KR100513722B1 - 자기터널접합소자 및 그 제조방법 - Google Patents
자기터널접합소자 및 그 제조방법 Download PDFInfo
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- KR100513722B1 KR100513722B1 KR10-2002-0071046A KR20020071046A KR100513722B1 KR 100513722 B1 KR100513722 B1 KR 100513722B1 KR 20020071046 A KR20020071046 A KR 20020071046A KR 100513722 B1 KR100513722 B1 KR 100513722B1
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- Prior art keywords
- layer
- tunnel junction
- magnetic tunnel
- junction element
- magnetic
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- 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
- H10N50/01—Manufacture or treatment
-
- 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
- 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
- H01F10/324—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
- 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
- H01F41/305—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 applying the spacer or adjusting its interface, e.g. in order to enable particular effect different from exchange coupling
- H01F41/307—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 applying the spacer or adjusting its interface, e.g. in order to enable particular effect different from exchange coupling insulating or semiconductive spacer
-
- 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
- H10N50/10—Magnetoresistive devices
-
- 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
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31826—Of natural rubber
Abstract
Description
Claims (21)
- 기판과, 기판 상에 순서대로 적층되는 고정층, 터널장벽층 및, 자유층을 구비하는 자기터널접합소자에 있어서,상기 고정층과 상기 터널장벽층 사이에 질화계 금속으로 이루어진 자기저항 버퍼층 및 AlN층이 적층되어 있으며, 상기 자기터널접합소자가 전체적으로 열처리됨으로써 감소된 자기접합저항을 가지는 것을 특징으로 하는 자기터널접합소자.
- 제 1 항에 있어서,상기 터널장벽층은 열처리되면서 질소가 결합되는 것을 특징으로 하는 자기터널접합소자.
- 제 1 항에 있어서,상기 고정층은 상기 기판 상에 시드층, 피닝층 및, 핀드층이 순서대로 증착되어 이루어지는 것을 특징으로 하는 자기터널접합소자.
- 제 3 항에 있어서,상기 시드층은 NiFe, Ru 및 Ir 중 어느 하나로 이루어지는 강자성층인 것을 특징으로 하는 자기터널접합소자.
- 제 3 항에 있어서,상기 피닝층은 FeMn 및 IrMn 중 어느 하나로 이루어지는 반강자성층인 것을 특징으로 하는 자기터널접합소자.
- 제 3 항에 있어서,상기 피드층은 NiFe 및 CoFe 중 어느 하나로 이루어지는 강자성층인 것을 특징으로 하는 자기터널접합소자.
- 제 1 항에 있어서,상기 자기저항 버퍼층은 FeN을 포함하는 질화금속층인 것을 특징으로 하는 자기터널접합소자.
- 제 1 항에 있어서,상기 터널장벽층은 AlOx를 포함하는 절연층인 것을 특징으로 하는 자기터널접합소자.
- 제 1 항에 있어서,상기 열처리는 150 내지 300℃의 온도로 가열한 다음 서냉시키는 것을 특징으로 하는 자기터널접합소자.
- 기판 상에 고정층을 증착한 다음, 상기 고정층의 표면을 질소 플라즈마 처리하여 자기 저항버프층을 형성시키는 제1단계;상기 고정층 상에 터널장벽층, 자유층 및, 캡핑층을 순서대로 증착하고 열처리하여 상기 터널장벽층 하부에 AlN층을 형성시켜 자기저항을 감소시킨 자기터널접합소자를 제조하는 제2단계;를 포함하는 것을 특징으로 하는 자기터널접합소자의 제조방법.
- 제 10 항에 있어서,상기 고정층, 터널장벽층, 자유층 및, 캡핑층은 스퍼터링법으로 증착되는 것을 특징으로 하는 자기터널접합소자의 제조방법.
- 제 10 항에 있어서, 상기 제1단계에서,상기 질소 플라즈마 처리는 소정 압력의 질소 분위기에 직류전력을 인가하여 생성된 질소 플라즈마를 고정층에 접촉시키는 것을 특징으로 하는 자기터널접합소자의 제조방법.
- 제 10 항에 있어서, 상기 제2단계에서,상기 열처리는 150℃ 내지 300℃의 온도로 적어도 1회 가열하고 서냉하는 것을 특징으로 하는 자기터널접합소자의 제조방법.
- 제 10 항에 있어서, 상기 제2단계에서,상기 열처리하는 동안 자기장을 인가하는 것을 특징으로 하는 자기터널접합소자의 제조방법.
- 제 10 항에 있어서,상기 터널장벽층은 열처리되면서 질소가 결합하는 것을 특징으로 하는 자기터널접합소자 제조방법.
- 제 10 항에 있어서,상기 고정층은 상기 기판 상에 시드층, 피닝층 및, 핀드층이 순서대로 증착되어 이루어지는 것을 특징으로 하는 자기터널접합소자 제조방법.
- 제 16 항에 있어서,상기 시드층은 NiFe, Ru 및 Ir 중 어느 하나로 이루어지는 강자성층인 것을 특징으로 하는 자기터널접합소자 제조방법.
- 제 16 항에 있어서,상기 피닝층은 FeMn 및 IrMn 중 어느 하나로 이루어지는 반강자성층인 것을 특징으로 하는 자기터널접합소자 제조방법.
- 제 16 항에 있어서,상기 피드층은 NiFe 및 CoFe 중 어느 하나로 이루어지는 강자성층인 것을 특징으로 하는 자기터널접합소자 제조방법.
- 제 10 항에 있어서,상기 자기저항 버퍼층은 FeN을 포함하는 질화금속층인 것을 특징으로 하는 자기터널접합소자 제조방법.
- 제 10 항에 있어서,상기 터널장벽층은 AlOx를 포함하는 절연층인 것을 특징으로 하는 자기터널접합소자 제조방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0071046A KR100513722B1 (ko) | 2002-11-15 | 2002-11-15 | 자기터널접합소자 및 그 제조방법 |
CNB031526098A CN100459205C (zh) | 2002-11-15 | 2003-07-31 | 磁性隧道结器件及其制造方法 |
US10/713,215 US20040101702A1 (en) | 2002-11-15 | 2003-11-17 | Magnetic tunnel junction device and method for fabricating the same |
JP2003386883A JP2004179652A (ja) | 2002-11-15 | 2003-11-17 | 磁気トンネル接合素子及びその製造方法 |
US11/707,949 US20070154630A1 (en) | 2002-11-15 | 2007-02-20 | Method for fabricating magnetic tunnel junction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR10-2002-0071046A KR100513722B1 (ko) | 2002-11-15 | 2002-11-15 | 자기터널접합소자 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20040043048A KR20040043048A (ko) | 2004-05-22 |
KR100513722B1 true KR100513722B1 (ko) | 2005-09-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR10-2002-0071046A KR100513722B1 (ko) | 2002-11-15 | 2002-11-15 | 자기터널접합소자 및 그 제조방법 |
Country Status (4)
Country | Link |
---|---|
US (2) | US20040101702A1 (ko) |
JP (1) | JP2004179652A (ko) |
KR (1) | KR100513722B1 (ko) |
CN (1) | CN100459205C (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100988081B1 (ko) * | 2003-04-23 | 2010-10-18 | 삼성전자주식회사 | 이종방식으로 형성된 중간 산화막을 구비하는 자기 램 및그 제조 방법 |
CN100438115C (zh) * | 2004-12-02 | 2008-11-26 | 北京科技大学 | 一种具有高磁电阻效应的磁性隧道结 |
US7251110B2 (en) | 2005-01-18 | 2007-07-31 | Hitachi Global Storage Technologies Netherlands B.V. | GMR sensor having layers treated with nitrogen for increased magnetoresistance |
KR100586267B1 (ko) * | 2005-03-09 | 2006-06-08 | 학교법인고려중앙학원 | 비정질 니켈-철-실리콘-보론 자유층을 구비하는 자기 터널접합 |
JP4828157B2 (ja) * | 2005-05-16 | 2011-11-30 | シャープ株式会社 | トンネル磁気抵抗効果素子及びその製造方法 |
CN102201533B (zh) * | 2010-03-24 | 2013-05-29 | 中芯国际集成电路制造(上海)有限公司 | 磁性隧道结结构的制作方法 |
CN102403451B (zh) * | 2010-09-17 | 2014-11-26 | 中芯国际集成电路制造(北京)有限公司 | 一种磁性随机存取存储器磁性隧道结层制造方法 |
US9028910B2 (en) * | 2010-12-10 | 2015-05-12 | Avalanche Technology, Inc. | MTJ manufacturing method utilizing in-situ annealing and etch back |
CN102928651A (zh) * | 2012-11-26 | 2013-02-13 | 王建国 | Tmr电流传感器 |
US8619394B1 (en) | 2012-11-29 | 2013-12-31 | HGST Netherlands B.V. | Magnetic tunnel junction with barrier cooling for magnetic read head |
US9093632B2 (en) * | 2013-09-09 | 2015-07-28 | Shuichi TSUBATA | Nonvolatile semiconductor memory device and method of manufacturing the same |
US9459835B2 (en) | 2014-01-15 | 2016-10-04 | HGST Netherlands B.V. | Random number generator by superparamagnetism |
KR102287755B1 (ko) | 2014-11-18 | 2021-08-09 | 삼성전자주식회사 | 자기 저항 메모리 소자를 형성하는 방법 |
KR102465539B1 (ko) | 2015-09-18 | 2022-11-11 | 삼성전자주식회사 | 자기 터널 접합 구조체를 포함하는 반도체 소자 및 그의 형성 방법 |
CN107958953B (zh) * | 2016-10-14 | 2021-07-13 | 中电海康集团有限公司 | 磁性隧道结的自由层的制备方法及磁性隧道结的制备方法 |
CN107958954B (zh) * | 2016-10-14 | 2021-07-13 | 中电海康集团有限公司 | 磁性隧道结的参考层的制备方法、磁性隧道结的制备方法 |
US11125840B2 (en) | 2020-02-18 | 2021-09-21 | Western Digital Technologies, Inc. | Ultra-low RA and high TMR magnetic sensor with radiation reflective lead |
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JP2002314166A (ja) * | 2001-04-16 | 2002-10-25 | Nec Corp | 磁気抵抗効果素子及びその製造方法 |
US6518588B1 (en) * | 2001-10-17 | 2003-02-11 | International Business Machines Corporation | Magnetic random access memory with thermally stable magnetic tunnel junction cells |
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2002
- 2002-11-15 KR KR10-2002-0071046A patent/KR100513722B1/ko active IP Right Grant
-
2003
- 2003-07-31 CN CNB031526098A patent/CN100459205C/zh not_active Expired - Lifetime
- 2003-11-17 US US10/713,215 patent/US20040101702A1/en not_active Abandoned
- 2003-11-17 JP JP2003386883A patent/JP2004179652A/ja active Pending
-
2007
- 2007-02-20 US US11/707,949 patent/US20070154630A1/en not_active Abandoned
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JPH10284768A (ja) * | 1997-04-10 | 1998-10-23 | Alps Electric Co Ltd | 磁気抵抗効果素子 |
KR20010002907A (ko) * | 1999-06-18 | 2001-01-15 | 서평원 | 휴대폰의 자동 전원 온 방법 |
US6429497B1 (en) * | 2000-11-18 | 2002-08-06 | Hewlett-Packard Company | Method for improving breakdown voltage in magnetic tunnel junctions |
KR20020057762A (ko) * | 2001-01-06 | 2002-07-12 | 윤종용 | 터널링 자기저항 소자 및 그 제조방법 |
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JP2004179652A (ja) | 2004-06-24 |
US20070154630A1 (en) | 2007-07-05 |
KR20040043048A (ko) | 2004-05-22 |
CN1501523A (zh) | 2004-06-02 |
US20040101702A1 (en) | 2004-05-27 |
CN100459205C (zh) | 2009-02-04 |
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