CN101861622B - 具有减小的电流密度的磁性元件 - Google Patents
具有减小的电流密度的磁性元件 Download PDFInfo
- Publication number
- CN101861622B CN101861622B CN200880116627.6A CN200880116627A CN101861622B CN 101861622 B CN101861622 B CN 101861622B CN 200880116627 A CN200880116627 A CN 200880116627A CN 101861622 B CN101861622 B CN 101861622B
- Authority
- CN
- China
- Prior art keywords
- layer
- free magnetic
- magnetic layer
- free
- memory storage
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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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
- G11C11/16—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
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Hall/Mr Elements (AREA)
- Mram Or Spin Memory Techniques (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/870,856 US7932571B2 (en) | 2007-10-11 | 2007-10-11 | Magnetic element having reduced current density |
| US11/870,856 | 2007-10-11 | ||
| PCT/US2008/079471 WO2009049122A1 (en) | 2007-10-11 | 2008-10-10 | Magnetic element having reduced current density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101861622A CN101861622A (zh) | 2010-10-13 |
| CN101861622B true CN101861622B (zh) | 2014-06-04 |
Family
ID=40083579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880116627.6A Active CN101861622B (zh) | 2007-10-11 | 2008-10-10 | 具有减小的电流密度的磁性元件 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US7932571B2 (enExample) |
| EP (2) | EP2201570B1 (enExample) |
| JP (1) | JP2011501420A (enExample) |
| CN (1) | CN101861622B (enExample) |
| WO (1) | WO2009049122A1 (enExample) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5361201B2 (ja) * | 2008-01-30 | 2013-12-04 | 株式会社東芝 | 磁気抵抗効果素子の製造方法 |
| US7965543B2 (en) * | 2009-04-30 | 2011-06-21 | Everspin Technologies, Inc. | Method for reducing current density in a magnetoelectronic device |
| US8390283B2 (en) | 2009-09-25 | 2013-03-05 | Everspin Technologies, Inc. | Three axis magnetic field sensor |
| US8558331B2 (en) | 2009-12-08 | 2013-10-15 | Qualcomm Incorporated | Magnetic tunnel junction device |
| TWI398973B (zh) * | 2009-12-31 | 2013-06-11 | Ind Tech Res Inst | 垂直式磁性磁阻元件結構 |
| JP2013101989A (ja) * | 2010-02-10 | 2013-05-23 | Hitachi Ltd | 強磁性トンネル接合素子 |
| US8518734B2 (en) | 2010-03-31 | 2013-08-27 | Everspin Technologies, Inc. | Process integration of a single chip three axis magnetic field sensor |
| KR101766899B1 (ko) * | 2010-04-21 | 2017-08-10 | 삼성전자주식회사 | 자기 메모리 소자 |
| KR101684915B1 (ko) * | 2010-07-26 | 2016-12-12 | 삼성전자주식회사 | 자기 기억 소자 |
| US8772886B2 (en) * | 2010-07-26 | 2014-07-08 | Avalanche Technology, Inc. | Spin transfer torque magnetic random access memory (STTMRAM) having graded synthetic free layer |
| US8358534B2 (en) | 2010-09-17 | 2013-01-22 | Micron Technology, Inc. | Spin torque transfer memory cell structures and methods |
| US8300454B2 (en) | 2010-09-17 | 2012-10-30 | Micron Technology, Inc. | Spin torque transfer memory cell structures and methods |
| US9666639B2 (en) | 2010-09-17 | 2017-05-30 | Micron Technology, Inc. | Spin torque transfer memory cell structures and methods |
| US8310868B2 (en) | 2010-09-17 | 2012-11-13 | Micron Technology, Inc. | Spin torque transfer memory cell structures and methods |
| US8531802B2 (en) * | 2010-12-17 | 2013-09-10 | Seagate Technology Llc | Magnetic structure free layer stabilization |
| US8432009B2 (en) | 2010-12-31 | 2013-04-30 | Grandis, Inc. | Method and system for providing magnetic layers having insertion layers for use in spin transfer torque memories |
| US9478730B2 (en) | 2010-12-31 | 2016-10-25 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic layers having insertion layers for use in spin transfer torque memories |
| US8492859B2 (en) * | 2011-02-15 | 2013-07-23 | International Business Machines Corporation | Magnetic tunnel junction with spacer layer for spin torque switched MRAM |
| US20120267733A1 (en) | 2011-04-25 | 2012-10-25 | International Business Machines Corporation | Magnetic stacks with perpendicular magnetic anisotropy for spin momentum transfer magnetoresistive random access memory |
| US8686484B2 (en) | 2011-06-10 | 2014-04-01 | Everspin Technologies, Inc. | Spin-torque magnetoresistive memory element and method of fabricating same |
| JP5558425B2 (ja) * | 2011-07-04 | 2014-07-23 | 株式会社東芝 | 磁気抵抗素子、磁気メモリ及び磁気抵抗素子の製造方法 |
| US8766383B2 (en) * | 2011-07-07 | 2014-07-01 | Samsung Electronics Co., Ltd. | Method and system for providing a magnetic junction using half metallic ferromagnets |
| JP2013115400A (ja) * | 2011-12-01 | 2013-06-10 | Sony Corp | 記憶素子、記憶装置 |
| JP2013115413A (ja) | 2011-12-01 | 2013-06-10 | Sony Corp | 記憶素子、記憶装置 |
| US9042164B2 (en) | 2012-03-26 | 2015-05-26 | Honeywell International Inc. | Anti-tampering devices and techniques for magnetoresistive random access memory |
| US8767432B1 (en) | 2012-12-11 | 2014-07-01 | International Business Machines Corporation | Method and apparatus for controlled application of Oersted field to magnetic memory structure |
| US8981505B2 (en) * | 2013-01-11 | 2015-03-17 | Headway Technologies, Inc. | Mg discontinuous insertion layer for improving MTJ shunt |
| US9240547B2 (en) | 2013-09-10 | 2016-01-19 | Micron Technology, Inc. | Magnetic tunnel junctions and methods of forming magnetic tunnel junctions |
| US9344345B2 (en) | 2014-03-19 | 2016-05-17 | Micron Technology, Inc. | Memory cells having a self-aligning polarizer |
| SG10201401676XA (en) | 2014-04-21 | 2015-11-27 | Micron Technology Inc | Spin transfer torque memory cells |
| US20160087194A1 (en) * | 2014-09-18 | 2016-03-24 | Samsung Electronics Co., Ltd. | Magnetic tunnel junction device and magnetoresistive random access memory |
| JP6553857B2 (ja) * | 2014-09-18 | 2019-07-31 | 三星電子株式会社Samsung Electronics Co.,Ltd. | 磁気トンネル接合素子及び磁気ランダムアクセスメモリ |
| US9559143B2 (en) * | 2015-01-05 | 2017-01-31 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic junctions including free layers that are cobalt-free |
| US9472750B2 (en) * | 2015-01-05 | 2016-10-18 | Samsung Electronics Co., Ltd. | Method and system for providing a bottom pinned layer in a perpendicular magnetic junction usable in spin transfer torque magnetic random access memory applications |
| US9502642B2 (en) | 2015-04-10 | 2016-11-22 | Micron Technology, Inc. | Magnetic tunnel junctions, methods used while forming magnetic tunnel junctions, and methods of forming magnetic tunnel junctions |
| US9520553B2 (en) | 2015-04-15 | 2016-12-13 | Micron Technology, Inc. | Methods of forming a magnetic electrode of a magnetic tunnel junction and methods of forming a magnetic tunnel junction |
| US9530959B2 (en) | 2015-04-15 | 2016-12-27 | Micron Technology, Inc. | Magnetic tunnel junctions |
| US9257136B1 (en) | 2015-05-05 | 2016-02-09 | Micron Technology, Inc. | Magnetic tunnel junctions |
| US9960346B2 (en) * | 2015-05-07 | 2018-05-01 | Micron Technology, Inc. | Magnetic tunnel junctions |
| US10483320B2 (en) | 2015-12-10 | 2019-11-19 | Everspin Technologies, Inc. | Magnetoresistive stack with seed region and method of manufacturing the same |
| US10141498B2 (en) | 2015-12-10 | 2018-11-27 | Everspin Technologies, Inc. | Magnetoresistive stack, seed region thereof and method of manufacturing same |
| US10361361B2 (en) * | 2016-04-08 | 2019-07-23 | International Business Machines Corporation | Thin reference layer for STT MRAM |
| US9680089B1 (en) | 2016-05-13 | 2017-06-13 | Micron Technology, Inc. | Magnetic tunnel junctions |
| US10439133B2 (en) | 2017-03-13 | 2019-10-08 | Samsung Electronics Co., Ltd. | Method and system for providing a magnetic junction having a low damping hybrid free layer |
| JP7096198B2 (ja) * | 2019-04-26 | 2022-07-05 | Tdk株式会社 | 磁気抵抗効果素子 |
| US10964468B2 (en) * | 2019-07-12 | 2021-03-30 | The Regents Of The University Of California | Magnetic memory structures using electric-field controlled interlayer exchange coupling (IEC) for magnetization switching |
| JP2021044444A (ja) * | 2019-09-12 | 2021-03-18 | キオクシア株式会社 | 磁気記憶装置 |
| US11742011B2 (en) | 2021-08-11 | 2023-08-29 | The Regents Of The University Of California | Voltage-controlled gain-cell magnetic memory |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463010A (zh) * | 2002-03-27 | 2003-12-24 | 株式会社东芝 | 磁阻效应元件和具有该磁阻效应元件的磁存储器 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003324225A (ja) * | 2002-04-26 | 2003-11-14 | Nec Corp | 積層フェリ型磁性薄膜並びにそれを使用した磁気抵抗効果素子及び強磁性トンネル素子 |
| US6714444B2 (en) | 2002-08-06 | 2004-03-30 | Grandis, Inc. | Magnetic element utilizing spin transfer and an MRAM device using the magnetic element |
| JP3699954B2 (ja) | 2002-10-25 | 2005-09-28 | 株式会社東芝 | 磁気メモリ |
| JP4406242B2 (ja) * | 2003-09-04 | 2010-01-27 | 株式会社東芝 | 磁気メモリ |
| US6992359B2 (en) | 2004-02-26 | 2006-01-31 | Grandis, Inc. | Spin transfer magnetic element with free layers having high perpendicular anisotropy and in-plane equilibrium magnetization |
| JP4575101B2 (ja) * | 2004-09-30 | 2010-11-04 | 株式会社東芝 | 磁気抵抗効果素子および磁気メモリ |
| JP2007027197A (ja) * | 2005-07-12 | 2007-02-01 | Sony Corp | 記憶素子 |
| US7430135B2 (en) | 2005-12-23 | 2008-09-30 | Grandis Inc. | Current-switched spin-transfer magnetic devices with reduced spin-transfer switching current density |
| JP4514721B2 (ja) * | 2006-02-09 | 2010-07-28 | 株式会社東芝 | 磁気抵抗効果素子の製造方法、磁気抵抗効果素子、磁気抵抗効果ヘッド、磁気記録再生装置及び磁気記憶装置 |
| JP4997789B2 (ja) | 2006-02-23 | 2012-08-08 | Tdk株式会社 | 磁気メモリ |
| JP2007305882A (ja) | 2006-05-12 | 2007-11-22 | Sony Corp | 記憶素子及びメモリ |
| JP2008010590A (ja) * | 2006-06-28 | 2008-01-17 | Toshiba Corp | 磁気抵抗素子及び磁気メモリ |
-
2007
- 2007-10-11 US US11/870,856 patent/US7932571B2/en active Active
-
2008
- 2008-10-10 EP EP08837945.8A patent/EP2201570B1/en active Active
- 2008-10-10 CN CN200880116627.6A patent/CN101861622B/zh active Active
- 2008-10-10 WO PCT/US2008/079471 patent/WO2009049122A1/en not_active Ceased
- 2008-10-10 JP JP2010529069A patent/JP2011501420A/ja active Pending
- 2008-10-10 EP EP17164729.0A patent/EP3232440B1/en active Active
-
2010
- 2010-11-23 US US12/952,661 patent/US8508004B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463010A (zh) * | 2002-03-27 | 2003-12-24 | 株式会社东芝 | 磁阻效应元件和具有该磁阻效应元件的磁存储器 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2201570B1 (en) | 2018-02-28 |
| JP2011501420A (ja) | 2011-01-06 |
| EP2201570A1 (en) | 2010-06-30 |
| US20090096042A1 (en) | 2009-04-16 |
| CN101861622A (zh) | 2010-10-13 |
| WO2009049122A1 (en) | 2009-04-16 |
| US8508004B2 (en) | 2013-08-13 |
| US20110062538A1 (en) | 2011-03-17 |
| EP3232440B1 (en) | 2020-05-27 |
| US7932571B2 (en) | 2011-04-26 |
| EP3232440A2 (en) | 2017-10-18 |
| EP3232440A3 (en) | 2017-11-29 |
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