Corporation | Disk drive with thermal asperity reduction circuitry using a magnetic tunnel junction sensor |
US6795280B1 (en) | 1998-11-18 | 2004-09-21 | Seagate Technology Llc | Tunneling magneto-resistive read head with two-piece free layer |
US6178074B1 (en) * | 1998-11-19 | 2001-01-23 | International Business Machines Corporation | Double tunnel junction with magnetoresistance enhancement layer |
US6542342B1 (en) * | 1998-11-30 | 2003-04-01 | Nec Corporation | Magnetoresistive effect transducer having longitudinal bias layer directly connected to free layer |
US6411478B1 (en) | 1999-02-11 | 2002-06-25 | Seagate Technology Llc | Spin tunnel junction recording heads using an edge junction structure with CIP |
US6181537B1 (en) * | 1999-03-29 | 2001-01-30 | International Business Machines Corporation | Tunnel junction structure with junction layer embedded in amorphous ferromagnetic layers |
US6256178B1 (en) * | 1999-03-29 | 2001-07-03 | International Business Machines Corporation | Biasing for tunnel junction head |
JP3592140B2 (ja) | 1999-07-02 | 2004-11-24 | Tdk株式会社 | トンネル磁気抵抗効果型ヘッド |
US6510030B1 (en) | 1999-08-17 | 2003-01-21 | Seagate Technology, Llc | Transducing head and method for forming a recessed shield for a transducing head |
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US6493195B1 (en) * | 1999-09-01 | 2002-12-10 | Nec Corporation | Magnetoresistance element, with lower electrode anti-erosion/flaking layer |
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-
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- 1998-09-15 KR KR1019980037936A patent/KR100295288B1/ko not_active IP Right Cessation
- 1998-09-22 MY MYPI98004347A patent/MY116285A/en unknown
- 1998-09-30 CN CNB981194036A patent/CN1144183C/zh not_active Expired - Fee Related
- 1998-10-12 JP JP28902098A patent/JP3300291B2/ja not_active Expired - Fee Related
- 1998-10-15 SG SG1998004212A patent/SG67574A1/en unknown
- 1998-10-20 DE DE69835410T patent/DE69835410T2/de not_active Expired - Fee Related
- 1998-10-20 EP EP98308587A patent/EP0911811B1/en not_active Expired - Lifetime
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CN1326116C (zh) * | 2004-04-02 | 2007-07-11 | Tdk株式会社 | 复合型薄膜磁头 |
US7274539B2 (en) | 2004-04-02 | 2007-09-25 | Tdk Corporation | Composite type thin film magnetic head having a low parasitic capacitance between a write coil and an upper read head shield |
Also Published As
Publication number | Publication date |
---|---|
CN1223431A (zh) | 1999-07-21 |
DE69835410T2 (de) | 2007-08-09 |
EP0911811A3 (en) | 1999-10-27 |
US5898548A (en) | 1999-04-27 |
DE69835410D1 (de) | 2006-09-14 |
JP3300291B2 (ja) | 2002-07-08 |
MY116285A (en) | 2003-12-31 |
EP0911811B1 (en) | 2006-08-02 |
JPH11213351A (ja) | 1999-08-06 |
KR100295288B1 (ko) | 2001-10-26 |
EP0911811A2 (en) | 1999-04-28 |
JP2002304711A (ja) | 2002-10-18 |
SG67574A1 (en) | 1999-09-21 |
KR19990036637A (ko) | 1999-05-25 |
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