TWI449040B - 用於提供內容可定址的磁阻式隨機存取記憶體單元之系統及方法 - Google Patents

用於提供內容可定址的磁阻式隨機存取記憶體單元之系統及方法 Download PDF

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Publication number
TWI449040B
TWI449040B TW096137428A TW96137428A TWI449040B TW I449040 B TWI449040 B TW I449040B TW 096137428 A TW096137428 A TW 096137428A TW 96137428 A TW96137428 A TW 96137428A TW I449040 B TWI449040 B TW I449040B
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Taiwan
Prior art keywords
magnetic
tunnel junction
magnetic layer
magnetization direction
line
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TW096137428A
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English (en)
Chinese (zh)
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TW200844997A (en
Inventor
Jean-Pierre Nozieres
Virgile Javerliac
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Crocus Technology Sa
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C15/00Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
    • G11C15/04Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements
    • G11C15/046Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements using non-volatile storage elements
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16Digital 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
    • G11C11/165Auxiliary circuits
    • G11C11/1659Cell access
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16Digital 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
    • G11C11/165Auxiliary circuits
    • G11C11/1673Reading or sensing circuits or methods
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16Digital 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
    • G11C11/165Auxiliary circuits
    • G11C11/1675Writing or programming circuits or methods
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C15/00Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
    • G11C15/02Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using magnetic elements

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mram Or Spin Memory Techniques (AREA)
  • Hall/Mr Elements (AREA)
TW096137428A 2006-10-06 2007-10-05 用於提供內容可定址的磁阻式隨機存取記憶體單元之系統及方法 TWI449040B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82843806P 2006-10-06 2006-10-06

Publications (2)

Publication Number Publication Date
TW200844997A TW200844997A (en) 2008-11-16
TWI449040B true TWI449040B (zh) 2014-08-11

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TW096137428A TWI449040B (zh) 2006-10-06 2007-10-05 用於提供內容可定址的磁阻式隨機存取記憶體單元之系統及方法

Country Status (5)

Country Link
US (3) US7518897B2 (cg-RX-API-DMAC7.html)
EP (1) EP2070089B1 (cg-RX-API-DMAC7.html)
JP (1) JP5604107B2 (cg-RX-API-DMAC7.html)
TW (1) TWI449040B (cg-RX-API-DMAC7.html)
WO (1) WO2008040561A2 (cg-RX-API-DMAC7.html)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100949110B1 (ko) * 2005-12-09 2010-03-22 후지쯔 가부시끼가이샤 자기 메모리 장치 및 그 기입 방법
WO2007069322A1 (ja) * 2005-12-15 2007-06-21 Spansion Llc 半導体装置およびその制御方法
TWI449040B (zh) 2006-10-06 2014-08-11 Crocus Technology Sa 用於提供內容可定址的磁阻式隨機存取記憶體單元之系統及方法
US7911830B2 (en) * 2007-05-17 2011-03-22 Integrated Magnetoelectronics Scalable nonvolatile memory
US7791941B2 (en) * 2007-10-26 2010-09-07 Micron Technology, Inc. Non-volatile SRAM cell
EP2109111B1 (en) 2008-04-07 2011-12-21 Crocus Technology S.A. System and method for writing data to magnetoresistive random access memory cells
EP2124228B1 (en) * 2008-05-20 2014-03-05 Crocus Technology Magnetic random access memory with an elliptical junction
US8031519B2 (en) 2008-06-18 2011-10-04 Crocus Technology S.A. Shared line magnetic random access memory cells
US8295082B2 (en) * 2008-08-15 2012-10-23 Qualcomm Incorporated Gate level reconfigurable magnetic logic
JP5062597B2 (ja) * 2008-08-29 2012-10-31 独立行政法人産業技術総合研究所 トンネル磁気抵抗素子
US8102700B2 (en) 2008-09-30 2012-01-24 Micron Technology, Inc. Unidirectional spin torque transfer magnetic memory cell structure
US8228703B2 (en) 2008-11-04 2012-07-24 Crocus Technology Sa Ternary Content Addressable Magnetoresistive random access memory cell
EP2221826A1 (en) * 2009-02-19 2010-08-25 Crocus Technology S.A. Active strap magnetic random access memory cells
US8023299B1 (en) * 2009-04-09 2011-09-20 Netlogic Microsystems, Inc. Content addressable memory device having spin torque transfer memory cells
EP2249349B1 (en) * 2009-05-08 2012-02-08 Crocus Technology Magnetic memory with a thermally assisted writing procedure and reduced writng field
ATE544153T1 (de) * 2009-05-08 2012-02-15 Crocus Technology Magnetischer speicher mit wärmeunterstütztem schreibverfahren und niedrigem schreibstrom
US20100302838A1 (en) * 2009-05-26 2010-12-02 Magic Technologies, Inc. Read disturb-free SMT reference cell scheme
US8218349B2 (en) * 2009-05-26 2012-07-10 Crocus Technology Sa Non-volatile logic devices using magnetic tunnel junctions
EP2270812B1 (en) * 2009-07-02 2017-01-18 CROCUS Technology Ultimate magnetic random access memory-based ternay CAM
EP2276034B1 (en) * 2009-07-13 2016-04-27 Crocus Technology S.A. Self-referenced magnetic random access memory cell
US8102703B2 (en) * 2009-07-14 2012-01-24 Crocus Technology Magnetic element with a fast spin transfer torque writing procedure
US20130054886A1 (en) * 2010-01-25 2013-02-28 Idatamap Pty. Ltd. Content addressable memory (cam)
JP2011243716A (ja) * 2010-05-18 2011-12-01 Toshiba Corp スピントランジスタ及び集積回路
US8400066B1 (en) 2010-08-01 2013-03-19 Lawrence T. Pileggi Magnetic logic circuits and systems incorporating same
JP2012089205A (ja) * 2010-10-20 2012-05-10 Renesas Electronics Corp 連想記憶装置
WO2012075330A2 (en) 2010-12-01 2012-06-07 Crocus Technology, Inc. Apparatus, system, and method for matching patterns with an ultra fast check engine
JP5712681B2 (ja) * 2011-03-04 2015-05-07 富士通セミコンダクター株式会社 半導体記憶装置
US8908407B1 (en) * 2011-07-30 2014-12-09 Rambus Inc. Content addressable memory (“CAM”)
US8638582B1 (en) 2011-08-23 2014-01-28 Netlogic Microsystems, Inc. Content addressable memory with base-three numeral system
US8902643B2 (en) 2011-10-10 2014-12-02 Crocus Technology Inc. Apparatus, system, and method for writing multiple magnetic random access memory cells with a single field line
EP2626861B1 (en) 2012-02-13 2015-01-07 Crocus Technology S.A. High speed magnetic random access memory-based ternary CAM
JP6004465B2 (ja) * 2012-03-26 2016-10-05 国立大学法人東北大学 不揮発機能メモリ装置
CN103456356A (zh) 2012-05-31 2013-12-18 三星电子株式会社 半导体存储器装置和相关的操作方法
US9047950B2 (en) * 2012-09-11 2015-06-02 The Regents Of The University Of California Read-disturbance-free nonvolatile content addressable memory (CAM)
EP2712078B1 (en) * 2012-09-25 2015-06-03 Crocus Technology S.A. Magnetic logic unit (MLU) cell and amplifier having a linear magnetic signal
US8913422B2 (en) * 2012-09-28 2014-12-16 Intel Corporation Decreased switching current in spin-transfer torque memory
US9313131B2 (en) * 2013-09-06 2016-04-12 Stmicroelectronics, Inc. Hardware implemented ethernet multiple tuple filter system and method
EP2851903B1 (en) * 2013-09-19 2017-03-01 Crocus Technology S.A. Self-referenced memory device and method for operating the memory device
US9331123B2 (en) 2014-05-09 2016-05-03 Tower Semiconductor Ltd. Logic unit including magnetic tunnel junction elements having two different anti-ferromagnetic layers
US9330748B2 (en) 2014-05-09 2016-05-03 Tower Semiconductor Ltd. High-speed compare operation using magnetic tunnel junction elements including two different anti-ferromagnetic layers
US9524765B2 (en) * 2014-08-15 2016-12-20 Qualcomm Incorporated Differential magnetic tunnel junction pair including a sense layer with a high coercivity portion
US9548095B2 (en) * 2014-08-20 2017-01-17 Everspin Technologies, Inc. Redundant magnetic tunnel junctions in magnetoresistive memory
CN104332175B (zh) * 2014-10-10 2017-02-01 北京航空航天大学 一种字块划分的低功耗磁存储器缓存架构设计方法
USRE48570E1 (en) 2014-10-17 2021-05-25 Lattice Semiconductor Corporation Memory circuit having non-volatile memory cell and methods of using
US9672935B2 (en) 2014-10-17 2017-06-06 Lattice Semiconductor Corporation Memory circuit having non-volatile memory cell and methods of using
FR3031622B1 (fr) * 2015-01-14 2018-02-16 Centre National De La Recherche Scientifique Point memoire magnetique
EP3284093B1 (en) 2015-04-14 2021-08-04 Cambou, Bertrand, F. Memory circuits using a blocking state
WO2016182596A1 (en) 2015-05-11 2016-11-17 Cambou Bertrand F Memory circuit using dynamic random access memory arrays
EP3304561B1 (en) 2015-06-02 2020-08-26 Cambou, Bertrand, F. Memory circuit using resistive random access memory arrays in a secure element
EP3115994B1 (en) 2015-07-07 2022-06-08 Crocus Technology S.A. Magnetic memory device that is protected against reading using an external magnetic field and method for operating such magnetic memory device
JP2017033616A (ja) * 2015-07-31 2017-02-09 株式会社東芝 集積回路
US9813049B2 (en) * 2015-08-12 2017-11-07 Qualcomm Incorporated Comparator including a magnetic tunnel junction (MTJ) device and a transistor
US9728259B1 (en) * 2016-03-15 2017-08-08 Qualcomm Technologies, Inc. Non-volatile (NV)-content addressable memory (CAM) (NV-CAM) cells employing differential magnetic tunnel junction (MTJ) sensing for increased sense margin
CN106328184B (zh) * 2016-08-17 2019-01-29 国网技术学院 Mlc stt-mram数据写入方法及装置、数据读取方法及装置
US10706923B2 (en) 2017-09-08 2020-07-07 Arizona Board Of Regents On Behalf Of Arizona State University Resistive random-access memory for exclusive NOR (XNOR) neural networks
US10559357B1 (en) * 2018-08-06 2020-02-11 Lattice Semiconductor Corporation Memory circuit having non-volatile memory cell and methods of using
US10483457B1 (en) * 2018-08-14 2019-11-19 Qualcomm Incorporated Differential spin orbit torque magnetic random access memory (SOT-MRAM) cell structure and array
US11551750B2 (en) * 2020-12-11 2023-01-10 International Business Machines Corporation Enhanced state dual memory cell

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW480489B (en) * 1999-09-28 2002-03-21 Infineon Technologies Ag Magnetoresistive write/read-memory as well as method to write and read such a memory
US6778445B2 (en) * 2002-08-09 2004-08-17 Renesas Technology Corp. Pipeline nonvolatile memory device with multi-bit parallel read and write suitable for cache memory.
US20050002228A1 (en) * 2001-11-16 2005-01-06 Bernard Dieny Magnetic device with magnetic tunnel junction, memory array and read/write methods using same
US20050117391A1 (en) * 2003-03-11 2005-06-02 Hiroaki Yoda Magnetic random access memory
US20050152179A1 (en) * 2004-01-10 2005-07-14 Honeywell International Inc. Bias-adjusted magnetoresistive devices for magnetic random access memory (MRAM) applications
US6992910B1 (en) * 2004-11-18 2006-01-31 Maglabs, Inc. Magnetic random access memory with three or more stacked toggle memory cells and method for writing a selected cell
US20060039188A1 (en) * 2004-08-23 2006-02-23 Kochan Ju Magnetic random access memory with stacked memory layers having access lines for writing and reading

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4078696B2 (ja) 1997-11-28 2008-04-23 松下電器産業株式会社 記録許可判定装置及び情報記録装置
US6317349B1 (en) * 1999-04-16 2001-11-13 Sandisk Corporation Non-volatile content addressable memory
EP1196925B1 (en) 1999-06-18 2015-10-28 NVE Corporation Magnetic memory coincident thermal pulse data storage
US6191973B1 (en) * 1999-09-27 2001-02-20 Motorola Inc. Mram cam
US6312349B1 (en) * 1999-10-29 2001-11-06 T. Sanford Roberts Sports training device
YU68102A (sh) * 2000-03-16 2006-01-16 F. Hoffmann-La Roche Ag. Derivati karboksilne kiseline kao ip antagonisti
US6269016B1 (en) 2000-06-19 2001-07-31 Motorola Inc. MRAM cam
US6385082B1 (en) 2000-11-08 2002-05-07 International Business Machines Corp. Thermally-assisted magnetic random access memory (MRAM)
US6724674B2 (en) 2000-11-08 2004-04-20 International Business Machines Corporation Memory storage device with heating element
JP4726292B2 (ja) 2000-11-14 2011-07-20 ルネサスエレクトロニクス株式会社 薄膜磁性体記憶装置
FR2817998B1 (fr) 2000-12-07 2003-01-10 Commissariat Energie Atomique Dispositif magnetique a polarisation de spin et a rotation d'aimantation, memoire et procede d'ecriture utilisant ce dispositif
FR2817999B1 (fr) 2000-12-07 2003-01-10 Commissariat Energie Atomique Dispositif magnetique a polarisation de spin et a empilement(s) tri-couche(s) et memoire utilisant ce dispositif
JP3920564B2 (ja) 2000-12-25 2007-05-30 株式会社東芝 磁気ランダムアクセスメモリ
US6304477B1 (en) * 2001-01-31 2001-10-16 Motorola, Inc. Content addressable magnetic random access memory
US6760249B2 (en) 2001-06-21 2004-07-06 Pien Chien Content addressable memory device capable of comparing data bit with storage data bit
FR2829867B1 (fr) 2001-09-20 2003-12-19 Centre Nat Rech Scient Memoire magnetique a selection a l'ecriture par inhibition et procede pour son ecriture
FR2829868A1 (fr) 2001-09-20 2003-03-21 Centre Nat Rech Scient Memoire magnetique a ecriture par courant polarise en spin, mettant en oeuvre des alliages amorphes ferrimagnetiques et procede pour son ecriture
US6750491B2 (en) 2001-12-20 2004-06-15 Hewlett-Packard Development Company, L.P. Magnetic memory device having soft reference layer
US6771534B2 (en) 2002-11-15 2004-08-03 International Business Machines Corporation Thermally-assisted magnetic writing using an oxide layer and current-induced heating
JP4182728B2 (ja) 2002-11-15 2008-11-19 ソニー株式会社 磁気記憶素子の記録方法、磁気記憶装置
US7173846B2 (en) 2003-02-13 2007-02-06 Taiwan Semiconductor Manufacturing Company, Ltd. Magnetic RAM and array architecture using a two transistor, one MTJ cell
EP1639656B1 (en) 2003-06-23 2019-06-12 NVE Corporation Thermally operated ferromagnetic memory cell
JP2005064050A (ja) 2003-08-14 2005-03-10 Toshiba Corp 半導体記憶装置及びそのデータ書き込み方法
FR2860910B1 (fr) 2003-10-10 2006-02-10 Commissariat Energie Atomique Dispositif a jonction tunnel magnetique et procede d'ecriture/lecture d'un tel dispositif
WO2005036558A1 (en) 2003-10-14 2005-04-21 Agency For Science, Technology And Research Magnetic memory device
US7012832B1 (en) * 2003-10-31 2006-03-14 Western Digital (Fremont), Inc. Magnetic memory cell with plural read transistors
FR2866750B1 (fr) 2004-02-23 2006-04-21 Centre Nat Rech Scient Memoire magnetique a jonction tunnel magnetique et procede pour son ecriture
FR2867300B1 (fr) 2004-03-05 2006-04-28 Commissariat Energie Atomique Memoire vive magnetoresistive a haute densite de courant
JP4426876B2 (ja) * 2004-03-09 2010-03-03 公秀 松山 磁気連想メモリ及び磁気連想メモリからの情報読み出し方法
US7102920B2 (en) * 2004-03-23 2006-09-05 Hewlett-Packard Development Company, L.P. Soft-reference three conductor magnetic memory storage device
US7130206B2 (en) * 2004-09-30 2006-10-31 Infineon Technologies Ag Content addressable memory cell including resistive memory elements
US7532505B1 (en) 2006-07-17 2009-05-12 Grandis, Inc. Method and system for using a pulsed field to assist spin transfer induced switching of magnetic memory elements
TWI449040B (zh) 2006-10-06 2014-08-11 Crocus Technology Sa 用於提供內容可定址的磁阻式隨機存取記憶體單元之系統及方法
EP2109111B1 (en) 2008-04-07 2011-12-21 Crocus Technology S.A. System and method for writing data to magnetoresistive random access memory cells

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW480489B (en) * 1999-09-28 2002-03-21 Infineon Technologies Ag Magnetoresistive write/read-memory as well as method to write and read such a memory
US20050002228A1 (en) * 2001-11-16 2005-01-06 Bernard Dieny Magnetic device with magnetic tunnel junction, memory array and read/write methods using same
US6778445B2 (en) * 2002-08-09 2004-08-17 Renesas Technology Corp. Pipeline nonvolatile memory device with multi-bit parallel read and write suitable for cache memory.
US20050117391A1 (en) * 2003-03-11 2005-06-02 Hiroaki Yoda Magnetic random access memory
US20050152179A1 (en) * 2004-01-10 2005-07-14 Honeywell International Inc. Bias-adjusted magnetoresistive devices for magnetic random access memory (MRAM) applications
US20060039188A1 (en) * 2004-08-23 2006-02-23 Kochan Ju Magnetic random access memory with stacked memory layers having access lines for writing and reading
US6992910B1 (en) * 2004-11-18 2006-01-31 Maglabs, Inc. Magnetic random access memory with three or more stacked toggle memory cells and method for writing a selected cell

Also Published As

Publication number Publication date
TW200844997A (en) 2008-11-16
US7894228B2 (en) 2011-02-22
EP2070089B1 (en) 2012-09-12
WO2008040561A3 (en) 2008-05-22
US7791917B2 (en) 2010-09-07
WO2008040561A2 (en) 2008-04-10
US20080084724A1 (en) 2008-04-10
EP2070089A2 (en) 2009-06-17
US7518897B2 (en) 2009-04-14
JP2010506341A (ja) 2010-02-25
US20090109719A1 (en) 2009-04-30
JP5604107B2 (ja) 2014-10-08
US20090213632A1 (en) 2009-08-27

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