GB2403080A - Data storage device - Google Patents
Data storage device Download PDFInfo
- Publication number
- GB2403080A GB2403080A GB0422377A GB0422377A GB2403080A GB 2403080 A GB2403080 A GB 2403080A GB 0422377 A GB0422377 A GB 0422377A GB 0422377 A GB0422377 A GB 0422377A GB 2403080 A GB2403080 A GB 2403080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- storage device
- data storage
- domain wall
- propagating
- track
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/02—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using elements whose operation depends upon chemical change
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/18—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using galvano-magnetic devices, e.g. Hall-effect devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N10/00—Quantum computing, i.e. information processing based on quantum-mechanical phenomena
-
- 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
-
- 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
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
- G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
- G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
- G11C19/0808—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
- G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
- G11C19/0808—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation
- G11C19/0816—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation using a rotating or alternating coplanar magnetic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/70—Resistive array aspects
- G11C2213/81—Array wherein the array conductors, e.g. word lines, bit lines, are made of nanowires
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Artificial Intelligence (AREA)
- Computational Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Data Mining & Analysis (AREA)
- Evolutionary Computation (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Software Systems (AREA)
- Mram Or Spin Memory Techniques (AREA)
Abstract
A data storage device for storing digital information in a readable form is described made up of one or more memory elements, each memory element comprising a planar magnetic conduit capable of sustaining and propagating a magnetic domain wall formed into a continuous propagation track. Each continuous track is provided with at least one and preferably a large number of inversion nodes whereat the magnetisation direction of a domain wall propagating along the conduit under action of a suitable applied field, such as a rotating magnetic field, is changed.
Description
GB 2403080 A continuation (72) Inventor(s): Russell Paul Cowburn (74)
Agent and/or Address for Service: Novagraaf Patents Limited The Crescent, 54 Blossom Street, YORK, YO24 TAP, United Kingdom
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0028092.5A GB0028092D0 (en) | 2000-11-17 | 2000-11-17 | Magnetic logic elements |
GB0207160A GB0207160D0 (en) | 2002-03-27 | 2002-03-27 | Data storage device |
PCT/GB2003/001266 WO2003083874A1 (en) | 2002-03-27 | 2003-03-25 | Data storage device |
Publications (4)
Publication Number | Publication Date |
---|---|
GB0422377D0 GB0422377D0 (en) | 2004-11-10 |
GB2403080A true GB2403080A (en) | 2004-12-22 |
GB2403080A8 GB2403080A8 (en) | 2005-03-01 |
GB2403080B GB2403080B (en) | 2005-07-13 |
Family
ID=34680418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0422377A Expired - Fee Related GB2403080B (en) | 2000-11-17 | 2003-03-25 | Data storage device |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR100912436B1 (en) |
GB (1) | GB2403080B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2430318A (en) * | 2005-08-03 | 2007-03-21 | Ingenia Technology Ltd | Multiple layer magnetic logic memory device |
GB2436490A (en) * | 2005-08-03 | 2007-09-26 | Ingenia Technology Ltd | Multiple layer magnetic logic memory device |
US7554835B2 (en) | 2005-08-03 | 2009-06-30 | Ingenia Technology Limited | Memory access |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100813261B1 (en) * | 2006-07-13 | 2008-03-13 | 삼성전자주식회사 | Semiconductor device using magnetic domain wall moving |
KR100790891B1 (en) * | 2006-09-29 | 2008-01-02 | 삼성전자주식회사 | Magnetic recording device |
KR100873637B1 (en) | 2006-11-28 | 2008-12-12 | 삼성전자주식회사 | Apparatus of domain wall motion and Data storage device using the same |
KR20090127705A (en) | 2008-06-09 | 2009-12-14 | 삼성전자주식회사 | Magnetic racetrack memory device including write-back loop |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3774179A (en) * | 1971-07-22 | 1973-11-20 | J Wiegand | Ferromagnetic storage medium |
US3811120A (en) * | 1973-04-05 | 1974-05-14 | Bell Telephone Labor Inc | Magnetic domain propagation arrangement having channels defined by straight line boundaries |
WO2001031789A2 (en) * | 1999-10-25 | 2001-05-03 | Cambridge University Technical Services Limited | Magnetic logic device having magnetic quantum dots |
WO2002013208A1 (en) * | 2000-08-08 | 2002-02-14 | Cambridge University Technical Services Limited | Magnetic element with switchable domain structure |
-
2003
- 2003-03-25 KR KR1020047015041A patent/KR100912436B1/en not_active IP Right Cessation
- 2003-03-25 GB GB0422377A patent/GB2403080B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3774179A (en) * | 1971-07-22 | 1973-11-20 | J Wiegand | Ferromagnetic storage medium |
US3811120A (en) * | 1973-04-05 | 1974-05-14 | Bell Telephone Labor Inc | Magnetic domain propagation arrangement having channels defined by straight line boundaries |
WO2001031789A2 (en) * | 1999-10-25 | 2001-05-03 | Cambridge University Technical Services Limited | Magnetic logic device having magnetic quantum dots |
WO2002013208A1 (en) * | 2000-08-08 | 2002-02-14 | Cambridge University Technical Services Limited | Magnetic element with switchable domain structure |
Non-Patent Citations (2)
Title |
---|
Ono T et al; "Magnetization reversal and electric transport in ferromagnetic nanowires" Materials Science and Engineering; Vol 84, no 1-2, pages 126-132 * |
Taniyama T et al; "Control of domain structures and magnetotransport properties in patterned ferromagnetic wires" Applied Physics Letters, AIP, Vol 76, no 5, pages 613-615 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2430318A (en) * | 2005-08-03 | 2007-03-21 | Ingenia Technology Ltd | Multiple layer magnetic logic memory device |
GB2430318B (en) * | 2005-08-03 | 2007-08-22 | Ingenia Technology Ltd | Memory access |
GB2436490A (en) * | 2005-08-03 | 2007-09-26 | Ingenia Technology Ltd | Multiple layer magnetic logic memory device |
GB2436490B (en) * | 2005-08-03 | 2007-11-14 | Ingenia Technology Ltd | Memory access |
US7554835B2 (en) | 2005-08-03 | 2009-06-30 | Ingenia Technology Limited | Memory access |
Also Published As
Publication number | Publication date |
---|---|
GB2403080B (en) | 2005-07-13 |
GB2403080A8 (en) | 2005-03-01 |
GB0422377D0 (en) | 2004-11-10 |
KR100912436B1 (en) | 2009-08-14 |
KR20040108684A (en) | 2004-12-24 |
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Legal Events
Date | Code | Title | Description |
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REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1070982 Country of ref document: HK |
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REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1070982 Country of ref document: HK |
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732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20100909 AND 20100915 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20110325 |