IT1070008B - Struttura perfezionata per la propagazione di domini a bolle - Google Patents

Struttura perfezionata per la propagazione di domini a bolle

Info

Publication number
IT1070008B
IT1070008B IT30664/76A IT3066476A IT1070008B IT 1070008 B IT1070008 B IT 1070008B IT 30664/76 A IT30664/76 A IT 30664/76A IT 3066476 A IT3066476 A IT 3066476A IT 1070008 B IT1070008 B IT 1070008B
Authority
IT
Italy
Prior art keywords
propagation
improved structure
bubble domains
domains
bubble
Prior art date
Application number
IT30664/76A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1070008B publication Critical patent/IT1070008B/it

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
    • G11C19/0816—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
    • H01F10/20—Ferrites
    • H01F10/24—Garnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
IT30664/76A 1975-12-31 1976-12-21 Struttura perfezionata per la propagazione di domini a bolle IT1070008B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/645,737 US4070658A (en) 1975-12-31 1975-12-31 Ion implanted bubble propagation structure

Publications (1)

Publication Number Publication Date
IT1070008B true IT1070008B (it) 1985-03-25

Family

ID=24590268

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30664/76A IT1070008B (it) 1975-12-31 1976-12-21 Struttura perfezionata per la propagazione di domini a bolle

Country Status (8)

Country Link
US (1) US4070658A (it)
JP (1) JPS5285399A (it)
CA (1) CA1068830A (it)
DE (1) DE2655572A1 (it)
FR (1) FR2337399A1 (it)
GB (1) GB1555686A (it)
IT (1) IT1070008B (it)
NL (1) NL7613123A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5393807A (en) * 1977-01-28 1978-08-17 Hitachi Ltd Guide drum for magnetic tape
US4128895A (en) * 1977-05-31 1978-12-05 International Business Machines Corporation Magnetic wall assisted bubble domain nucleator
US4174540A (en) * 1977-06-30 1979-11-13 International Business Machines Corporation Bubble domain transfer switches
US4264985A (en) * 1978-05-08 1981-04-28 Rockwell International Corporation Continuous propagation structures
US4308592A (en) * 1979-06-29 1981-12-29 International Business Machines Corporation Patterned kill of magnetoresistive layer in bubble domain chip
US4357683A (en) * 1979-10-29 1982-11-02 Bell Telephone Laboratories, Incorporated Magnetic bubble memory with ion-implanted layer
JPS5687286A (en) * 1979-12-17 1981-07-15 Fujitsu Ltd Magnetic bubble element
US4330848A (en) * 1980-03-10 1982-05-18 International Business Machines Corporation Charged wall amorphous magnetic layers
JPS5869498A (ja) * 1981-10-19 1983-04-25 Yaskawa Electric Mfg Co Ltd 巻線形誘導電動機の制御方法および装置
JPS5896705A (ja) * 1981-12-04 1983-06-08 Hitachi Ltd 磁気バブルメモリ素子
FR2529369A1 (fr) * 1982-06-29 1983-12-30 Commissariat Energie Atomique Memoire a bulles magnetiques a motifs non implantes, son utilisation pour la duplication de bulles et son application a la duplication par element binaire et par bloc d'elements binaires
JPS59172190A (ja) * 1983-03-22 1984-09-28 Hitachi Ltd 磁気バブルメモリチツプ
KR940004986B1 (ko) * 1984-08-27 1994-06-09 가부시기가이샤 히다찌세이사꾸쇼 자성막의 제조방법 및 그것을 사용한 자기헤드

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828329A (en) * 1972-07-24 1974-08-06 Bell Telephone Labor Inc Single wall domain propagation arrangement
US3996572A (en) * 1973-12-27 1976-12-07 International Business Machines Corporation Very high density gapless propagation structure for bubble domains
US3967002A (en) * 1974-12-31 1976-06-29 International Business Machines Corporation Method for making high density magnetic bubble domain system
US3996573A (en) * 1975-04-21 1976-12-07 Texas Instruments Incorporated Bubble propagation circuits and formation thereof

Also Published As

Publication number Publication date
NL7613123A (nl) 1977-07-04
FR2337399B1 (it) 1980-10-24
GB1555686A (en) 1979-11-14
JPS5532209B2 (it) 1980-08-23
CA1068830A (en) 1979-12-25
JPS5285399A (en) 1977-07-15
US4070658A (en) 1978-01-24
FR2337399A1 (fr) 1977-07-29
DE2655572A1 (de) 1977-07-14

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