WO1999056074A3 - Element comprising a layer structure and a current-directing means - Google Patents

Element comprising a layer structure and a current-directing means Download PDF

Info

Publication number
WO1999056074A3
WO1999056074A3 PCT/IB1999/000643 IB9900643W WO9956074A3 WO 1999056074 A3 WO1999056074 A3 WO 1999056074A3 IB 9900643 W IB9900643 W IB 9900643W WO 9956074 A3 WO9956074 A3 WO 9956074A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer structure
current
main faces
directing means
zone
Prior art date
Application number
PCT/IB1999/000643
Other languages
French (fr)
Other versions
WO1999056074A2 (en
Inventor
Kars-Michiel H Lenssen
Original Assignee
Koninkl Philips Electronics Nv
Philips Svenska Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv, Philips Svenska Ab filed Critical Koninkl Philips Electronics Nv
Priority to JP55387099A priority Critical patent/JP2002511198A/en
Priority to AT99910623T priority patent/ATE300035T1/en
Priority to DE69926191T priority patent/DE69926191T2/en
Priority to KR1019997012127A priority patent/KR100733857B1/en
Priority to EP99910623A priority patent/EP0991913B1/en
Publication of WO1999056074A2 publication Critical patent/WO1999056074A2/en
Publication of WO1999056074A3 publication Critical patent/WO1999056074A3/en

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
    • G11B5/33—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
    • 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
    • G11B5/3906—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
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G11C11/165—Auxiliary circuits
    • G11C11/1659—Cell access
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G11C11/165—Auxiliary circuits
    • G11C11/1673—Reading or sensing circuits or methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G11C11/165—Auxiliary circuits
    • G11C11/1675—Writing or programming circuits or methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers
    • 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
    • G11B2005/3996—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 large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer

Abstract

Element comprising a substrate (101) having a layer structure (103) bounded by two parallel main faces (105a, 105b) with at least two layers of mutually different magnetical behavior. The layer structure has a zone (109) which, viewed in a direction parallel to the main faces, extends between spaced electric connection areas (107a, 107b). A current-directing means is present in this zone for producing, during current passage, a current component (cp) directed transversely to the layer structure, which means comprises at least one electric conductor (111a, 111b) on at least one of the main faces.
PCT/IB1999/000643 1998-04-24 1999-04-12 Element comprising a layer structure and a current-directing means WO1999056074A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55387099A JP2002511198A (en) 1998-04-24 1999-04-12 Device with layer structure and current directing means
AT99910623T ATE300035T1 (en) 1998-04-24 1999-04-12 ELEMENT WITH LAYER STRUCTURE AND CURRENT ORIENTOR
DE69926191T DE69926191T2 (en) 1998-04-24 1999-04-12 ELEMENT WITH LAYER STRUCTURE AND POWER SUPPORT
KR1019997012127A KR100733857B1 (en) 1998-04-24 1999-04-12 Magnetoresistive element comprising a layer structure and a current-directing means
EP99910623A EP0991913B1 (en) 1998-04-24 1999-04-12 Element comprising a layer structure and a current-directing means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98201343.5 1998-04-24
EP98201343 1998-04-24

Publications (2)

Publication Number Publication Date
WO1999056074A2 WO1999056074A2 (en) 1999-11-04
WO1999056074A3 true WO1999056074A3 (en) 2000-02-03

Family

ID=8233649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/000643 WO1999056074A2 (en) 1998-04-24 1999-04-12 Element comprising a layer structure and a current-directing means

Country Status (7)

Country Link
US (1) US6215301B1 (en)
EP (1) EP0991913B1 (en)
JP (1) JP2002511198A (en)
KR (1) KR100733857B1 (en)
AT (1) ATE300035T1 (en)
DE (1) DE69926191T2 (en)
WO (1) WO1999056074A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6727696B2 (en) * 1998-03-06 2004-04-27 Baker Hughes Incorporated Downhole NMR processing
US7301338B2 (en) * 2001-08-13 2007-11-27 Baker Hughes Incorporated Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis
US7068530B2 (en) * 2002-12-27 2006-06-27 Tdk Corporation Magnetoresistive effect element and memory device using the same
JP4596753B2 (en) * 2003-06-26 2010-12-15 株式会社日立グローバルストレージテクノロジーズ Magnetic head and magnetic recording / reproducing apparatus
US7196516B2 (en) * 2004-08-16 2007-03-27 Baker Hughes Incorporated Correction of NMR artifacts due to constant-velocity axial motion and spin-lattice relaxation
US7173841B2 (en) * 2004-12-03 2007-02-06 Taiwan Semiconductor Manufacturing Company, Ltd. Magnetic memory array

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474833A (en) * 1993-03-19 1995-12-12 Thomson-Csf Magnetoresistive transducer and method of manufacture
DE19534856A1 (en) * 1995-09-20 1997-03-27 Forschungszentrum Juelich Gmbh Digital memory device with spin coupled magnetic layer for read=out and/or write operation
US5627704A (en) * 1996-02-12 1997-05-06 Read-Rite Corporation Thin film giant magnetoresistive CPP transducer with flux guide yoke structure
US5636093A (en) * 1994-10-05 1997-06-03 U.S. Philips Corporation Magnetic multilayer device having resonant-tunneling double-barrier structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024489A (en) * 1975-11-18 1977-05-17 International Business Machines Corporation Magnetoresistive sandwich including sensor electrically parallel with electrical shunt and magnetic biasing layers
US5432373A (en) * 1992-12-15 1995-07-11 Bell Communications Research, Inc. Magnetic spin transistor
EP0766831A1 (en) * 1994-06-18 1997-04-09 The University Of Sheffield Magnetic field responsive device
US5576914A (en) 1994-11-14 1996-11-19 Read-Rite Corporation Compact read/write head having biased GMR element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474833A (en) * 1993-03-19 1995-12-12 Thomson-Csf Magnetoresistive transducer and method of manufacture
US5636093A (en) * 1994-10-05 1997-06-03 U.S. Philips Corporation Magnetic multilayer device having resonant-tunneling double-barrier structure
DE19534856A1 (en) * 1995-09-20 1997-03-27 Forschungszentrum Juelich Gmbh Digital memory device with spin coupled magnetic layer for read=out and/or write operation
US5627704A (en) * 1996-02-12 1997-05-06 Read-Rite Corporation Thin film giant magnetoresistive CPP transducer with flux guide yoke structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M.A.M. GIJS ET AL.: "Perpendicular giant magnetoresistance ov Co/Cu multilayers deposited under an angel on grooved substates", APP. PHYS. LETT., vol. 66, no. 14, April 1995 (1995-04-01), pages 1839 - 1841, XP000560670 *

Also Published As

Publication number Publication date
KR100733857B1 (en) 2007-06-29
ATE300035T1 (en) 2005-08-15
WO1999056074A2 (en) 1999-11-04
EP0991913B1 (en) 2005-07-20
JP2002511198A (en) 2002-04-09
DE69926191T2 (en) 2006-06-01
EP0991913A2 (en) 2000-04-12
US6215301B1 (en) 2001-04-10
KR20010014090A (en) 2001-02-26
DE69926191D1 (en) 2005-08-25

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