ES2121813T3 - Cabezal magnetico combinado de lectura/escritura. - Google Patents
Cabezal magnetico combinado de lectura/escritura.Info
- Publication number
- ES2121813T3 ES2121813T3 ES92201355T ES92201355T ES2121813T3 ES 2121813 T3 ES2121813 T3 ES 2121813T3 ES 92201355 T ES92201355 T ES 92201355T ES 92201355 T ES92201355 T ES 92201355T ES 2121813 T3 ES2121813 T3 ES 2121813T3
- Authority
- ES
- Spain
- Prior art keywords
- head
- write
- flux guide
- read
- write head
- 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 - Lifetime
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
- G11B5/127—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
- G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
- G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
- G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
- G11B5/3925—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure the two parts being 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
-
- 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
- G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
-
- 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
- G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
-
- 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
- G11B5/33—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
-
- 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
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
SE INVENTA UN CABEZAL MAGNETICO COMBINADO DE LECTURA/ESCRITURA (210) EN EL QUE EL CABEZAL DE LECTURA INCLUYE UN ELEMENTO MAGNETORESISTENTE (MRE) (250) SUPERPUESTO A UN SUBSTRATO (220) DE MATERIAL MAGNETICAMENTE IMPERMEABLE SUBSTANCIALMENTE, UNA GUIA DE FLUJO ROTA (DISCONTINUA) (280 A,B) SUPERPUESTA AL MRE Y UNA GUIA DE FLUJO CONTINUA (320) SUPERPUESTA A LA GUIA DE FLUJO ROTA. EL CABEZAL DE ESCRITURA DEL CABEZAL MAGNETICO COMBINADO DE LECTURA/ESCRITURA SOLAPA EL CABEZAL DE LECTURA Y COMPARTE LA GUIA DE FLUJO CONTINUO CON EL CABEZAL DE LECTURA, SIRVIENDO LA GUIA DE FLUJO CONTINUO COMO UN POLO INFERIOR DEL CABEZAL DE ESCRITURA. SIGNIFICATIVAMENTE, LAS DIMENSIONES DE LOS DIFERENTES ELEMENTOS DEL CABEZAL MAGNETICO COMBINADO DE LECTURA/ESCRITURA SE ELIGEN DE TAL FORMA QUE EL RELATIVAMENTE POCO FLUJO MAGNETICO PRODUCIDO POR EL CABEZAL DE ESCRITURA DURANTE LA ESCRITURA, O AL INTRODUCIR EL CABEZAL DE ESCRITURA DURANTE LA LECTURA, SE COMUNICA A TRAVES DE LA GUIA DE FLUJO COMPARTIDO CONE EL MRE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70353991A | 1991-05-21 | 1991-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2121813T3 true ES2121813T3 (es) | 1998-12-16 |
Family
ID=24825785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92201355T Expired - Lifetime ES2121813T3 (es) | 1991-05-21 | 1992-05-12 | Cabezal magnetico combinado de lectura/escritura. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5905610A (es) |
EP (1) | EP0514976B1 (es) |
JP (1) | JPH05151536A (es) |
KR (1) | KR100280300B1 (es) |
AT (1) | ATE169763T1 (es) |
DE (1) | DE69226562T2 (es) |
ES (1) | ES2121813T3 (es) |
MY (1) | MY107733A (es) |
TW (1) | TW214009B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5269895A (en) * | 1991-05-21 | 1993-12-14 | North American Philips Corporation | Method of making composite structure with single domain magnetic element |
JPH04351706A (ja) * | 1991-05-30 | 1992-12-07 | Matsushita Electric Ind Co Ltd | 複合型薄膜磁気ヘッド |
US5241439A (en) * | 1991-07-02 | 1993-08-31 | U.S. Philips Corporation | Combined read/write thin film magnetic head with two pairs of flux guides |
US6078479A (en) * | 1993-08-10 | 2000-06-20 | Read-Rite Corporation | Magnetic tape head with flux sensing element |
US6301076B1 (en) * | 1998-03-20 | 2001-10-09 | Seagate Technology Llc | Narrow track inductive write head having a two-piece pole |
US6223420B1 (en) * | 1998-12-04 | 2001-05-01 | International Business Machines Corporation | Method of making a read head with high resistance soft magnetic flux guide layer for enhancing read sensor efficiency |
US6275362B1 (en) * | 1999-07-30 | 2001-08-14 | International Business Machines Corporation | Magnetic read head having spin valve sensor with improved seed layer for a free layer |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921217A (en) * | 1971-12-27 | 1975-11-18 | Ibm | Three-legged magnetic recording head using a magnetorestive element |
US4150408A (en) * | 1975-07-17 | 1979-04-17 | U.S. Philips Corporation | Thin-film magnetic head for reading and writing information |
US4130847A (en) * | 1977-03-31 | 1978-12-19 | International Business Machines Corporation | Corrosion resistant thin film head assembly and method for making |
US4504880A (en) * | 1982-08-09 | 1985-03-12 | International Business Machines Corporation | Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly |
JPS6069806A (ja) * | 1983-09-26 | 1985-04-20 | Sharp Corp | 薄膜磁気ヘッド |
JPS61120318A (ja) * | 1984-11-15 | 1986-06-07 | Matsushita Electric Ind Co Ltd | 一体化薄膜磁気ヘツド |
JPS61177616A (ja) * | 1985-01-30 | 1986-08-09 | Sharp Corp | 薄膜磁気ヘツド |
DE3613619A1 (de) * | 1985-04-26 | 1986-10-30 | Sharp K.K., Osaka | Duennfilm-magnetkopf |
JPS6337811A (ja) * | 1986-07-30 | 1988-02-18 | Toshiba Corp | ヨ−クタイプ磁気抵抗効果型薄膜磁気ヘツド |
US4954920A (en) * | 1986-11-28 | 1990-09-04 | Nec Corporation | Thin film magnetic head |
JP2510541B2 (ja) * | 1986-12-01 | 1996-06-26 | 株式会社日立製作所 | 磁気デイスク用磁気抵抗効果型磁気ヘツド |
US4891725A (en) * | 1987-02-17 | 1990-01-02 | Magnetic Peripherals Inc. | Magnetoresistive sensor having antiferromagnetic exchange-biased ends |
US4803580A (en) * | 1987-02-17 | 1989-02-07 | Magnetic Peripherals Inc. | Double-gap magnetoresistive head having an elongated central write/shield pole completely shielding the magnetoresistive sensor strip in the read gap |
US4907113A (en) * | 1987-07-29 | 1990-03-06 | Digital Equipment Corporation | Three-pole magnetic recording head |
US4860138A (en) * | 1987-11-12 | 1989-08-22 | International Business Machines Corp. | Differentially sensitive single track read/write head design with improved biasing |
JP2761223B2 (ja) * | 1988-09-30 | 1998-06-04 | 株式会社日立製作所 | 記録再生複合ヘッド及びその製造方法 |
JPH02257412A (ja) * | 1988-12-02 | 1990-10-18 | Hitachi Ltd | 磁気記録再生装置およびこれに用いる磁気ヘッド |
JPH0383213A (ja) * | 1989-08-24 | 1991-04-09 | Matsushita Electric Ind Co Ltd | 薄膜磁気ヘッド |
NL8902569A (nl) * | 1989-10-17 | 1991-05-16 | Philips Nv | Dunnefilm magneetkop. |
US5084794A (en) * | 1990-03-29 | 1992-01-28 | Eastman Kodak Company | Shorted dual element magnetoresistive reproduce head exhibiting high density signal amplification |
-
1992
- 1992-03-30 MY MYPI92000546A patent/MY107733A/en unknown
- 1992-04-09 TW TW081102735A patent/TW214009B/zh active
- 1992-05-12 DE DE69226562T patent/DE69226562T2/de not_active Expired - Fee Related
- 1992-05-12 KR KR1019920007966A patent/KR100280300B1/ko not_active IP Right Cessation
- 1992-05-12 AT AT92201355T patent/ATE169763T1/de not_active IP Right Cessation
- 1992-05-12 ES ES92201355T patent/ES2121813T3/es not_active Expired - Lifetime
- 1992-05-12 EP EP92201355A patent/EP0514976B1/en not_active Expired - Lifetime
- 1992-05-19 JP JP4126212A patent/JPH05151536A/ja active Pending
-
1993
- 1993-06-25 US US08/082,895 patent/US5905610A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0514976A2 (en) | 1992-11-25 |
JPH05151536A (ja) | 1993-06-18 |
KR100280300B1 (ko) | 2001-03-02 |
TW214009B (es) | 1993-10-01 |
KR920022206A (ko) | 1992-12-19 |
EP0514976A3 (en) | 1993-03-17 |
EP0514976B1 (en) | 1998-08-12 |
ATE169763T1 (de) | 1998-08-15 |
DE69226562D1 (de) | 1998-09-17 |
MY107733A (en) | 1996-05-30 |
US5905610A (en) | 1999-05-18 |
DE69226562T2 (de) | 1999-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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