FR2362469A1 - Dispositif a memoire a files de bulles magnetiques - Google Patents

Dispositif a memoire a files de bulles magnetiques

Info

Publication number
FR2362469A1
FR2362469A1 FR7725605A FR7725605A FR2362469A1 FR 2362469 A1 FR2362469 A1 FR 2362469A1 FR 7725605 A FR7725605 A FR 7725605A FR 7725605 A FR7725605 A FR 7725605A FR 2362469 A1 FR2362469 A1 FR 2362469A1
Authority
FR
France
Prior art keywords
memory device
layer
magnetic
magnetic bubble
wire 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
Application number
FR7725605A
Other languages
English (en)
Other versions
FR2362469B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Publication of FR2362469A1 publication Critical patent/FR2362469A1/fr
Application granted granted Critical
Publication of FR2362469B1 publication Critical patent/FR2362469B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G11C19/0833—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 magnetic domain interaction
    • 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
    • G11C19/0875—Organisation of a plurality of magnetic shift registers

Landscapes

  • Thin Magnetic Films (AREA)
  • Mram Or Spin Memory Techniques (AREA)

Abstract

L'invention concerne les structures à files de domaines magnétiques, formant un réseau. Selon l'invention, deux couches adjacentes 50 et 52 de matière magnétique capable d'entretenir des domaines magnétiques sont séparées par une mince couche intermédiaire 51 qui peut être supprimée, et sont sous la commande de deux couches de polarisation 23 et 53. La couche 50 comprend des bulles de transport formant un ensemble hexagonal tassé, et la couche 52 contient des bulles de codage contenant l'information sous forme de la présence ou de l'absence d'une bulle de codage. Application à la réalisation de mémoires à domaines magnétiques.
FR7725605A 1976-08-20 1977-08-22 Dispositif a memoire a files de bulles magnetiques Granted FR2362469A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/715,967 US4059828A (en) 1976-08-20 1976-08-20 Bubble lattice file structure

Publications (2)

Publication Number Publication Date
FR2362469A1 true FR2362469A1 (fr) 1978-03-17
FR2362469B1 FR2362469B1 (fr) 1980-07-11

Family

ID=24876186

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725605A Granted FR2362469A1 (fr) 1976-08-20 1977-08-22 Dispositif a memoire a files de bulles magnetiques

Country Status (7)

Country Link
US (1) US4059828A (fr)
JP (1) JPS5326537A (fr)
CA (1) CA1104252A (fr)
DE (1) DE2736156C3 (fr)
FR (1) FR2362469A1 (fr)
GB (1) GB1546310A (fr)
NL (1) NL7708636A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198692A (en) * 1978-09-22 1980-04-15 Rockwell International Corporation Self-biased structure for magnetic bubble domain devices
DE3207159A1 (de) * 1982-02-27 1983-09-08 Vacuumschmelze Gmbh, 6450 Hanau Verfahren zur herstellung eines stabilisierten supraleiters mit einer diffusionshemmenden schicht
KR960003420B1 (ko) * 1986-07-08 1996-03-13 캐논 가부시끼가이샤 2층이상의 자성막을 가지고 중복기록이 가능한 광자기 기록매체 및 그의 매체를 사용한 기록방법
US6028824A (en) * 1986-07-08 2000-02-22 Canon Kabushiki Kaisha Magnetooptical recording medium allowing overwriting with two or more magnetic layers
EP0258978B1 (fr) * 1986-07-08 1998-10-07 Canon Kabushiki Kaisha Milieu d'enregistrement magnéto-optique permettant la surécriture avec deux ou plus de deux couches magnétiques et méthode d'enregistrement l'utilisant
JPH0395745A (ja) * 1989-09-06 1991-04-22 Canon Inc 光磁気記録方法及び記録装置
MXPA05003435A (es) * 2002-10-03 2005-07-05 Koninkl Philips Electronics Nv Dispositivo de memoria magnetica de solo-lectura (mrom).

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996571A (en) * 1974-03-08 1976-12-07 International Business Machines Corporation Double layer bubble domain lattice system
US3968481A (en) * 1974-07-25 1976-07-06 International Business Machines (Ibm) Method of, and apparatus for, establishing self-biased single wall domains

Also Published As

Publication number Publication date
US4059828A (en) 1977-11-22
FR2362469B1 (fr) 1980-07-11
JPS5731235B2 (fr) 1982-07-03
GB1546310A (en) 1979-05-23
CA1104252A (fr) 1981-06-30
NL7708636A (nl) 1978-02-22
DE2736156B2 (fr) 1979-05-23
JPS5326537A (en) 1978-03-11
DE2736156C3 (de) 1980-01-31
DE2736156A1 (de) 1978-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse