KR100978641B1 - 자기 저장 장치용 합성 페리 자성 기준층 - Google Patents

자기 저장 장치용 합성 페리 자성 기준층 Download PDF

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Publication number
KR100978641B1
KR100978641B1 KR1020030013710A KR20030013710A KR100978641B1 KR 100978641 B1 KR100978641 B1 KR 100978641B1 KR 1020030013710 A KR1020030013710 A KR 1020030013710A KR 20030013710 A KR20030013710 A KR 20030013710A KR 100978641 B1 KR100978641 B1 KR 100978641B1
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KR
South Korea
Prior art keywords
magnetic
layer
magnetic material
reference layer
material layers
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Expired - Fee Related
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KR1020030013710A
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English (en)
Korean (ko)
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KR20030074233A (ko
Inventor
샤르마마니쉬
트란룽더
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삼성전자주식회사
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    • 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
    • G11C11/14—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements
    • G11C11/15—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements using multiple magnetic layers
    • 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
    • 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
    • G11C11/161—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 details concerning the memory cell structure, e.g. the layers of the ferromagnetic memory cell
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/3254—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the spacer being semiconducting or insulating, e.g. for spin tunnel junction [STJ]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/3268—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn
    • H01F10/3272—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn by use of anti-parallel coupled [APC] ferromagnetic layers, e.g. artificial ferrimagnets [AFI], artificial [AAF] or synthetic [SAF] anti-ferromagnets
    • H01F10/3277—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn by use of anti-parallel coupled [APC] ferromagnetic layers, e.g. artificial ferrimagnets [AFI], artificial [AAF] or synthetic [SAF] anti-ferromagnets by use of artificial ferrimagnets [AFI] only

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Nanotechnology (AREA)
  • Computer Hardware Design (AREA)
  • Mram Or Spin Memory Techniques (AREA)
  • Hall/Mr Elements (AREA)
  • Semiconductor Memories (AREA)
  • Magnetic Record Carriers (AREA)
KR1020030013710A 2002-03-06 2003-03-05 자기 저장 장치용 합성 페리 자성 기준층 Expired - Fee Related KR100978641B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/093,344 US6625059B1 (en) 2002-03-06 2002-03-06 Synthetic ferrimagnet reference layer for a magnetic storage device
US10/093,344 2002-03-06

Publications (2)

Publication Number Publication Date
KR20030074233A KR20030074233A (ko) 2003-09-19
KR100978641B1 true KR100978641B1 (ko) 2010-08-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020030013710A Expired - Fee Related KR100978641B1 (ko) 2002-03-06 2003-03-05 자기 저장 장치용 합성 페리 자성 기준층

Country Status (6)

Country Link
US (1) US6625059B1 (enExample)
EP (1) EP1343170A3 (enExample)
JP (1) JP4477829B2 (enExample)
KR (1) KR100978641B1 (enExample)
CN (1) CN100419902C (enExample)
TW (1) TW200304143A (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6967350B2 (en) * 2002-04-02 2005-11-22 Hewlett-Packard Development Company, L.P. Memory structures
US7167391B2 (en) * 2004-02-11 2007-01-23 Hewlett-Packard Development Company, L.P. Multilayer pinned reference layer for a magnetic storage device
US7102920B2 (en) * 2004-03-23 2006-09-05 Hewlett-Packard Development Company, L.P. Soft-reference three conductor magnetic memory storage device
US7622784B2 (en) * 2005-01-10 2009-11-24 International Business Machines Corporation MRAM device with improved stack structure and offset field for low-power toggle mode writing
US20090257168A1 (en) * 2008-04-11 2009-10-15 Northern Lights Semiconductor Corp. Apparatus for Storing Electrical Energy
KR101598833B1 (ko) * 2009-12-21 2016-03-03 삼성전자주식회사 자기 메모리 소자 및 그 동작방법
US8890266B2 (en) 2011-01-31 2014-11-18 Everspin Technologies, Inc. Fabrication process and layout for magnetic sensor arrays
US9583696B2 (en) 2014-03-12 2017-02-28 Qualcomm Incorporated Reference layer for perpendicular magnetic anisotropy magnetic tunnel junction
US9666215B2 (en) 2015-10-28 2017-05-30 International Business Machines Corporation Termination layer-compensated tunneling magnetoresistance in ferrimagnetic Heusler compounds with high perpendicular magnetic anisotropy
JP2020042882A (ja) * 2018-09-12 2020-03-19 キオクシア株式会社 磁気メモリ
CN112700583B (zh) * 2020-12-16 2025-05-23 宁波希磁电子科技有限公司 一种磁性识别装置、方法及系统和带有磁编码的被测物

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001067620A (ja) * 1999-08-24 2001-03-16 Matsushita Electric Ind Co Ltd 磁気抵抗効果素子の製造方法
JP2001196658A (ja) * 2000-01-07 2001-07-19 Fujitsu Ltd 磁気素子及び磁気記憶装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650958A (en) * 1996-03-18 1997-07-22 International Business Machines Corporation Magnetic tunnel junctions with controlled magnetic response
US6072718A (en) * 1998-02-10 2000-06-06 International Business Machines Corporation Magnetic memory devices having multiple magnetic tunnel junctions therein
EP1892538A3 (en) * 1999-06-18 2008-08-13 Koninklijke Philips Electronics N.V. Magnetic systems with irreversible characteristics and a method of manufacturing and repairing and operating such systems.
US6166948A (en) * 1999-09-03 2000-12-26 International Business Machines Corporation Magnetic memory array with magnetic tunnel junction memory cells having flux-closed free layers
US6385082B1 (en) * 2000-11-08 2002-05-07 International Business Machines Corp. Thermally-assisted magnetic random access memory (MRAM)

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001067620A (ja) * 1999-08-24 2001-03-16 Matsushita Electric Ind Co Ltd 磁気抵抗効果素子の製造方法
JP2001196658A (ja) * 2000-01-07 2001-07-19 Fujitsu Ltd 磁気素子及び磁気記憶装置

Also Published As

Publication number Publication date
KR20030074233A (ko) 2003-09-19
US20030169620A1 (en) 2003-09-11
EP1343170A3 (en) 2003-11-19
EP1343170A2 (en) 2003-09-10
TW200304143A (en) 2003-09-16
JP4477829B2 (ja) 2010-06-09
CN100419902C (zh) 2008-09-17
JP2003272374A (ja) 2003-09-26
US6625059B1 (en) 2003-09-23
CN1442861A (zh) 2003-09-17

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