CN1303098A - Mtj堆栈式单元存储器检测方法及装置 - Google Patents
Mtj堆栈式单元存储器检测方法及装置 Download PDFInfo
- Publication number
- CN1303098A CN1303098A CN00135059A CN00135059A CN1303098A CN 1303098 A CN1303098 A CN 1303098A CN 00135059 A CN00135059 A CN 00135059A CN 00135059 A CN00135059 A CN 00135059A CN 1303098 A CN1303098 A CN 1303098A
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- China
- Prior art keywords
- cell stack
- unit
- addressed
- cellar
- electric current
- 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
-
- 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
-
- 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
- G11C11/56—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
- G11C11/5607—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using magnetic storage elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2211/00—Indexing scheme relating to digital stores characterized by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C2211/56—Indexing scheme relating to G11C11/56 and sub-groups for features not covered by these groups
- G11C2211/561—Multilevel memory cell aspects
- G11C2211/5615—Multilevel magnetic memory cell using non-magnetic non-conducting interlayer, e.g. MTJ
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Semiconductor Memories (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Hall/Mr Elements (AREA)
Abstract
Description
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/456,615 US6169689B1 (en) | 1999-12-08 | 1999-12-08 | MTJ stacked cell memory sensing method and apparatus |
US09/456,615 | 1999-12-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1303098A true CN1303098A (zh) | 2001-07-11 |
CN1199184C CN1199184C (zh) | 2005-04-27 |
Family
ID=23813473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB001350595A Expired - Fee Related CN1199184C (zh) | 1999-12-08 | 2000-12-07 | Mtj堆栈式单元存储器检测方法及装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6169689B1 (zh) |
EP (1) | EP1107258A1 (zh) |
JP (1) | JP2001229665A (zh) |
KR (1) | KR100798092B1 (zh) |
CN (1) | CN1199184C (zh) |
SG (1) | SG91315A1 (zh) |
TW (1) | TW487905B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1308960C (zh) * | 2002-05-15 | 2007-04-04 | 株式会社东芝 | 磁随机存取存储器及其写入方法 |
CN1783337B (zh) * | 2001-11-30 | 2011-06-15 | 株式会社东芝 | 磁随机存取存储器 |
Families Citing this family (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1134743A3 (en) * | 2000-03-13 | 2002-04-10 | Matsushita Electric Industrial Co., Ltd. | Magneto-resistive device and magneto-resistive effect type storage device |
JP2002334971A (ja) * | 2001-05-09 | 2002-11-22 | Nec Corp | 磁性メモリ及びその動作方法 |
WO2002103798A1 (fr) * | 2001-06-19 | 2002-12-27 | Matsushita Electric Industrial Co., Ltd. | Memoire magnetique et procede de commande associe, ainsi qu'appareil de memoire magnetique comprenant celle-ci |
JP2003091987A (ja) * | 2001-09-18 | 2003-03-28 | Sony Corp | 磁気メモリ装置及びその記録制御方法 |
JP2003101098A (ja) * | 2001-09-20 | 2003-04-04 | Ken Takahashi | トンネル型磁気抵抗素子とそれを用いた磁気式デバイス及びその製造方法並びに製造装置 |
US6545906B1 (en) * | 2001-10-16 | 2003-04-08 | Motorola, Inc. | Method of writing to scalable magnetoresistance random access memory element |
KR20030034500A (ko) * | 2001-10-23 | 2003-05-09 | 주식회사 하이닉스반도체 | 마그네틱 램 |
US6944048B2 (en) * | 2001-11-29 | 2005-09-13 | Kabushiki Kaisha Toshiba | Magnetic random access memory |
US6795336B2 (en) * | 2001-12-07 | 2004-09-21 | Hynix Semiconductor Inc. | Magnetic random access memory |
US6795334B2 (en) * | 2001-12-21 | 2004-09-21 | Kabushiki Kaisha Toshiba | Magnetic random access memory |
JP2003196973A (ja) * | 2001-12-21 | 2003-07-11 | Mitsubishi Electric Corp | 薄膜磁性体記憶装置 |
KR100457159B1 (ko) * | 2001-12-26 | 2004-11-16 | 주식회사 하이닉스반도체 | 마그네틱 램 |
US6650562B2 (en) * | 2002-01-23 | 2003-11-18 | Hewlett-Packard Development Company, L.P. | System and method for determining the logic state of a memory cell in a magnetic tunnel junction memory device |
US7095646B2 (en) * | 2002-07-17 | 2006-08-22 | Freescale Semiconductor, Inc. | Multi-state magnetoresistance random access cell with improved memory storage density |
US6654278B1 (en) * | 2002-07-31 | 2003-11-25 | Motorola, Inc. | Magnetoresistance random access memory |
US6667901B1 (en) * | 2003-04-29 | 2003-12-23 | Hewlett-Packard Development Company, L.P. | Dual-junction magnetic memory device and read method |
US6714446B1 (en) * | 2003-05-13 | 2004-03-30 | Motorola, Inc. | Magnetoelectronics information device having a compound magnetic free layer |
US6956763B2 (en) * | 2003-06-27 | 2005-10-18 | Freescale Semiconductor, Inc. | MRAM element and methods for writing the MRAM element |
US6967366B2 (en) * | 2003-08-25 | 2005-11-22 | Freescale Semiconductor, Inc. | Magnetoresistive random access memory with reduced switching field variation |
US6985383B2 (en) * | 2003-10-20 | 2006-01-10 | Taiwan Semiconductor Manufacturing Company, Ltd. | Reference generator for multilevel nonlinear resistivity memory storage elements |
US6958502B2 (en) * | 2003-10-22 | 2005-10-25 | International Business Machines Corporation | Magnetic random access memory cell |
US6925000B2 (en) * | 2003-12-12 | 2005-08-02 | Maglabs, Inc. | Method and apparatus for a high density magnetic random access memory (MRAM) with stackable architecture |
JP2005310840A (ja) * | 2004-04-16 | 2005-11-04 | Toshiba Corp | 磁気ランダムアクセスメモリ |
US7061037B2 (en) * | 2004-07-06 | 2006-06-13 | Maglabs, Inc. | Magnetic random access memory with multiple memory layers and improved memory cell selectivity |
US20060262593A1 (en) * | 2004-07-27 | 2006-11-23 | Stephane Aouba | Magnetic memory composition and method of manufacture |
CA2573406A1 (en) * | 2004-07-27 | 2006-02-02 | University Of Toronto | Tunable magnetic switch |
US7075818B2 (en) * | 2004-08-23 | 2006-07-11 | Maglabs, Inc. | Magnetic random access memory with stacked memory layers having access lines for writing and reading |
KR100669363B1 (ko) | 2004-10-26 | 2007-01-16 | 삼성전자주식회사 | 메모리 장치의 읽기 방법 |
US7129098B2 (en) * | 2004-11-24 | 2006-10-31 | Freescale Semiconductor, Inc. | Reduced power magnetoresistive random access memory elements |
US7173848B2 (en) * | 2005-02-01 | 2007-02-06 | Meglabs, Inc. | Magnetic random access memory with memory cell stacks having more than two magnetic states |
US7285836B2 (en) * | 2005-03-09 | 2007-10-23 | Maglabs, Inc. | Magnetic random access memory with stacked memory cells having oppositely-directed hard-axis biasing |
US7701756B2 (en) | 2005-12-21 | 2010-04-20 | Governing Council Of The University Of Toronto | Magnetic memory composition and method of manufacture |
US8183652B2 (en) * | 2007-02-12 | 2012-05-22 | Avalanche Technology, Inc. | Non-volatile magnetic memory with low switching current and high thermal stability |
US20070253245A1 (en) * | 2006-04-27 | 2007-11-01 | Yadav Technology | High Capacity Low Cost Multi-Stacked Cross-Line Magnetic Memory |
US7732881B2 (en) * | 2006-11-01 | 2010-06-08 | Avalanche Technology, Inc. | Current-confined effect of magnetic nano-current-channel (NCC) for magnetic random access memory (MRAM) |
US8084835B2 (en) * | 2006-10-20 | 2011-12-27 | Avalanche Technology, Inc. | Non-uniform switching based non-volatile magnetic based memory |
US8535952B2 (en) * | 2006-02-25 | 2013-09-17 | Avalanche Technology, Inc. | Method for manufacturing non-volatile magnetic memory |
US8018011B2 (en) * | 2007-02-12 | 2011-09-13 | Avalanche Technology, Inc. | Low cost multi-state magnetic memory |
US8063459B2 (en) * | 2007-02-12 | 2011-11-22 | Avalanche Technologies, Inc. | Non-volatile magnetic memory element with graded layer |
US20080246104A1 (en) * | 2007-02-12 | 2008-10-09 | Yadav Technology | High Capacity Low Cost Multi-State Magnetic Memory |
US8363457B2 (en) * | 2006-02-25 | 2013-01-29 | Avalanche Technology, Inc. | Magnetic memory sensing circuit |
US8508984B2 (en) * | 2006-02-25 | 2013-08-13 | Avalanche Technology, Inc. | Low resistance high-TMR magnetic tunnel junction and process for fabrication thereof |
US8058696B2 (en) * | 2006-02-25 | 2011-11-15 | Avalanche Technology, Inc. | High capacity low cost multi-state magnetic memory |
US8120949B2 (en) * | 2006-04-27 | 2012-02-21 | Avalanche Technology, Inc. | Low-cost non-volatile flash-RAM memory |
EP1863034B1 (en) * | 2006-05-04 | 2011-01-05 | Hitachi, Ltd. | Magnetic memory device |
US20090218645A1 (en) * | 2007-02-12 | 2009-09-03 | Yadav Technology Inc. | multi-state spin-torque transfer magnetic random access memory |
US8542524B2 (en) * | 2007-02-12 | 2013-09-24 | Avalanche Technology, Inc. | Magnetic random access memory (MRAM) manufacturing process for a small magnetic tunnel junction (MTJ) design with a low programming current requirement |
US7869266B2 (en) * | 2007-10-31 | 2011-01-11 | Avalanche Technology, Inc. | Low current switching magnetic tunnel junction design for magnetic memory using domain wall motion |
KR101422093B1 (ko) * | 2007-10-10 | 2014-07-28 | 한국과학기술원 | Tmr 소자를 이용한 ad 컨버터 |
JP5065940B2 (ja) * | 2008-02-28 | 2012-11-07 | 株式会社東芝 | 磁気記憶装置 |
US8802451B2 (en) | 2008-02-29 | 2014-08-12 | Avalanche Technology Inc. | Method for manufacturing high density non-volatile magnetic memory |
KR101057725B1 (ko) * | 2008-12-31 | 2011-08-18 | 주식회사 하이닉스반도체 | 멀티 레벨 셀 데이터 센싱 장치 및 그 방법 |
US8750032B2 (en) | 2010-04-28 | 2014-06-10 | Hitachi, Ltd. | Semiconductor recording device |
KR101251417B1 (ko) * | 2010-07-16 | 2013-04-05 | 경상대학교산학협력단 | 자기 랜덤 액세스 메모리 장치 및 그것의 쓰기 방법 |
US10497713B2 (en) * | 2010-11-18 | 2019-12-03 | Monolithic 3D Inc. | 3D semiconductor memory device and structure |
WO2013047213A1 (ja) * | 2011-09-27 | 2013-04-04 | 日本電気株式会社 | 不揮発抵抗ネットワーク集合体、および、それを用いた障害耐性を高めた不揮発論理ゲート |
JP5754366B2 (ja) * | 2011-12-14 | 2015-07-29 | 富士通株式会社 | 磁気メモリ装置及びその読み出し方法 |
JP2013149309A (ja) * | 2012-01-18 | 2013-08-01 | Fujitsu Ltd | 磁気メモリ装置、および、磁気メモリ装置のデータ書き込み方法 |
US9047964B2 (en) * | 2012-08-20 | 2015-06-02 | Qualcomm Incorporated | Multi-level memory cell using multiple magnetic tunnel junctions with varying MGO thickness |
KR102169681B1 (ko) | 2013-12-16 | 2020-10-26 | 삼성전자주식회사 | 감지 증폭기, 그것을 포함하는 불휘발성 메모리 장치 및 그것의 센싱 방법 |
US9548096B1 (en) * | 2015-08-26 | 2017-01-17 | Qualcomm Incorporated | Reverse complement magnetic tunnel junction (MTJ) bit cells employing shared source lines, and related methods |
JP2020047703A (ja) * | 2018-09-18 | 2020-03-26 | キオクシア株式会社 | 磁気記憶装置 |
WO2021152338A1 (en) * | 2020-01-28 | 2021-08-05 | Micron Technology, Inc. | Analog storage using memory device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884235A (en) * | 1988-07-19 | 1989-11-28 | Thiele Alfred A | Micromagnetic memory package |
US5546068A (en) * | 1994-12-22 | 1996-08-13 | At&T Corp. | Sense amplifier |
US5640343A (en) * | 1996-03-18 | 1997-06-17 | International Business Machines Corporation | Magnetic memory array using magnetic tunnel junction devices in the memory cells |
US5734605A (en) * | 1996-09-10 | 1998-03-31 | Motorola, Inc. | Multi-layer magnetic tunneling junction memory cells |
US5831920A (en) * | 1997-10-14 | 1998-11-03 | Motorola, Inc. | GMR device having a sense amplifier protected by a circuit for dissipating electric charges |
US5930164A (en) * | 1998-02-26 | 1999-07-27 | Motorola, Inc. | Magnetic memory unit having four states and operating method thereof |
JP4226679B2 (ja) * | 1998-03-23 | 2009-02-18 | 株式会社東芝 | 磁気記憶装置 |
US5986925A (en) * | 1998-04-07 | 1999-11-16 | Motorola, Inc. | Magnetoresistive random access memory device providing simultaneous reading of two cells and operating method |
EP0959475A3 (en) * | 1998-05-18 | 2000-11-08 | Canon Kabushiki Kaisha | Magnetic thin film memory and recording and reproducing method and apparatus using such a memory |
US5946227A (en) * | 1998-07-20 | 1999-08-31 | Motorola, Inc. | Magnetoresistive random access memory with shared word and digit lines |
DE19853447A1 (de) * | 1998-11-19 | 2000-05-25 | Siemens Ag | Magnetischer Speicher |
-
1999
- 1999-12-08 US US09/456,615 patent/US6169689B1/en not_active Expired - Lifetime
-
2000
- 2000-11-20 TW TW089124537A patent/TW487905B/zh active
- 2000-12-04 EP EP00126641A patent/EP1107258A1/en not_active Withdrawn
- 2000-12-06 KR KR1020000073749A patent/KR100798092B1/ko not_active IP Right Cessation
- 2000-12-07 CN CNB001350595A patent/CN1199184C/zh not_active Expired - Fee Related
- 2000-12-08 SG SG200007283A patent/SG91315A1/en unknown
- 2000-12-08 JP JP2000374139A patent/JP2001229665A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1783337B (zh) * | 2001-11-30 | 2011-06-15 | 株式会社东芝 | 磁随机存取存储器 |
CN1308960C (zh) * | 2002-05-15 | 2007-04-04 | 株式会社东芝 | 磁随机存取存储器及其写入方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1199184C (zh) | 2005-04-27 |
TW487905B (en) | 2002-05-21 |
SG91315A1 (en) | 2002-09-17 |
EP1107258A1 (en) | 2001-06-13 |
JP2001229665A (ja) | 2001-08-24 |
KR20010062167A (ko) | 2001-07-07 |
KR100798092B1 (ko) | 2008-01-28 |
US6169689B1 (en) | 2001-01-02 |
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Legal Events
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ASS | Succession or assignment of patent right |
Owner name: FREEDOM SEMICONDUCTORS CO. Free format text: FORMER OWNER: MOTOROLA, INC. Effective date: 20040820 |
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Effective date of registration: 20040820 Address after: Texas in the United States Applicant after: FreeScale Semiconductor Address before: Illinois Instrunment Applicant before: Motorola, Inc. |
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C14 | Grant of patent or utility model | ||
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Effective date of registration: 20090306 Address after: Arizona USA Patentee after: EVERSPIN TECHNOLOGIES, Inc. Address before: Texas in the United States Patentee before: FreeScale Semiconductor |
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Owner name: EVERSPIN TECHNOLOGIES, INC. Free format text: FORMER OWNER: FREEDOM SEMICONDUCTORS CO. Effective date: 20090306 |
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Granted publication date: 20050427 Termination date: 20111207 |