JP2005539376A - 磁気デバイス用アモルファス合金 - Google Patents
磁気デバイス用アモルファス合金 Download PDFInfo
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 85
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 59
- 239000000956 alloy Substances 0.000 title claims abstract description 59
- 230000004907 flux Effects 0.000 claims abstract description 15
- 230000005294 ferromagnetic effect Effects 0.000 claims description 43
- 229910052796 boron Inorganic materials 0.000 claims description 20
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 16
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 230000005415 magnetization Effects 0.000 claims description 9
- 229910052715 tantalum Inorganic materials 0.000 claims description 8
- 229910052735 hafnium Inorganic materials 0.000 claims description 7
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- 229910000946 Y alloy Inorganic materials 0.000 claims 3
- PPWPWBNSKBDSPK-UHFFFAOYSA-N [B].[C] Chemical compound [B].[C] PPWPWBNSKBDSPK-UHFFFAOYSA-N 0.000 claims 2
- VQYPKWOGIPDGPN-UHFFFAOYSA-N [C].[Ta] Chemical compound [C].[Ta] VQYPKWOGIPDGPN-UHFFFAOYSA-N 0.000 claims 2
- RGSCXUOGQGNWFC-UHFFFAOYSA-N [Hf].[C] Chemical compound [Hf].[C] RGSCXUOGQGNWFC-UHFFFAOYSA-N 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 20
- 229910003321 CoFe Inorganic materials 0.000 abstract description 14
- 238000005253 cladding Methods 0.000 abstract description 9
- FQMNUIZEFUVPNU-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co] FQMNUIZEFUVPNU-UHFFFAOYSA-N 0.000 abstract 1
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 230000008878 coupling Effects 0.000 description 16
- 238000010168 coupling process Methods 0.000 description 16
- 238000005859 coupling reaction Methods 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 230000005290 antiferromagnetic effect Effects 0.000 description 10
- 239000010953 base metal Substances 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 8
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 7
- 229910019236 CoFeB Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- SHMWNGFNWYELHA-UHFFFAOYSA-N iridium manganese Chemical compound [Mn].[Ir] SHMWNGFNWYELHA-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000010287 polarization Effects 0.000 description 6
- 238000001953 recrystallisation Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 229910052707 ruthenium Inorganic materials 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- AAEQXEDPVFIFDK-UHFFFAOYSA-N 3-(4-fluorobenzoyl)-2-(2-methylpropanoyl)-n,3-diphenyloxirane-2-carboxamide Chemical compound C=1C=CC=CC=1NC(=O)C1(C(=O)C(C)C)OC1(C=1C=CC=CC=1)C(=O)C1=CC=C(F)C=C1 AAEQXEDPVFIFDK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001313 Cobalt-iron alloy Inorganic materials 0.000 description 1
- 229910003864 HfC Inorganic materials 0.000 description 1
- 229910004162 TaHf Inorganic materials 0.000 description 1
- 229910004156 TaNx Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- ZDZZPLGHBXACDA-UHFFFAOYSA-N [B].[Fe].[Co] Chemical compound [B].[Fe].[Co] ZDZZPLGHBXACDA-UHFFFAOYSA-N 0.000 description 1
- FUPSIUJRMWMPJP-UHFFFAOYSA-N [Fe].[Ni].[Ta] Chemical compound [Fe].[Ni].[Ta] FUPSIUJRMWMPJP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002772 conduction electron Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- 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
-
- 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
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- 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
- B82Y40/00—Manufacture or treatment of nanostructures
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- 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
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- 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
- 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
-
- 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
- H01F10/3204—Exchange coupling of amorphous multilayers
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- 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]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/30—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE]
- H01F41/302—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying spin-exchange-coupled multilayers, e.g. nanostructured superlattices
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/80—Constructional details
- H10N50/85—Magnetic active materials
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- 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
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- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12431—Foil or filament smaller than 6 mils
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- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Thin Magnetic Films (AREA)
- Hall/Mr Elements (AREA)
- Soft Magnetic Materials (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Hard Magnetic Materials (AREA)
- Magnetic Heads (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
好適な実施形態についての次の詳細な記載は本質的に単なる例示であり、本発明または本発明の用途及び使用を制限するものではない。更に、本発明に関連して前に説明した技術的背景、または好適な例示としての実施形態に関する次の詳細な記載に含まれる理論によって本発明が限定されるものではない。
Claims (4)
- 磁気トンネル接合部であって、
第1強磁性層と、
前記第1強磁性層上に形成されたスペーサ層と、
前記スペーサ層上に形成された第2強磁性層と、を備え、
前記第1強磁性層及び前記第2強磁性層のうちの少なくとも一つがアモルファス(Co100−X FeX)100−YDY合金であり、該アモルファス合金においてはXが約10.5原子重量%〜25原子重量%の範囲内であり、
Dは、ボロン(B)、タンタル(Ta)、ハフニウム(Hf)、ボロン−炭素(B−C)、タンタル−炭素(Ta−C)、及びハフニウム−炭素(Hf−C)のうちの少なくとも一つを含む、磁気トンネル接合部。 - 方法であって、
第1強磁性層上にスペーサ層を形成する工程と、
前記誘電体スペーサ層上に第2強磁性層を形成する工程と、を備え、
前記第1強磁性層及び前記第2強磁性層のうちの少なくとも一つがアモルファス(Co100−X FeX)100−YDY合金を含み、該アモルファス合金においてはXが約10.5原子重量%〜25原子重量%の範囲内であり、
Dは、B、Ta、Hf、BC、TaC、及びHfCのうちの少なくとも一つを含む、方法。 - MRAM書き込みラインであって、
導電ラインと、
磁束集中層とを備え、前記磁束集中層は前記導電ラインの少なくとも一面をほぼ覆い、前記磁束集中層はアモルファスCoFeX合金を含む、MRAM書き込みライン。 - 磁気抵抗センサであって、
固定磁気モーメントを有する第1強磁性層と、
前記第1強磁性層上に形成されたスペーサ層と、
前記スペーサ層上に形成され、かつ前記第1強磁性層の前記固定磁気モーメントにほぼ直交する磁化容易軸に沿って配向する自由磁気モーメントを有する第2強磁性層と、を備え、
前記第1強磁性層及び前記第2強磁性層のうちの少なくとも一つがアモルファス(Co100−X FeX)100−YDY合金であり、該アモルファス合金においてはXが約10.5原子重量%〜25原子重量%の範囲内であり、
Dは、ボロン(B)、タンタル(Ta)、ハフニウム(Hf)、ボロン−炭素(B−C)、タンタル−炭素(Ta−C)、及びハフニウム−炭素(Hf−C)のうちの少なくとも一つを含む、磁気抵抗センサ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/232,164 US6831312B2 (en) | 2002-08-30 | 2002-08-30 | Amorphous alloys for magnetic devices |
PCT/US2003/023508 WO2004021372A1 (en) | 2002-08-30 | 2003-07-25 | Amorphous alloys for magnetic devices |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005539376A true JP2005539376A (ja) | 2005-12-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004532831A Pending JP2005539376A (ja) | 2002-08-30 | 2003-07-25 | 磁気デバイス用アモルファス合金 |
Country Status (8)
Country | Link |
---|---|
US (2) | US6831312B2 (ja) |
EP (1) | EP1547101B1 (ja) |
JP (1) | JP2005539376A (ja) |
CN (1) | CN100339916C (ja) |
AT (1) | ATE357732T1 (ja) |
AU (1) | AU2003256913A1 (ja) |
DE (1) | DE60312713T2 (ja) |
WO (1) | WO2004021372A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007294737A (ja) * | 2006-04-26 | 2007-11-08 | Hitachi Ltd | トンネル磁気抵抗効果素子、それを用いた磁気メモリセル及びランダムアクセスメモリ |
Families Citing this family (94)
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JP4032695B2 (ja) * | 2001-10-23 | 2008-01-16 | ソニー株式会社 | 磁気メモリ装置 |
US6885073B2 (en) * | 2003-04-02 | 2005-04-26 | Micron Technology, Inc. | Method and apparatus providing MRAM devices with fine tuned offset |
KR100552682B1 (ko) * | 2003-06-02 | 2006-02-20 | 삼성전자주식회사 | 고밀도 자기저항 메모리 및 그 제조방법 |
US7001680B2 (en) * | 2003-07-29 | 2006-02-21 | Hitachi Global Storage Tech Nl | Low resistance magnetic tunnel junction structure |
US7144640B2 (en) * | 2003-08-01 | 2006-12-05 | Agency For Science, Technology And Research | Tilted media for hard disk drives and magnetic data storage devices |
JP4082711B2 (ja) | 2004-03-12 | 2008-04-30 | 独立行政法人科学技術振興機構 | 磁気抵抗素子及びその製造方法 |
US7611912B2 (en) * | 2004-06-30 | 2009-11-03 | Headway Technologies, Inc. | Underlayer for high performance magnetic tunneling junction MRAM |
US7098495B2 (en) * | 2004-07-26 | 2006-08-29 | Freescale Semiconducor, Inc. | Magnetic tunnel junction element structures and methods for fabricating the same |
JP4292128B2 (ja) * | 2004-09-07 | 2009-07-08 | キヤノンアネルバ株式会社 | 磁気抵抗効果素子の製造方法 |
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US6937497B1 (en) * | 2004-11-18 | 2005-08-30 | Maglabs, Inc. | Magnetic random access memory with stacked toggle memory cells |
JP4951858B2 (ja) * | 2005-01-12 | 2012-06-13 | ソニー株式会社 | メモリ |
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EP1547101A1 (en) | 2005-06-29 |
ATE357732T1 (de) | 2007-04-15 |
CN1679122A (zh) | 2005-10-05 |
US20040041183A1 (en) | 2004-03-04 |
CN100339916C (zh) | 2007-09-26 |
DE60312713D1 (de) | 2007-05-03 |
US20050118458A1 (en) | 2005-06-02 |
EP1547101B1 (en) | 2007-03-21 |
US7067331B2 (en) | 2006-06-27 |
DE60312713T2 (de) | 2007-07-12 |
WO2004021372A1 (en) | 2004-03-11 |
US6831312B2 (en) | 2004-12-14 |
AU2003256913A1 (en) | 2004-03-19 |
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