JP2003151263A5 - - Google Patents
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- Publication number
- JP2003151263A5 JP2003151263A5 JP2002273429A JP2002273429A JP2003151263A5 JP 2003151263 A5 JP2003151263 A5 JP 2003151263A5 JP 2002273429 A JP2002273429 A JP 2002273429A JP 2002273429 A JP2002273429 A JP 2002273429A JP 2003151263 A5 JP2003151263 A5 JP 2003151263A5
- Authority
- JP
- Japan
- Prior art keywords
- resistance state
- determined
- transition
- voltage signal
- reference layer
- 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.)
- Withdrawn
Links
- 230000007704 transition Effects 0.000 claims 4
- 230000003111 delayed effect Effects 0.000 claims 2
- 230000005415 magnetization Effects 0.000 claims 2
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/963,851 US6538917B1 (en) | 2001-09-25 | 2001-09-25 | Read methods for magneto-resistive device having soft reference layer |
| US09/963851 | 2001-09-25 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007233234A Division JP4658102B2 (ja) | 2001-09-25 | 2007-09-07 | 磁気的に軟らかい基準層を有する磁気抵抗素子のための読出し方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003151263A JP2003151263A (ja) | 2003-05-23 |
| JP2003151263A5 true JP2003151263A5 (enExample) | 2005-04-28 |
Family
ID=25507809
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002273429A Withdrawn JP2003151263A (ja) | 2001-09-25 | 2002-09-19 | 磁気的に軟らかい基準層を有する磁気抵抗素子のための読出し方法 |
| JP2007233234A Expired - Fee Related JP4658102B2 (ja) | 2001-09-25 | 2007-09-07 | 磁気的に軟らかい基準層を有する磁気抵抗素子のための読出し方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007233234A Expired - Fee Related JP4658102B2 (ja) | 2001-09-25 | 2007-09-07 | 磁気的に軟らかい基準層を有する磁気抵抗素子のための読出し方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6538917B1 (enExample) |
| EP (1) | EP1296331A3 (enExample) |
| JP (2) | JP2003151263A (enExample) |
| KR (1) | KR20030027689A (enExample) |
| CN (1) | CN1307643C (enExample) |
| TW (1) | TWI263216B (enExample) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6936903B2 (en) * | 2001-09-25 | 2005-08-30 | Hewlett-Packard Development Company, L.P. | Magnetic memory cell having a soft reference layer |
| US6795281B2 (en) * | 2001-09-25 | 2004-09-21 | Hewlett-Packard Development Company, L.P. | Magneto-resistive device including soft synthetic ferrimagnet reference layer |
| JP2003151262A (ja) * | 2001-11-15 | 2003-05-23 | Toshiba Corp | 磁気ランダムアクセスメモリ |
| DE10158795B4 (de) * | 2001-11-30 | 2005-12-22 | Infineon Technologies Ag | Magnetoresistive Speicherzelle mit dynamischer Referenzschicht |
| JP3866567B2 (ja) * | 2001-12-13 | 2007-01-10 | 株式会社東芝 | 半導体記憶装置及びその製造方法 |
| KR100408421B1 (ko) * | 2002-01-16 | 2003-12-03 | 삼성전자주식회사 | 서브-어레이의 개수에 관계없이 계층형 입출력 라인구조를 가지는 반도체 메모리 장치 |
| US6683806B2 (en) * | 2002-03-26 | 2004-01-27 | Micron Technology, Inc. | Methods of operating MRAM devices |
| US6687179B2 (en) * | 2002-04-10 | 2004-02-03 | Micron Technology, Inc. | Method and system for writing data in an MRAM memory device |
| US6724652B2 (en) * | 2002-05-02 | 2004-04-20 | Micron Technology, Inc. | Low remanence flux concentrator for MRAM devices |
| US6780653B2 (en) * | 2002-06-06 | 2004-08-24 | Micron Technology, Inc. | Methods of forming magnetoresistive memory device assemblies |
| US6683815B1 (en) * | 2002-06-26 | 2004-01-27 | Silicon Magnetic Systems | Magnetic memory cell and method for assigning tunable writing currents |
| US20050195673A1 (en) * | 2002-07-15 | 2005-09-08 | Yoshiaki Asao | Magnetic random access memory having memory cells configured by use of tunneling magnetoresistive elements |
| US6850433B2 (en) * | 2002-07-15 | 2005-02-01 | Hewlett-Packard Development Company, Lp. | Magnetic memory device and method |
| US6914805B2 (en) * | 2002-08-21 | 2005-07-05 | Micron Technology, Inc. | Method for building a magnetic keeper or flux concentrator used for writing magnetic bits on a MRAM device |
| US6577529B1 (en) * | 2002-09-03 | 2003-06-10 | Hewlett-Packard Development Company, L.P. | Multi-bit magnetic memory device |
| JP3788964B2 (ja) | 2002-09-10 | 2006-06-21 | 株式会社東芝 | 磁気ランダムアクセスメモリ |
| JP3906145B2 (ja) * | 2002-11-22 | 2007-04-18 | 株式会社東芝 | 磁気ランダムアクセスメモリ |
| US7002228B2 (en) * | 2003-02-18 | 2006-02-21 | Micron Technology, Inc. | Diffusion barrier for improving the thermal stability of MRAM devices |
| JP2004296000A (ja) * | 2003-03-27 | 2004-10-21 | Hitachi Ltd | 磁気抵抗効果型ヘッド、及びその製造方法 |
| US7161875B2 (en) * | 2003-06-12 | 2007-01-09 | Hewlett-Packard Development Company, L.P. | Thermal-assisted magnetic memory storage device |
| US6885582B2 (en) * | 2003-06-12 | 2005-04-26 | Hewlett-Packard Development Company, L.P. | Magnetic memory storage device |
| US6819587B1 (en) * | 2003-06-12 | 2004-11-16 | Hewlett-Packard Development Company, L.P. | Thermal-assisted nanotip magnetic memory storage device |
| US6842364B1 (en) * | 2003-07-07 | 2005-01-11 | Hewlett-Packard Development Company, L.P. | Memory cell strings in a resistive cross point memory cell array |
| US6836422B1 (en) * | 2003-07-07 | 2004-12-28 | Hewlett-Packard Development Company, L.P. | System and method for reading a memory cell |
| US7598555B1 (en) | 2003-08-22 | 2009-10-06 | International Business Machines Corporation | MgO tunnel barriers and method of formation |
| US7274080B1 (en) | 2003-08-22 | 2007-09-25 | International Business Machines Corporation | MgO-based tunnel spin injectors |
| US7027320B2 (en) * | 2003-10-21 | 2006-04-11 | Hewlett-Packard Development Company, L.P. | Soft-reference magnetic memory digitized device and method of operation |
| US7286378B2 (en) * | 2003-11-04 | 2007-10-23 | Micron Technology, Inc. | Serial transistor-cell array architecture |
| US7064970B2 (en) * | 2003-11-04 | 2006-06-20 | Micron Technology, Inc. | Serial transistor-cell array architecture |
| US7026673B2 (en) * | 2003-12-11 | 2006-04-11 | International Business Machines Corporation | Low magnetization materials for high performance magnetic memory devices |
| US7252852B1 (en) | 2003-12-12 | 2007-08-07 | International Business Machines Corporation | Mg-Zn oxide tunnel barriers and method of formation |
| US6980466B2 (en) * | 2004-01-15 | 2005-12-27 | Hewlett-Packard Development Company, L.P. | Soft-reference four conductor magnetic memory storage device |
| US7102920B2 (en) * | 2004-03-23 | 2006-09-05 | Hewlett-Packard Development Company, L.P. | Soft-reference three conductor magnetic memory storage device |
| US7339813B2 (en) * | 2004-09-30 | 2008-03-04 | Sharp Laboratories Of America, Inc. | Complementary output resistive memory cell |
| US20090218559A1 (en) * | 2008-02-29 | 2009-09-03 | Ulrich Klostermann | Integrated Circuit, Memory Cell Array, Memory Module, and Method of Manufacturing an Integrated Circuit |
| US7760542B2 (en) | 2008-04-21 | 2010-07-20 | Seagate Technology Llc | Spin-torque memory with unidirectional write scheme |
| US7751231B2 (en) * | 2008-05-05 | 2010-07-06 | Qimonda Ag | Method and integrated circuit for determining the state of a resistivity changing memory cell |
| US8233319B2 (en) | 2008-07-18 | 2012-07-31 | Seagate Technology Llc | Unipolar spin-transfer switching memory unit |
| US7933146B2 (en) | 2008-10-08 | 2011-04-26 | Seagate Technology Llc | Electronic devices utilizing spin torque transfer to flip magnetic orientation |
| US7933137B2 (en) | 2008-10-08 | 2011-04-26 | Seagate Teachnology Llc | Magnetic random access memory (MRAM) utilizing magnetic flip-flop structures |
| US7940592B2 (en) | 2008-12-02 | 2011-05-10 | Seagate Technology Llc | Spin-torque bit cell with unpinned reference layer and unidirectional write current |
| EP2276034B1 (en) * | 2009-07-13 | 2016-04-27 | Crocus Technology S.A. | Self-referenced magnetic random access memory cell |
| EP2575135B1 (en) * | 2011-09-28 | 2015-08-05 | Crocus Technology S.A. | Magnetic random access memory (MRAM) cell and method for reading the MRAM cell using a self-referenced read operation |
| US9047945B2 (en) * | 2012-10-15 | 2015-06-02 | Marvell World Trade Ltd. | Systems and methods for reading resistive random access memory (RRAM) cells |
| KR20140052676A (ko) | 2012-10-25 | 2014-05-07 | 삼성디스플레이 주식회사 | 터치 센싱 패널의 제조 방법 |
| US10170162B2 (en) * | 2017-05-23 | 2019-01-01 | Sandisk Technologies Llc | Sense amplifier calibration |
| US11605409B2 (en) | 2020-10-27 | 2023-03-14 | International Business Machines Corporation | MTJ-based analog memory device |
| US11664059B2 (en) | 2021-06-02 | 2023-05-30 | International Business Machines Corporation | Low power MTJ-based analog memory device |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455626A (en) * | 1983-03-21 | 1984-06-19 | Honeywell Inc. | Thin film memory with magnetoresistive read-out |
| JP2774243B2 (ja) * | 1994-05-27 | 1998-07-09 | 富士通株式会社 | 記憶装置 |
| US5587943A (en) * | 1995-02-13 | 1996-12-24 | Integrated Microtransducer Electronics Corporation | Nonvolatile magnetoresistive memory with fully closed flux operation |
| JPH09306160A (ja) * | 1996-05-09 | 1997-11-28 | Oki Electric Ind Co Ltd | 磁気メモリ素子および情報記憶装置 |
| US6259644B1 (en) * | 1997-11-20 | 2001-07-10 | Hewlett-Packard Co | Equipotential sense methods for resistive cross point memory cell arrays |
| US6169686B1 (en) * | 1997-11-20 | 2001-01-02 | Hewlett-Packard Company | Solid-state memory with magnetic storage cells |
| US6262625B1 (en) * | 1999-10-29 | 2001-07-17 | Hewlett-Packard Co | Operational amplifier with digital offset calibration |
| US5946227A (en) * | 1998-07-20 | 1999-08-31 | Motorola, Inc. | Magnetoresistive random access memory with shared word and digit lines |
| US6034887A (en) * | 1998-08-05 | 2000-03-07 | International Business Machines Corporation | Non-volatile magnetic memory cell and devices |
| US6072717A (en) * | 1998-09-04 | 2000-06-06 | Hewlett Packard | Stabilized magnetic memory cell |
| US6436526B1 (en) * | 1999-06-17 | 2002-08-20 | Matsushita Electric Industrial Co., Ltd. | Magneto-resistance effect element, magneto-resistance effect memory cell, MRAM and method for performing information write to or read from the magneto-resistance effect memory cell |
| US6134138A (en) * | 1999-07-30 | 2000-10-17 | Honeywell Inc. | Method and apparatus for reading a magnetoresistive memory |
| JP2001067862A (ja) * | 1999-09-01 | 2001-03-16 | Sanyo Electric Co Ltd | 磁気メモリ素子 |
| US6611405B1 (en) * | 1999-09-16 | 2003-08-26 | Kabushiki Kaisha Toshiba | Magnetoresistive element and magnetic memory device |
| US6404674B1 (en) * | 2001-04-02 | 2002-06-11 | Hewlett Packard Company Intellectual Property Administrator | Cladded read-write conductor for a pinned-on-the-fly soft reference layer |
| US6466471B1 (en) * | 2001-05-29 | 2002-10-15 | Hewlett-Packard Company | Low power MRAM memory array |
-
2001
- 2001-09-25 US US09/963,851 patent/US6538917B1/en not_active Expired - Lifetime
-
2002
- 2002-08-07 TW TW091117781A patent/TWI263216B/zh not_active IP Right Cessation
- 2002-09-02 EP EP02256084A patent/EP1296331A3/en not_active Withdrawn
- 2002-09-19 JP JP2002273429A patent/JP2003151263A/ja not_active Withdrawn
- 2002-09-24 KR KR1020020057725A patent/KR20030027689A/ko not_active Ceased
- 2002-09-24 CN CNB021323445A patent/CN1307643C/zh not_active Expired - Lifetime
-
2007
- 2007-09-07 JP JP2007233234A patent/JP4658102B2/ja not_active Expired - Fee Related
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