KR20040002751A - 자기 저항 효과 소자 및 자기 메모리 장치 - Google Patents
자기 저항 효과 소자 및 자기 메모리 장치 Download PDFInfo
- Publication number
- KR20040002751A KR20040002751A KR1020030042044A KR20030042044A KR20040002751A KR 20040002751 A KR20040002751 A KR 20040002751A KR 1020030042044 A KR1020030042044 A KR 1020030042044A KR 20030042044 A KR20030042044 A KR 20030042044A KR 20040002751 A KR20040002751 A KR 20040002751A
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- free layer
- magnetization free
- ferromagnetic material
- magnetoresistive element
- Prior art date
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Classifications
-
- H—ELECTRICITY
- 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
-
- 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
-
- 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
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Nanotechnology (AREA)
- Computer Hardware Design (AREA)
- Hall/Mr Elements (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Thin Magnetic Films (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (6)
- 한 쌍의 강자성 재료층들이 중간층을 통해 서로 대향 배치되어, 상기 층 표면에 수직인 방향으로 전류를 흐르게 함으로써 자기 저항 변화를 얻는 자기 저항 효과 소자에 있어서,상기 강자성 재료층들 중 한 층은 자화 고정층이고, 다른 강자성 재료층은 자화 자유층(magnetization free layer)이며, 상기 자화 자유층은 FeCoB 또는 FeCoNiB를 포함하는 강자성 재료로 구성되고, 상기 자화 자유층은 2 nm 내지 8 nm 범위의 막 두께를 갖는, 자기 저항 효과 소자.
- 제 1 항에 있어서, 상기 자기 저항 효과 소자는 절연 재료 또는 반도체 재료로 이루어진 터널 장벽층을 상기 중간층으로서 이용하는 터널 자기 저항 효과 소자인, 자기 저항 효과 소자.
- 제 1 항에 있어서, 상기 자기 저항 효과 소자는 적층 페리 구조(laminated ferri structure)를 갖는, 자기 저항 효과 소자.
- 터널 장벽층을 샌드위치하는 강자성 터널 접합(junction)이 한 쌍의 강자성 재료층 사이에 형성되어, 상기 층 표면에 수직인 방향으로 전류가 흐르도록 설계된 자기 저항 효과 소자와, 상기 자기 저항 효과 소자를 두께 방향에서 샌드위치하는워드 라인들 및 비트 라인들을 포함하는 자기 메모리 장치에 있어서,상기 강자성 재료층들 중 한 층은 자화 고정층이고, 다른 강자성 재료층은 자화 자유층이며, 상기 자화 자유층은 FeCoB 또는 FeCoNiB를 포함하는 강자성 재료로 구성되고, 상기 자화 자유층은 2 nm 내지 8 nm 범위의 막 두께를 갖는, 자기 메모리 장치.
- 제 4 항에 있어서, 상기 자기 저항 효과 소자는 절연 재료 또는 반도체 재료로 이루어진 터널 장벽층을 상기 중간층으로서 이용하는 터널 자기 저항 효과 소자인, 자기 메모리 장치.
- 제 4 항에 있어서, 상기 자기 저항 효과 소자는 적층 페리 구조를 갖는, 자기 메모리 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2002-00186791 | 2002-06-26 | ||
JP2002186791A JP3729159B2 (ja) | 2002-06-26 | 2002-06-26 | 磁気メモリ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040002751A true KR20040002751A (ko) | 2004-01-07 |
KR100991674B1 KR100991674B1 (ko) | 2010-11-04 |
Family
ID=29774147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030042044A KR100991674B1 (ko) | 2002-06-26 | 2003-06-26 | 자기 저항 효과 소자 및 자기 메모리 장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6831314B2 (ko) |
JP (1) | JP3729159B2 (ko) |
KR (1) | KR100991674B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101219931B1 (ko) * | 2004-11-01 | 2013-01-08 | 소니 주식회사 | 기억 소자 및 메모리 |
Families Citing this family (24)
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JPH11204742A (ja) * | 1998-01-20 | 1999-07-30 | Sony Corp | メモリ及び情報機器 |
JP4100025B2 (ja) * | 2002-04-09 | 2008-06-11 | ソニー株式会社 | 磁気抵抗効果素子及び磁気メモリ装置 |
JP4399211B2 (ja) * | 2002-12-21 | 2010-01-13 | 株式会社ハイニックスセミコンダクター | バイオセンサー |
US7141208B2 (en) * | 2003-04-30 | 2006-11-28 | Hitachi Metals, Ltd. | Fe-Co-B alloy target and its production method, and soft magnetic film produced by using such target, and magnetic recording medium and TMR device |
US6951780B1 (en) * | 2003-12-18 | 2005-10-04 | Matrix Semiconductor, Inc. | Selective oxidation of silicon in diode, TFT, and monolithic three dimensional memory arrays |
US7130167B2 (en) * | 2004-03-03 | 2006-10-31 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetoresistive sensor having improved synthetic free layer |
WO2005088745A1 (ja) | 2004-03-12 | 2005-09-22 | Japan Science And Technology Agency | 磁気抵抗素子及びその製造方法 |
US7148072B2 (en) * | 2004-05-28 | 2006-12-12 | Hitachi Global Storage Technologies Netherlands B.V. | Method and apparatus for oxidizing conductive redeposition in TMR sensors |
JP2006319259A (ja) * | 2005-05-16 | 2006-11-24 | Fujitsu Ltd | 強磁性トンネル接合素子、これを用いた磁気ヘッド、磁気記録装置、および磁気メモリ装置 |
JP2007052886A (ja) * | 2005-08-19 | 2007-03-01 | Alps Electric Co Ltd | 垂直磁気記録ヘッド |
JP2007095750A (ja) * | 2005-09-27 | 2007-04-12 | Canon Anelva Corp | 磁気抵抗効果素子 |
US8582252B2 (en) * | 2005-11-02 | 2013-11-12 | Seagate Technology Llc | Magnetic layer with grain refining agent |
JP2007305768A (ja) * | 2006-05-11 | 2007-11-22 | Tdk Corp | トンネル磁気抵抗効果素子の製造方法、薄膜磁気ヘッドの製造方法及び磁気メモリの製造方法 |
US7710687B1 (en) * | 2006-09-13 | 2010-05-04 | Hutchinson Technology Incorporated | High conductivity ground planes for integrated lead suspensions |
US7830641B2 (en) * | 2007-04-17 | 2010-11-09 | Hitachi Global Storage Technologies Netherlands B.V. | Tunneling magnetoresistive (TMR) sensor with a Co-Fe-B free layer having a negative saturation magnetostriction |
JPWO2009110119A1 (ja) * | 2008-03-06 | 2011-07-14 | 富士電機ホールディングス株式会社 | 強磁性トンネル接合素子および強磁性トンネル接合素子の駆動方法 |
WO2011111473A1 (ja) * | 2010-03-10 | 2011-09-15 | 株式会社日立製作所 | 磁気抵抗効果素子及び磁気メモリ |
JP5725735B2 (ja) | 2010-06-04 | 2015-05-27 | 株式会社日立製作所 | 磁気抵抗効果素子及び磁気メモリ |
JP5786341B2 (ja) * | 2010-09-06 | 2015-09-30 | ソニー株式会社 | 記憶素子、メモリ装置 |
JP2012069694A (ja) * | 2010-09-22 | 2012-04-05 | Toshiba Corp | 磁気メモリ |
JP6029020B2 (ja) * | 2011-05-20 | 2016-11-24 | 国立大学法人東北大学 | 磁気メモリ素子および磁気メモリ |
JP2013016530A (ja) * | 2011-06-30 | 2013-01-24 | Sony Corp | 記憶素子およびその製造方法ならびに記憶装置 |
CN105146899B (zh) | 2015-10-13 | 2018-01-30 | 葛翔 | 接发器 |
CN108666339B (zh) * | 2017-03-28 | 2020-11-13 | 中芯国际集成电路制造(上海)有限公司 | 磁性随机存储器及其存储单元的制造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2933056B2 (ja) * | 1997-04-30 | 1999-08-09 | 日本電気株式会社 | 磁気抵抗効果素子並びにこれを用いた磁気抵抗効果センサ、磁気抵抗検出システム及び磁気記憶システム |
JP3836294B2 (ja) * | 2000-03-27 | 2006-10-25 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ヘッド、及びこれを用いた磁気記録再生装置 |
US20020036876A1 (en) * | 2000-09-06 | 2002-03-28 | Yasuhiro Kawawake | Magnetoresistive element, method for manufacturing the same, and magnetic device using the same |
US6730949B2 (en) * | 2001-03-22 | 2004-05-04 | Kabushiki Kaisha Toshiba | Magnetoresistance effect device |
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2002
- 2002-06-26 JP JP2002186791A patent/JP3729159B2/ja not_active Expired - Lifetime
-
2003
- 2003-06-25 US US10/606,097 patent/US6831314B2/en not_active Expired - Lifetime
- 2003-06-26 KR KR1020030042044A patent/KR100991674B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101219931B1 (ko) * | 2004-11-01 | 2013-01-08 | 소니 주식회사 | 기억 소자 및 메모리 |
Also Published As
Publication number | Publication date |
---|---|
JP3729159B2 (ja) | 2005-12-21 |
JP2004031694A (ja) | 2004-01-29 |
US6831314B2 (en) | 2004-12-14 |
KR100991674B1 (ko) | 2010-11-04 |
US20040001372A1 (en) | 2004-01-01 |
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