JP2012504349A - 電子的反射性絶縁スペーサを有する磁束閉鎖stram - Google Patents
電子的反射性絶縁スペーサを有する磁束閉鎖stram Download PDFInfo
- Publication number
- JP2012504349A JP2012504349A JP2011529345A JP2011529345A JP2012504349A JP 2012504349 A JP2012504349 A JP 2012504349A JP 2011529345 A JP2011529345 A JP 2011529345A JP 2011529345 A JP2011529345 A JP 2011529345A JP 2012504349 A JP2012504349 A JP 2012504349A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- electrically insulating
- memory unit
- spin injection
- torque memory
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 160
- 230000004907 flux Effects 0.000 title claims abstract description 30
- 125000006850 spacer group Chemical group 0.000 title abstract description 32
- 230000015654 memory Effects 0.000 claims abstract description 75
- 238000002347 injection Methods 0.000 claims abstract description 66
- 239000007924 injection Substances 0.000 claims abstract description 66
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 230000005294 ferromagnetic effect Effects 0.000 claims description 55
- 230000005290 antiferromagnetic effect Effects 0.000 claims description 29
- 229910052707 ruthenium Inorganic materials 0.000 claims description 8
- 230000005641 tunneling Effects 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 271
- 230000005415 magnetization Effects 0.000 description 34
- 239000000463 material Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 12
- 239000003302 ferromagnetic material Substances 0.000 description 9
- 229910019041 PtMn Inorganic materials 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 4
- 229910052763 palladium Inorganic materials 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000009812 interlayer coupling reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/82—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by variation of the magnetic field applied to the device
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
Abstract
Description
広がるコンピュータおよび携帯/通信産業の急速な成長は、高容量の不揮発性ソリッドステートデータ記憶素子に対する爆発的な需要を生み出している。不揮発性メモリ、特にフラッシュメモリは、DRAMに代わりメモリ市場の最大のシェアを占めると考えられている。しかしながらフラッシュメモリは、遅いアクセス速度(〜msの書込および〜50−100nsの読出)、制限された耐久性(〜103−104のプログラミング回数)、およびシステムオンチップ(SoC)に集積化することの難しさといったような、いくつかの欠点を有する。フラッシュメモリ(NANDまたはNOR)は、また、32nmノード、および、それより先での重要なスケーリング問題に直面する。
本開示は、反射性絶縁スペーサを含む磁束閉鎖スピン注入トルクメモリユニットに関連する。反射性絶縁スペーサは、電気的絶縁電子的反射層とも呼ばれる。電気的絶縁電子的反射層は、スピン電子を自由層にはね返し、自由層の磁化方向の切り替えを支援し、それによって、スピン注入トルクメモリユニットに対して要求されるスイッチング電流を低減する。
本開示は、添付の図面と関連して、以下に続く本開示のさまざまな実施形態の詳細な説明を考慮することで、より完全に理解され得る。
以下の説明において、説明の一部を形成する添付の図面の組が参照され、図面においては、図示によって、いくつかの特定の実施形態が示される。他の実施形態が意図されるとともに、本開示の範囲または精神から逸脱することなくなされ得るということが理解されるべきである。したがって、以下の詳細な説明は限定する意味で解釈されるべきではない。本明細書で与えられる定義は、本明細書で頻繁に用いられる特定の用語の理解を容易にするためのものであり、本開示の範囲を制限することを意味するものではない。
Claims (20)
- 電気的絶縁電子的反射層を介して第2自由磁性層に反強磁性的に連結された第1自由磁性層を含む多層自由磁性素子と、
リファレンス磁性層と、
リファレンス磁性層から前記自由磁性素子を隔てる電気的絶縁非磁性トンネルバリヤ層とを含む、スピン注入トルクメモリユニット。 - 前記電気的絶縁電子的反射層は、不均一の厚さを有する、請求項1に記載のスピン注入トルクメモリユニット
- 前記電気的絶縁電子的反射層は、3〜15オングストロームの範囲にある厚さ値を有する、請求項1に記載のスピン注入トルクメモリユニット。
- 前記電気的絶縁電子的反射層は、MgO、CuO、TiO、AlO、TaO、TaNまたはSiNを含む、請求項1に記載のスピン注入トルクメモリユニット。
- 前記電気的絶縁電子的反射層は、1〜10オームμm2の面積抵抗を有する、請求項1に記載のスピン注入トルクメモリユニット。
- 前記リファレンス磁性層は、合成反強磁性素子を含む、請求項1に記載のスピン注入トルクメモリユニット。
- 前記多層自由磁性素子は、前記電気的絶縁電子的反射層を前記第1自由磁性層または前記第2自由磁性層のうちの1つから隔てる電導非磁性層をさらに含む、請求項1に記載のスピン注入トルクメモリユニット。
- 前記多層自由磁性素子は第2の電気的絶縁電子的反射層をさらに含み、前記電導非磁性層は、前記電気的絶縁電子的反射層を前記第2の電気的絶縁電子的反射層から隔てる、請求項7に記載のスピン注入トルクメモリユニット。
- 前記電導非磁性層は、5〜20オングストロームの範囲にある厚さ値を有する、請求項7に記載のスピン注入トルクメモリユニット。
- 前記電導非磁性層は、Ta、Cu、Ru、またはAuを含む、請求項7に記載のスピン注入トルクメモリユニット。
- 電気的絶縁電子的反射層および電導非強磁性層を介して第2自由磁性層に反強磁性的に連結された第1自由磁性層を含む多層自由磁性素子と、
リファレンス磁性層と、
前記自由磁性素子を前記リファレンス磁性層から隔てる.電気的絶縁非磁性トンネルバリヤ層とを含む、磁束閉鎖スピン注入トルクメモリユニット。 - 前記電気的絶縁電子的反射層は、不均一の厚さを有する、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット、
- 前記電気的絶縁電子的反射層は、3〜15オングストロームの範囲にある厚さ値を有する、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット、
- 前記電気的絶縁電子的反射層は、MgO、CuO、TiO、AlO、TaO、TaN、またはSiNを含む、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット。
- 前記電気的絶縁電子的反射層は、1〜10オームμm2の面積抵抗を有する、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット。
- 前記リファレンス磁性層は、合成反強磁性素子を含む、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット、
- 前記多層自由磁性素子は、第2の電気的絶縁電子的反射層をさらに含み、前記電導非磁性層は、前記電気的絶縁電子的反射層を前記第2の電気的絶縁電子的反射層から隔てる、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット。
- 前記電導非強磁性層は、5〜20オングストロームの範囲にある厚さ値を有する、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット。
- 前記電導非磁性層は、Ta、Cu、Ru、またはAuを含む、請求項11に記載の磁束閉鎖スピン注入トルクメモリユニット。
- 3〜15オングストロームの範囲にある厚さを有し、MgO、CuO、TiO、AlO、TaO、TaN、またはSiNを含む電気的絶縁電子的反射層を介して第2自由磁性層に反強磁性的に連結された第1自由磁性層を含む多層自由磁性素子と、
合成反強磁性素子を含むリファレンス磁性層と、
前記自由磁性素子を前記リファレンス磁性層から隔てる.電気的絶縁非磁性トンネルバリヤ層とを含む、磁束閉鎖スピン注入トルクメモリユニット。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/239,884 | 2008-09-29 | ||
US12/239,884 US7985994B2 (en) | 2008-09-29 | 2008-09-29 | Flux-closed STRAM with electronically reflective insulative spacer |
PCT/US2009/058756 WO2010037090A2 (en) | 2008-09-29 | 2009-09-29 | Flux-closed stram with electronically reflective insulative spacer |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012504349A true JP2012504349A (ja) | 2012-02-16 |
JP5667982B2 JP5667982B2 (ja) | 2015-02-12 |
Family
ID=41394852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011529345A Expired - Fee Related JP5667982B2 (ja) | 2008-09-29 | 2009-09-29 | 電子的反射性絶縁スペーサを有する磁束閉鎖stram |
Country Status (6)
Country | Link |
---|---|
US (3) | US7985994B2 (ja) |
EP (1) | EP2342716B1 (ja) |
JP (1) | JP5667982B2 (ja) |
KR (1) | KR101308605B1 (ja) |
CN (1) | CN102216995B (ja) |
WO (1) | WO2010037090A2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013513255A (ja) * | 2009-12-08 | 2013-04-18 | クアルコム,インコーポレイテッド | 磁気トンネル接合デバイス |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009054062A1 (ja) * | 2007-10-26 | 2009-04-30 | Canon Anelva Corporation | サンドイッチ構造の磁化自由層を有する磁気トンネル接合素子 |
US7999336B2 (en) | 2008-04-24 | 2011-08-16 | Seagate Technology Llc | ST-RAM magnetic element configurations to reduce switching current |
US9929211B2 (en) * | 2008-09-24 | 2018-03-27 | Qualcomm Incorporated | Reducing spin pumping induced damping of a free layer of a memory device |
US7880209B2 (en) * | 2008-10-09 | 2011-02-01 | Seagate Technology Llc | MRAM cells including coupled free ferromagnetic layers for stabilization |
JP2012014787A (ja) * | 2010-06-30 | 2012-01-19 | Sony Corp | 記憶装置 |
US8772886B2 (en) * | 2010-07-26 | 2014-07-08 | Avalanche Technology, Inc. | Spin transfer torque magnetic random access memory (STTMRAM) having graded synthetic free layer |
JP2012238631A (ja) * | 2011-05-10 | 2012-12-06 | Sony Corp | 記憶素子、記憶装置 |
KR101195041B1 (ko) * | 2011-05-12 | 2012-10-31 | 고려대학교 산학협력단 | 자기 공명 세차 현상을 이용한 스핀전달토크 자기 메모리 소자 |
US8493695B1 (en) | 2011-06-28 | 2013-07-23 | Western Digital (Fremont), Llc | Method and system for providing a magnetic read transducer having an improved signal to noise ratio |
JP2013115319A (ja) * | 2011-11-30 | 2013-06-10 | Sony Corp | 記憶素子、記憶装置 |
US8890267B2 (en) | 2012-12-03 | 2014-11-18 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic junctions having a graded magnetic free layer |
US9029965B2 (en) | 2012-12-03 | 2015-05-12 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic junctions having a thermally stable and easy to switch magnetic free layer |
US9263189B2 (en) * | 2013-04-23 | 2016-02-16 | Alexander Mikhailovich Shukh | Magnetic capacitor |
US10989769B2 (en) * | 2013-12-27 | 2021-04-27 | Infineon Technologies Ag | Magneto-resistive structured device having spontaneously generated in-plane closed flux magnetization pattern |
US9792971B2 (en) | 2014-07-02 | 2017-10-17 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic junctions with rare earth-transition metal layers |
EP3314674A4 (en) * | 2015-06-26 | 2019-02-27 | Intel Corporation | VERTICAL MAGNETIC MEMORY WITH REDUCED SWITCHGEAR |
CN105374935B (zh) * | 2015-12-01 | 2018-10-09 | 中电海康集团有限公司 | 一种用于stt-mram的含有不均匀势垒层的磁性隧道结 |
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 |
DE102017112546B4 (de) * | 2017-06-07 | 2021-07-08 | Infineon Technologies Ag | Magnetoresistive Sensoren mit Magnetisierungsmustern mit geschlossenem Fluss |
US10686123B2 (en) * | 2018-08-16 | 2020-06-16 | International Business Machines Corporation | Multilayered magnetic free layer structure for spin-transfer torque (STT) MRAM |
CN112490353A (zh) * | 2019-09-11 | 2021-03-12 | 上海磁宇信息科技有限公司 | 一种磁性随机存储器存储单元及磁性随机存储器 |
CN112750945A (zh) * | 2019-10-31 | 2021-05-04 | 上海磁宇信息科技有限公司 | 一种具双自由层的磁性随机存储器存储单元 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4006A (en) * | 1845-04-22 | Improvement in self-adjusting platens for cotton and other presses | ||
JP2003229544A (ja) * | 2002-02-04 | 2003-08-15 | Mitsubishi Electric Corp | 磁気記憶装置 |
US6765819B1 (en) * | 2002-07-25 | 2004-07-20 | Hewlett-Packard Development Company, Lp. | Magnetic memory device having improved switching characteristics |
JP2006114868A (ja) * | 2004-09-17 | 2006-04-27 | Toshiba Corp | 磁気記録素子及びそれを用いた磁気記録装置 |
JP2007157840A (ja) * | 2005-12-01 | 2007-06-21 | Sony Corp | 記憶素子、メモリ |
WO2008100868A2 (en) * | 2007-02-12 | 2008-08-21 | Yadav Technology, Inc. | Non-uniform switching based non-volatile magnetic based memory |
JP2012519957A (ja) * | 2009-03-03 | 2012-08-30 | アバランチ テクノロジー, インコーポレイテッド | 多状態スピン注入磁気ランダムアクセスメモリ |
Family Cites Families (206)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6252797A (ja) | 1985-08-30 | 1987-03-07 | Mitsubishi Electric Corp | 半導体記憶装置 |
US5191223A (en) | 1991-07-03 | 1993-03-02 | International Business Machines Corporation | Device for selective magnetization and method |
KR0158485B1 (ko) | 1995-03-31 | 1999-02-01 | 김광호 | 본딩옵션용 워드라인전압 승압회로 |
US5646419A (en) | 1995-04-07 | 1997-07-08 | California Institute Of Technology | n-type wide bandgap semiconductors grown on a p-type layer to form hole injection pn heterojunctions and methods of fabricating the same |
US5761115A (en) | 1996-05-30 | 1998-06-02 | Axon Technologies Corporation | Programmable metallization cell structure and method of making same |
US6602677B1 (en) | 1997-09-19 | 2003-08-05 | Promega Corporation | Thermostable luciferases and methods of production |
US5920446A (en) | 1998-01-06 | 1999-07-06 | International Business Machines Corporation | Ultra high density GMR sensor |
US6072718A (en) | 1998-02-10 | 2000-06-06 | International Business Machines Corporation | Magnetic memory devices having multiple magnetic tunnel junctions therein |
JP3672435B2 (ja) | 1998-04-22 | 2005-07-20 | 富士通株式会社 | 不揮発性メモリ装置 |
US6252796B1 (en) | 1998-08-14 | 2001-06-26 | U.S. Philips Corporation | Device comprising a first and a second ferromagnetic layer separated by a non-magnetic spacer layer |
US6178136B1 (en) | 1998-09-28 | 2001-01-23 | Texas Instruments Incorporated | Semiconductor memory device having Y-select gate voltage that varies according to memory cell access operation |
JP2000132961A (ja) | 1998-10-23 | 2000-05-12 | Canon Inc | 磁気薄膜メモリ、磁気薄膜メモリの読出し方法、及び磁気薄膜メモリの書込み方法 |
US6985378B2 (en) | 1998-12-04 | 2006-01-10 | Axon Technologies Corporation | Programmable microelectronic device, structure, and system and method of forming the same |
JP4144824B2 (ja) | 1999-03-26 | 2008-09-03 | キヤノン株式会社 | 半導体集積回路装置の故障箇所特定方法 |
US6542000B1 (en) | 1999-07-30 | 2003-04-01 | Iowa State University Research Foundation, Inc. | Nonvolatile programmable logic devices |
GB9925213D0 (en) | 1999-10-25 | 1999-12-22 | Univ Cambridge Tech | Magnetic logic elements |
US6469926B1 (en) | 2000-03-22 | 2002-10-22 | Motorola, Inc. | Magnetic element with an improved magnetoresistance ratio and fabricating method thereof |
US6381106B1 (en) | 2000-04-12 | 2002-04-30 | International Business Machines Corporation | Top spin valve sensor that has a free layer structure with a cobalt iron boron (cofeb) layer |
US6700753B2 (en) | 2000-04-12 | 2004-03-02 | Seagate Technology Llc | Spin valve structures with specular reflection layers |
TW504713B (en) | 2000-04-28 | 2002-10-01 | Motorola Inc | Magnetic element with insulating veils and fabricating method thereof |
US6979586B2 (en) | 2000-10-06 | 2005-12-27 | Headway Technologies, Inc. | Magnetic random access memory array with coupled soft adjacent magnetic layer |
US6574079B2 (en) | 2000-11-09 | 2003-06-03 | Tdk Corporation | Magnetic tunnel junction device and method including a tunneling barrier layer formed by oxidations of metallic alloys |
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 |
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 |
US6473279B2 (en) | 2001-01-04 | 2002-10-29 | International Business Machines Corporation | In-stack single-domain stabilization of free layers for CIP and CPP spin-valve or tunnel-valve read heads |
US6584016B2 (en) | 2001-01-08 | 2003-06-24 | Azalea Microelectronics Corporation | Non-volatile memory architecture and method of operation |
JP3677455B2 (ja) | 2001-02-13 | 2005-08-03 | Necエレクトロニクス株式会社 | 不揮発性磁気記憶装置およびその製造方法 |
EP1374310A4 (en) | 2001-03-14 | 2008-02-20 | Univ Massachusetts | NANOFABRICATION |
US6744086B2 (en) | 2001-05-15 | 2004-06-01 | Nve Corporation | Current switched magnetoresistive memory cell |
JP3565268B2 (ja) | 2001-06-22 | 2004-09-15 | 株式会社東芝 | 磁気抵抗効果素子、磁気ヘッド及び磁気再生装置 |
US6569745B2 (en) | 2001-06-28 | 2003-05-27 | Sharp Laboratories Of America, Inc. | Shared bit line cross point memory array |
US6809909B2 (en) | 2001-07-16 | 2004-10-26 | Seagate Technology Llc | Giant magnetoresistive sensor with high-resistivity magnetic layers |
US6781801B2 (en) | 2001-08-10 | 2004-08-24 | Seagate Technology Llc | Tunneling magnetoresistive sensor with spin polarized current injection |
US6888703B2 (en) | 2001-09-17 | 2005-05-03 | Headway Technologies, Inc. | Multilayered structures comprising magnetic nano-oxide layers for current perpindicular to plane GMR heads |
JP3834616B2 (ja) | 2001-11-13 | 2006-10-18 | 国立大学法人東北大学 | スピンフィルタ |
KR100450794B1 (ko) | 2001-12-13 | 2004-10-01 | 삼성전자주식회사 | 마그네틱 랜덤 엑세스 메모리 및 그 작동 방법 |
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 |
US6778421B2 (en) | 2002-03-14 | 2004-08-17 | Hewlett-Packard Development Company, Lp. | Memory device array having a pair of magnetic bits sharing a common conductor line |
JP4073691B2 (ja) | 2002-03-19 | 2008-04-09 | 株式会社ルネサステクノロジ | 半導体記憶装置 |
TWI222763B (en) | 2002-03-29 | 2004-10-21 | Toshiba Corp | Magnetic logic element and magnetic logic element array |
KR100476889B1 (ko) | 2002-04-04 | 2005-03-17 | 삼성전자주식회사 | 플래쉬메모리의 워드라인디코더 |
US6888709B2 (en) | 2002-05-03 | 2005-05-03 | Applied Energy Llc | Electromagnetic transient voltage surge suppression system |
US6711067B1 (en) | 2002-05-08 | 2004-03-23 | Virage Logic Corporation | System and method for bit line sharing |
KR20030089078A (ko) | 2002-05-16 | 2003-11-21 | 주식회사 하이닉스반도체 | 자기터널접합소자를 갖는 자기메모리셀 |
WO2003103137A1 (ja) | 2002-05-31 | 2003-12-11 | 富士通株式会社 | 増幅装置 |
US6633498B1 (en) | 2002-06-18 | 2003-10-14 | Motorola, Inc. | Magnetoresistive random access memory with reduced switching field |
US6781867B2 (en) | 2002-07-11 | 2004-08-24 | Micron Technology, Inc. | Embedded ROM device using substrate leakage |
US6850433B2 (en) | 2002-07-15 | 2005-02-01 | Hewlett-Packard Development Company, Lp. | Magnetic memory device and method |
US7196882B2 (en) | 2002-07-23 | 2007-03-27 | Micron Technology, Inc. | Magnetic tunnel junction device and its method of fabrication |
US6714444B2 (en) | 2002-08-06 | 2004-03-30 | Grandis, Inc. | Magnetic element utilizing spin transfer and an MRAM device using the magnetic element |
US6888742B1 (en) | 2002-08-28 | 2005-05-03 | Grandis, Inc. | Off-axis pinned layer magnetic element utilizing spin transfer and an MRAM device using the magnetic element |
US6759263B2 (en) | 2002-08-29 | 2004-07-06 | Chentsau Ying | Method of patterning a layer of magnetic material |
US6831312B2 (en) | 2002-08-30 | 2004-12-14 | Freescale Semiconductor, Inc. | Amorphous alloys for magnetic devices |
US6801415B2 (en) | 2002-08-30 | 2004-10-05 | Freescale Semiconductor, Inc. | Nanocrystalline layers for improved MRAM tunnel junctions |
US6711051B1 (en) | 2002-09-05 | 2004-03-23 | National Semiconductor Corporation | Static RAM architecture with bit line partitioning |
US6838740B2 (en) | 2002-09-27 | 2005-01-04 | Grandis, Inc. | Thermally stable magnetic elements utilizing spin transfer and an MRAM device using the magnetic element |
WO2004032157A1 (en) | 2002-09-30 | 2004-04-15 | Seagate Technology Llc | Suppression of thermal noise using spin transfer in magnetoresistive elements |
US6958927B1 (en) | 2002-10-09 | 2005-10-25 | Grandis Inc. | Magnetic element utilizing spin-transfer and half-metals and an MRAM device using the magnetic element |
US6639830B1 (en) | 2002-10-22 | 2003-10-28 | Btg International Ltd. | Magnetic memory device |
KR100536592B1 (ko) | 2002-11-01 | 2005-12-14 | 삼성전자주식회사 | 자기 메모리 및 그 제조 방법 |
JP2004179483A (ja) | 2002-11-28 | 2004-06-24 | Hitachi Ltd | 不揮発性磁気メモリ |
US6909633B2 (en) | 2002-12-09 | 2005-06-21 | Applied Spintronics Technology, Inc. | MRAM architecture with a flux closed data storage layer |
US7190611B2 (en) | 2003-01-07 | 2007-03-13 | Grandis, Inc. | Spin-transfer multilayer stack containing magnetic layers with resettable magnetization |
US6829161B2 (en) | 2003-01-10 | 2004-12-07 | Grandis, Inc. | Magnetostatically coupled magnetic elements utilizing spin transfer and an MRAM device using the magnetic element |
US6845038B1 (en) | 2003-02-01 | 2005-01-18 | Alla Mikhailovna Shukh | Magnetic tunnel junction memory device |
US6864551B2 (en) | 2003-02-05 | 2005-03-08 | Applied Spintronics Technology, Inc. | High density and high programming efficiency MRAM design |
US7126200B2 (en) | 2003-02-18 | 2006-10-24 | Micron Technology, Inc. | Integrated circuits with contemporaneously formed array electrodes and logic interconnects |
US6847547B2 (en) | 2003-02-28 | 2005-01-25 | Grandis, Inc. | Magnetostatically coupled magnetic elements utilizing spin transfer and an MRAM device using the magnetic element |
US6998150B2 (en) | 2003-03-12 | 2006-02-14 | Headway Technologies, Inc. | Method of adjusting CoFe free layer magnetostriction |
US6963500B2 (en) | 2003-03-14 | 2005-11-08 | Applied Spintronics Technology, Inc. | Magnetic tunneling junction cell array with shared reference layer for MRAM applications |
JP4008857B2 (ja) | 2003-03-24 | 2007-11-14 | 株式会社東芝 | 半導体記憶装置及びその製造方法 |
US7092279B1 (en) | 2003-03-24 | 2006-08-15 | Sheppard Douglas P | Shared bit line memory device and method |
US7067866B2 (en) | 2003-03-31 | 2006-06-27 | Applied Spintronics Technology, Inc. | MRAM architecture and a method and system for fabricating MRAM memories utilizing the architecture |
US7486548B2 (en) * | 2003-04-16 | 2009-02-03 | Agency For Science, Technology And Research | Magnetic memory device |
KR100522943B1 (ko) * | 2003-04-25 | 2005-10-25 | 학교법인고려중앙학원 | 소자 크기 변화에 무관하게 작고 안정한 바이어스 자기장을 갖는 자기 저항 구조 |
US6933155B2 (en) | 2003-05-21 | 2005-08-23 | Grandis, Inc. | Methods for providing a sub .15 micron magnetic memory structure |
US6834005B1 (en) | 2003-06-10 | 2004-12-21 | International Business Machines Corporation | Shiftable magnetic shift register and method of using the same |
US6885582B2 (en) | 2003-06-12 | 2005-04-26 | Hewlett-Packard Development Company, L.P. | Magnetic memory storage device |
US6818961B1 (en) | 2003-06-30 | 2004-11-16 | Freescale Semiconductor, Inc. | Oblique deposition to induce magnetic anisotropy for MRAM cells |
US7088624B2 (en) | 2003-07-18 | 2006-08-08 | Infineon Technologies, A.G. | System of multiplexed data lines in a dynamic random access memory |
US7245462B2 (en) | 2003-08-21 | 2007-07-17 | Grandis, Inc. | Magnetoresistive element having reduced spin transfer induced noise |
US6985385B2 (en) | 2003-08-26 | 2006-01-10 | Grandis, Inc. | Magnetic memory element utilizing spin transfer switching and storing multiple bits |
US6943040B2 (en) | 2003-08-28 | 2005-09-13 | Headway Technologes, Inc. | Magnetic random access memory designs with controlled magnetic switching mechanism by magnetostatic coupling |
US7009266B2 (en) | 2003-08-29 | 2006-03-07 | Applied Spintronics Technology, Inc. | Method and system for providing a magnetic element including passivation structures |
US7161829B2 (en) | 2003-09-19 | 2007-01-09 | Grandis, Inc. | Current confined pass layer for magnetic elements utilizing spin-transfer and an MRAM device using such magnetic elements |
US7116530B2 (en) | 2003-09-30 | 2006-10-03 | Hitachi Global Storage Technologies Netherlands B.V. | Thin differential spin valve sensor having both pinned and self pinned structures for reduced difficulty in AFM layer polarity setting |
JP2005116923A (ja) | 2003-10-10 | 2005-04-28 | Hitachi Ltd | スピントルクを用いた不揮発性磁気メモリセルおよびこれを用いた磁気ランダムアクセスメモリ |
US7009877B1 (en) | 2003-11-14 | 2006-03-07 | Grandis, Inc. | Three-terminal magnetostatically coupled spin transfer-based MRAM cell |
US7282755B2 (en) | 2003-11-14 | 2007-10-16 | Grandis, Inc. | Stress assisted current driven switching for magnetic memory applications |
US7093347B2 (en) | 2003-12-05 | 2006-08-22 | Seagate Technology Llc | Method of making a current-perpendicular to the plane (CPP) magnetoresistive (MR) sensor |
US7138648B2 (en) | 2003-12-17 | 2006-11-21 | Palo Alto Research Center Incorporated | Ultraviolet group III-nitride-based quantum well laser diodes |
US20050136600A1 (en) | 2003-12-22 | 2005-06-23 | Yiming Huai | Magnetic elements with ballistic magnetoresistance utilizing spin-transfer and an MRAM device using such magnetic elements |
US7072209B2 (en) | 2003-12-29 | 2006-07-04 | Micron Technology, Inc. | Magnetic memory having synthetic antiferromagnetic pinned layer |
US20050150537A1 (en) | 2004-01-13 | 2005-07-14 | Nanocoolers Inc. | Thermoelectric devices |
US20050150535A1 (en) | 2004-01-13 | 2005-07-14 | Nanocoolers, Inc. | Method for forming a thin-film thermoelectric device including a phonon-blocking thermal conductor |
US7105372B2 (en) | 2004-01-20 | 2006-09-12 | Headway Technologies, Inc. | Magnetic tunneling junction film structure with process determined in-plane magnetic anisotropy |
US7110287B2 (en) | 2004-02-13 | 2006-09-19 | Grandis, Inc. | Method and system for providing heat assisted switching of a magnetic element utilizing spin transfer |
US7242045B2 (en) | 2004-02-19 | 2007-07-10 | Grandis, Inc. | Spin transfer magnetic element having low saturation magnetization free layers |
US6967863B2 (en) | 2004-02-25 | 2005-11-22 | Grandis, Inc. | Perpendicular magnetization magnetic element utilizing spin transfer |
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 |
US6965522B2 (en) | 2004-03-17 | 2005-11-15 | Macronix International Co., Ltd. | Tunneling diode magnetic junction memory |
WO2005101378A1 (en) | 2004-04-02 | 2005-10-27 | Tdk Corporation | Composite free layer for stabilizing magnetoresistive head |
WO2005101373A1 (en) | 2004-04-02 | 2005-10-27 | Tdk Corporation | Laminated free layer for stabilizing magnetoresistive head having low magnetostriction |
US7233039B2 (en) | 2004-04-21 | 2007-06-19 | Grandis, Inc. | Spin transfer magnetic elements with spin depolarization layers |
US7274057B2 (en) | 2004-04-26 | 2007-09-25 | International Business Machines Corporation | Techniques for spin-flop switching with offset field |
US7236336B2 (en) | 2004-04-30 | 2007-06-26 | Hitachi Global Storage Technologies Inc, Netherlands B.V. | Method and apparatus for providing a free layer having higher saturation field capability and optimum sensitivity |
US20050269612A1 (en) | 2004-05-11 | 2005-12-08 | Integrated Magnetoelectronics | Solid-state component based on current-induced magnetization reversal |
US7088609B2 (en) | 2004-05-11 | 2006-08-08 | Grandis, Inc. | Spin barrier enhanced magnetoresistance effect element and magnetic memory using the same |
US7057921B2 (en) | 2004-05-11 | 2006-06-06 | Grandis, Inc. | Spin barrier enhanced dual magnetoresistance effect element and magnetic memory using the same |
JP4377751B2 (ja) | 2004-06-10 | 2009-12-02 | シャープ株式会社 | クロスポイント構造の半導体記憶装置及びその製造方法 |
US7098494B2 (en) | 2004-06-16 | 2006-08-29 | Grandis, Inc. | Re-configurable logic elements using heat assisted magnetic tunneling elements |
US7411235B2 (en) | 2004-06-16 | 2008-08-12 | Kabushiki Kaisha Toshiba | Spin transistor, programmable logic circuit, and magnetic memory |
US7436632B2 (en) | 2004-06-30 | 2008-10-14 | Seagate Technology Llc | Differential/dual CPP recording head |
US7067330B2 (en) | 2004-07-16 | 2006-06-27 | Headway Technologies, Inc. | Magnetic random access memory array with thin conduction electrical read and write lines |
US7576956B2 (en) | 2004-07-26 | 2009-08-18 | Grandis Inc. | Magnetic tunnel junction having diffusion stop layer |
US7098495B2 (en) | 2004-07-26 | 2006-08-29 | Freescale Semiconducor, Inc. | Magnetic tunnel junction element structures and methods for fabricating the same |
DE102004041894B3 (de) | 2004-08-30 | 2006-03-09 | Infineon Technologies Ag | Speicherbauelement (CBRAM) mit Speicherzellen auf der Basis eines in seinem Widerstandswert änderbaren aktiven Festkörper-Elektrolytmaterials und Herstellungsverfahren dafür |
US7369427B2 (en) | 2004-09-09 | 2008-05-06 | Grandis, Inc. | Magnetic elements with spin engineered insertion layers and MRAM devices using the magnetic elements |
US7336525B2 (en) | 2004-10-18 | 2008-02-26 | Kabushiki Kaisha Toshiba | Nonvolatile memory for logic circuits |
US7126202B2 (en) | 2004-11-16 | 2006-10-24 | Grandis, Inc. | Spin scattering and heat assisted switching of a magnetic element |
US7241631B2 (en) * | 2004-12-29 | 2007-07-10 | Grandis, Inc. | MTJ elements with high spin polarization layers configured for spin-transfer switching and spintronics devices using the magnetic elements |
US20060171197A1 (en) | 2005-01-31 | 2006-08-03 | Ulrich Klostermann | Magnetoresistive memory element having a stacked structure |
US7173848B2 (en) | 2005-02-01 | 2007-02-06 | Meglabs, Inc. | Magnetic random access memory with memory cell stacks having more than two magnetic states |
US7099186B1 (en) | 2005-02-10 | 2006-08-29 | Infineon Technologies Ag | Double-decker MRAM cells with scissor-state angled reference layer magnetic anisotropy and method for fabricating |
KR100632953B1 (ko) | 2005-03-07 | 2006-10-12 | 삼성전자주식회사 | 메모리 소자, 상기 메모리 소자를 위한 메모리 배열 및 상기 메모리 배열의 구동 방법 |
US7285836B2 (en) | 2005-03-09 | 2007-10-23 | Maglabs, Inc. | Magnetic random access memory with stacked memory cells having oppositely-directed hard-axis biasing |
US7241632B2 (en) | 2005-04-14 | 2007-07-10 | Headway Technologies, Inc. | MTJ read head with sidewall spacers |
JP2006294191A (ja) | 2005-04-14 | 2006-10-26 | Toshiba Corp | 磁気ランダムアクセスメモリのデータ読み出し方法 |
US7230265B2 (en) | 2005-05-16 | 2007-06-12 | International Business Machines Corporation | Spin-polarization devices using rare earth-transition metal alloys |
US7289356B2 (en) | 2005-06-08 | 2007-10-30 | Grandis, Inc. | Fast magnetic memory devices utilizing spin transfer and magnetic elements used therein |
US7236791B2 (en) | 2005-06-30 | 2007-06-26 | Lucent Technologies Inc. | Radio channel allocation for national security and emergency preparedness calls |
US7518835B2 (en) | 2005-07-01 | 2009-04-14 | Grandis, Inc. | Magnetic elements having a bias field and magnetic memory devices using the magnetic elements |
JP4504273B2 (ja) | 2005-07-06 | 2010-07-14 | 株式会社東芝 | 磁気抵抗効果素子および磁気メモリ |
US7411765B2 (en) | 2005-07-18 | 2008-08-12 | Hitachi Global Storage Technologies Netherlands B.V. | CPP-GMR sensor with non-orthogonal free and reference layer magnetization orientation |
KR100725380B1 (ko) | 2005-07-28 | 2007-06-07 | 삼성전자주식회사 | 반도체 메모리 장치의 전압 발생 회로, 이를 포함하는반도체 메모리 장치 및 반도체 메모리 장치의 전압 발생방법 |
US7230845B1 (en) | 2005-07-29 | 2007-06-12 | Grandis, Inc. | Magnetic devices having a hard bias field and magnetic memory devices using the magnetic devices |
US7489541B2 (en) | 2005-08-23 | 2009-02-10 | Grandis, Inc. | Spin-transfer switching magnetic elements using ferrimagnets and magnetic memories using the magnetic elements |
US7224601B2 (en) | 2005-08-25 | 2007-05-29 | Grandis Inc. | Oscillating-field assisted spin torque switching of a magnetic tunnel junction memory element |
US7272034B1 (en) | 2005-08-31 | 2007-09-18 | Grandis, Inc. | Current driven switching of magnetic storage cells utilizing spin transfer and magnetic memories using such cells |
US7272035B1 (en) | 2005-08-31 | 2007-09-18 | Grandis, Inc. | Current driven switching of magnetic storage cells utilizing spin transfer and magnetic memories using such cells |
US20070054450A1 (en) | 2005-09-07 | 2007-03-08 | Magic Technologies, Inc. | Structure and fabrication of an MRAM cell |
US7532442B2 (en) | 2005-09-19 | 2009-05-12 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetoresistive (MR) elements having pinning layers formed from permanent magnetic material |
US7973349B2 (en) | 2005-09-20 | 2011-07-05 | Grandis Inc. | Magnetic device having multilayered free ferromagnetic layer |
US7807492B2 (en) | 2005-09-28 | 2010-10-05 | Northern Lights Semiconductor Corp. | Magnetoresistive random access memory with improved layout design and process thereof |
US7403418B2 (en) | 2005-09-30 | 2008-07-22 | Silicon Storage Technology, Inc. | Word line voltage boosting circuit and a memory array incorporating same |
US20070085068A1 (en) * | 2005-10-14 | 2007-04-19 | Dmytro Apalkov | Spin transfer based magnetic storage cells utilizing granular free layers and magnetic memories using such cells |
JP4444241B2 (ja) | 2005-10-19 | 2010-03-31 | 株式会社東芝 | 磁気抵抗効果素子、磁気ランダムアクセスメモリ、電子カード及び電子装置 |
US7286395B2 (en) | 2005-10-27 | 2007-10-23 | Grandis, Inc. | Current driven switched magnetic storage cells having improved read and write margins and magnetic memories using such cells |
US20070096229A1 (en) | 2005-10-28 | 2007-05-03 | Masatoshi Yoshikawa | Magnetoresistive element and magnetic memory device |
US7411815B2 (en) | 2005-11-14 | 2008-08-12 | Infineon Technologies Ag | Memory write circuit |
US7187577B1 (en) | 2005-11-23 | 2007-03-06 | Grandis, Inc. | Method and system for providing current balanced writing for memory cells and magnetic devices |
US7485503B2 (en) | 2005-11-30 | 2009-02-03 | Intel Corporation | Dielectric interface for group III-V semiconductor device |
US7880249B2 (en) | 2005-11-30 | 2011-02-01 | Magic Technologies, Inc. | Spacer structure in MRAM cell and method of its fabrication |
US20070132049A1 (en) | 2005-12-12 | 2007-06-14 | Stipe Barry C | Unipolar resistance random access memory (RRAM) device and vertically stacked architecture |
US7430135B2 (en) | 2005-12-23 | 2008-09-30 | Grandis Inc. | Current-switched spin-transfer magnetic devices with reduced spin-transfer switching current density |
US7466583B2 (en) | 2006-01-13 | 2008-12-16 | Magic Technologies, Inc. | MRAM with split read-write cell structures |
US20070187785A1 (en) * | 2006-02-16 | 2007-08-16 | Chien-Chung Hung | Magnetic memory cell and manufacturing method thereof |
US7515457B2 (en) | 2006-02-24 | 2009-04-07 | Grandis, Inc. | Current driven memory cells having enhanced current and enhanced current symmetry |
US8183652B2 (en) | 2007-02-12 | 2012-05-22 | Avalanche Technology, Inc. | Non-volatile magnetic memory with low switching current and high thermal stability |
US20070246787A1 (en) | 2006-03-29 | 2007-10-25 | Lien-Chang Wang | On-plug magnetic tunnel junction devices based on spin torque transfer switching |
US7826174B2 (en) | 2006-03-31 | 2010-11-02 | Ricoh Company, Ltd. | Information recording method and apparatus using plasmonic transmission along line of ferromagnetic nano-particles with reproducing method using fade-in memory |
US20070241392A1 (en) | 2006-04-14 | 2007-10-18 | Hsin-Chang Lin | Non-volatile flash memory structure and method for operating the same |
US7345912B2 (en) | 2006-06-01 | 2008-03-18 | Grandis, Inc. | Method and system for providing a magnetic memory structure utilizing spin transfer |
US20070297220A1 (en) | 2006-06-22 | 2007-12-27 | Masatoshi Yoshikawa | Magnetoresistive element and magnetic memory |
US7379327B2 (en) | 2006-06-26 | 2008-05-27 | Grandis, Inc. | Current driven switching of magnetic storage cells utilizing spin transfer and magnetic memories using such cells having enhanced read and write margins |
US7433225B2 (en) * | 2006-07-06 | 2008-10-07 | International Business Machines Corporation | Scalable magnetic random access memory device |
US7502249B1 (en) | 2006-07-17 | 2009-03-10 | Grandis, Inc. | Method and system for using a pulsed field to assist spin transfer induced switching of magnetic memory elements |
JP4385156B2 (ja) | 2006-07-27 | 2009-12-16 | 独立行政法人産業技術総合研究所 | Ccp−cpp型巨大磁気抵抗素子 |
JP5046194B2 (ja) | 2006-08-07 | 2012-10-10 | 日本電気株式会社 | ワード線駆動電位可変のmram |
US7851840B2 (en) | 2006-09-13 | 2010-12-14 | Grandis Inc. | Devices and circuits based on magnetic tunnel junctions utilizing a multilayer barrier |
US8477528B2 (en) | 2006-10-16 | 2013-07-02 | Nec Corporation | Magnetic memory cell and magnetic random access memory |
US7572645B2 (en) | 2006-11-15 | 2009-08-11 | Everspin Technologies, Inc. | Magnetic tunnel junction structure and method |
JP2008130112A (ja) * | 2006-11-16 | 2008-06-05 | Fujitsu Ltd | 磁気抵抗効果型再生磁気ヘッド及びその再生磁気ヘッドを用いた磁気記録装置 |
US7864569B2 (en) | 2006-12-01 | 2011-01-04 | Macronix International Co., Ltd. | Structure of magnetic random access memory using spin-torque transfer writing |
US7598579B2 (en) | 2007-01-30 | 2009-10-06 | Magic Technologies, Inc. | Magnetic tunnel junction (MTJ) to reduce spin transfer magnetization switching current |
US7480173B2 (en) | 2007-03-13 | 2009-01-20 | Magic Technologies, Inc. | Spin transfer MRAM device with novel magnetic free layer |
US8058697B2 (en) | 2007-03-26 | 2011-11-15 | Magic Technologies, Inc. | Spin transfer MRAM device with novel magnetic synthetic free layer |
US7738287B2 (en) | 2007-03-27 | 2010-06-15 | Grandis, Inc. | Method and system for providing field biased magnetic memory devices |
US7728622B2 (en) | 2007-03-29 | 2010-06-01 | Qualcomm Incorporated | Software programmable logic using spin transfer torque magnetoresistive random access memory |
US7486551B1 (en) | 2007-04-03 | 2009-02-03 | Grandis, Inc. | Method and system for providing domain wall assisted switching of magnetic elements and magnetic memories using such magnetic elements |
US7605437B2 (en) | 2007-04-18 | 2009-10-20 | Everspin Technologies, Inc. | Spin-transfer MRAM structure and methods |
US7782661B2 (en) | 2007-04-24 | 2010-08-24 | Magic Technologies, Inc. | Boosted gate voltage programming for spin-torque MRAM array |
US7919826B2 (en) | 2007-04-24 | 2011-04-05 | Kabushiki Kaisha Toshiba | Magnetoresistive element and manufacturing method thereof |
JP2008277542A (ja) | 2007-04-27 | 2008-11-13 | Toshiba Corp | 磁気ランダムアクセスメモリ及びその製造方法 |
US7539047B2 (en) | 2007-05-08 | 2009-05-26 | Honeywell International, Inc. | MRAM cell with multiple storage elements |
US7486552B2 (en) | 2007-05-21 | 2009-02-03 | Grandis, Inc. | Method and system for providing a spin transfer device with improved switching characteristics |
US7573736B2 (en) | 2007-05-22 | 2009-08-11 | Taiwan Semiconductor Manufacturing Company | Spin torque transfer MRAM device |
WO2008154519A1 (en) | 2007-06-12 | 2008-12-18 | Grandis, Inc. | Method and system for providing a magnetic element and magnetic memory being unidirectional writing enabled |
US7742328B2 (en) | 2007-06-15 | 2010-06-22 | Grandis, Inc. | Method and system for providing spin transfer tunneling magnetic memories utilizing non-planar transistors |
US7750421B2 (en) | 2007-07-23 | 2010-07-06 | Magic Technologies, Inc. | High performance MTJ element for STT-RAM and method for making the same |
US7764536B2 (en) | 2007-08-07 | 2010-07-27 | Grandis, Inc. | Method and system for providing a sense amplifier and drive circuit for spin transfer torque magnetic random access memory |
US7982275B2 (en) | 2007-08-22 | 2011-07-19 | Grandis Inc. | Magnetic element having low saturation magnetization |
US20090185410A1 (en) | 2008-01-22 | 2009-07-23 | Grandis, Inc. | Method and system for providing spin transfer tunneling magnetic memories utilizing unidirectional polarity selection devices |
KR101586271B1 (ko) * | 2008-04-03 | 2016-01-20 | 삼성전자주식회사 | 자기 메모리 소자 및 그 정보 쓰기 및 읽기 방법 |
US8233247B2 (en) | 2008-04-11 | 2012-07-31 | Hitachi Global Storage Technologies Netherlands B.V. | Scissoring-type current-perpendicular-to-the-plane giant magnetoresistance (CPP-GMR) sensors with damped free layer structures |
US20090302403A1 (en) | 2008-06-05 | 2009-12-10 | Nguyen Paul P | Spin torque transfer magnetic memory cell |
US7881095B2 (en) | 2008-08-08 | 2011-02-01 | Seagate Technology Llc | Asymmetric write current compensation using gate overdrive for resistive sense memory cells |
US7935435B2 (en) | 2008-08-08 | 2011-05-03 | Seagate Technology Llc | Magnetic memory cell construction |
US7881098B2 (en) | 2008-08-26 | 2011-02-01 | Seagate Technology Llc | Memory with separate read and write paths |
US7940551B2 (en) * | 2008-09-29 | 2011-05-10 | Seagate Technology, Llc | STRAM with electronically reflective insulative spacer |
US7826256B2 (en) * | 2008-09-29 | 2010-11-02 | Seagate Technology Llc | STRAM with compensation element |
US8169810B2 (en) | 2008-10-08 | 2012-05-01 | Seagate Technology Llc | Magnetic memory with asymmetric energy barrier |
US8039913B2 (en) * | 2008-10-09 | 2011-10-18 | Seagate Technology Llc | Magnetic stack with laminated layer |
US7829964B2 (en) * | 2008-10-31 | 2010-11-09 | Industrial Technology Research Institute | Magnetic memory element utilizing spin transfer switching |
US8536669B2 (en) | 2009-01-13 | 2013-09-17 | Qualcomm Incorporated | Magnetic element with storage layer materials |
US8063460B2 (en) * | 2009-12-18 | 2011-11-22 | Intel Corporation | Spin torque magnetic integrated circuits and devices therefor |
-
2008
- 2008-09-29 US US12/239,884 patent/US7985994B2/en not_active Expired - Fee Related
-
2009
- 2009-09-29 EP EP09793107A patent/EP2342716B1/en not_active Not-in-force
- 2009-09-29 WO PCT/US2009/058756 patent/WO2010037090A2/en active Application Filing
- 2009-09-29 JP JP2011529345A patent/JP5667982B2/ja not_active Expired - Fee Related
- 2009-09-29 CN CN200980143740.8A patent/CN102216995B/zh active Active
- 2009-09-29 KR KR1020117009873A patent/KR101308605B1/ko active IP Right Grant
-
2011
- 2011-05-25 US US13/115,265 patent/US8362534B2/en active Active
-
2013
- 2013-01-24 US US13/748,815 patent/US9041083B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4006A (en) * | 1845-04-22 | Improvement in self-adjusting platens for cotton and other presses | ||
JP2003229544A (ja) * | 2002-02-04 | 2003-08-15 | Mitsubishi Electric Corp | 磁気記憶装置 |
US6765819B1 (en) * | 2002-07-25 | 2004-07-20 | Hewlett-Packard Development Company, Lp. | Magnetic memory device having improved switching characteristics |
JP2006114868A (ja) * | 2004-09-17 | 2006-04-27 | Toshiba Corp | 磁気記録素子及びそれを用いた磁気記録装置 |
JP2007157840A (ja) * | 2005-12-01 | 2007-06-21 | Sony Corp | 記憶素子、メモリ |
WO2008100868A2 (en) * | 2007-02-12 | 2008-08-21 | Yadav Technology, Inc. | Non-uniform switching based non-volatile magnetic based memory |
JP2012519957A (ja) * | 2009-03-03 | 2012-08-30 | アバランチ テクノロジー, インコーポレイテッド | 多状態スピン注入磁気ランダムアクセスメモリ |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013513255A (ja) * | 2009-12-08 | 2013-04-18 | クアルコム,インコーポレイテッド | 磁気トンネル接合デバイス |
JP2014103420A (ja) * | 2009-12-08 | 2014-06-05 | Qualcomm Inc | 磁気トンネル接合デバイス |
US8969984B2 (en) | 2009-12-08 | 2015-03-03 | Qualcomm Incorporated | Magnetic tunnel junction device |
Also Published As
Publication number | Publication date |
---|---|
US7985994B2 (en) | 2011-07-26 |
US20110221016A1 (en) | 2011-09-15 |
KR20110079824A (ko) | 2011-07-08 |
WO2010037090A2 (en) | 2010-04-01 |
CN102216995B (zh) | 2014-04-16 |
EP2342716B1 (en) | 2012-06-20 |
EP2342716A2 (en) | 2011-07-13 |
US20130140659A1 (en) | 2013-06-06 |
US8362534B2 (en) | 2013-01-29 |
WO2010037090A3 (en) | 2010-05-27 |
US9041083B2 (en) | 2015-05-26 |
CN102216995A (zh) | 2011-10-12 |
JP5667982B2 (ja) | 2015-02-12 |
KR101308605B1 (ko) | 2013-09-17 |
US20100078742A1 (en) | 2010-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5667982B2 (ja) | 電子的反射性絶縁スペーサを有する磁束閉鎖stram | |
JP5711802B2 (ja) | スピン転移トルクメモリユニット | |
JP5425205B2 (ja) | 補償素子を有するstram | |
KR20140135566A (ko) | 자기저항요소 및 이를 포함하는 메모리소자 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130604 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130903 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130910 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20131003 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20131010 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131101 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140318 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20140617 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20140624 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20140717 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20140725 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140812 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20141118 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20141215 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5667982 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |