GB2046040B - Method of forming a bubble memory chip and a bubble memory chip made thereby - Google Patents

Method of forming a bubble memory chip and a bubble memory chip made thereby

Info

Publication number
GB2046040B
GB2046040B GB7941624A GB7941624A GB2046040B GB 2046040 B GB2046040 B GB 2046040B GB 7941624 A GB7941624 A GB 7941624A GB 7941624 A GB7941624 A GB 7941624A GB 2046040 B GB2046040 B GB 2046040B
Authority
GB
United Kingdom
Prior art keywords
memory chip
bubble memory
forming
bubble
chip made
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.)
Expired
Application number
GB7941624A
Other versions
GB2046040A (en
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.)
Control Data Corp
Original Assignee
Control Data 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 Control Data Corp filed Critical Control Data Corp
Publication of GB2046040A publication Critical patent/GB2046040A/en
Application granted granted Critical
Publication of GB2046040B publication Critical patent/GB2046040B/en
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/32—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film
    • H01F41/34—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film in patterns, e.g. by lithography

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Thin Magnetic Films (AREA)
  • Semiconductor Memories (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
GB7941624A 1979-03-27 1979-12-03 Method of forming a bubble memory chip and a bubble memory chip made thereby Expired GB2046040B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2399579A 1979-03-27 1979-03-27

Publications (2)

Publication Number Publication Date
GB2046040A GB2046040A (en) 1980-11-05
GB2046040B true GB2046040B (en) 1983-03-16

Family

ID=21818297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7941624A Expired GB2046040B (en) 1979-03-27 1979-12-03 Method of forming a bubble memory chip and a bubble memory chip made thereby

Country Status (6)

Country Link
JP (1) JPS598908B2 (en)
AU (1) AU532007B2 (en)
CA (1) CA1135852A (en)
DE (1) DE2947952C2 (en)
FR (1) FR2452762A1 (en)
GB (1) GB2046040B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539556B1 (en) * 1983-01-13 1986-03-28 Commissariat Energie Atomique METHOD FOR MANUFACTURING CONDUCTORS FOR INTEGRATED CIRCUITS, IN PLANAR TECHNOLOGY

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985597A (en) * 1975-05-01 1976-10-12 International Business Machines Corporation Process for forming passivated metal interconnection system with a planar surface
US4178635A (en) * 1976-06-14 1979-12-11 Hewlett-Packard Company Planar and near planar magnetic bubble circuits
US4088490A (en) * 1976-06-14 1978-05-09 International Business Machines Corporation Single level masking process with two positive photoresist layers
US4092442A (en) * 1976-12-30 1978-05-30 International Business Machines Corporation Method of depositing thin films utilizing a polyimide mask

Also Published As

Publication number Publication date
JPS598908B2 (en) 1984-02-28
FR2452762B1 (en) 1985-05-10
AU5501180A (en) 1980-10-02
GB2046040A (en) 1980-11-05
AU532007B2 (en) 1983-09-15
DE2947952A1 (en) 1980-10-09
JPS55132588A (en) 1980-10-15
CA1135852A (en) 1982-11-16
DE2947952C2 (en) 1985-01-10
FR2452762A1 (en) 1980-10-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee