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 therebyInfo
- 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
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)
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)
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)
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 |
US4088490A (en) * | 1976-06-14 | 1978-05-09 | International Business Machines Corporation | Single level masking process with two positive photoresist layers |
US4178635A (en) * | 1976-06-14 | 1979-12-11 | Hewlett-Packard Company | Planar and near planar magnetic bubble circuits |
US4092442A (en) * | 1976-12-30 | 1978-05-30 | International Business Machines Corporation | Method of depositing thin films utilizing a polyimide mask |
-
1979
- 1979-11-28 DE DE19792947952 patent/DE2947952C2/en not_active Expired
- 1979-12-03 GB GB7941624A patent/GB2046040B/en not_active Expired
- 1979-12-20 CA CA000342357A patent/CA1135852A/en not_active Expired
-
1980
- 1980-01-17 JP JP314380A patent/JPS598908B2/en not_active Expired
- 1980-01-29 AU AU55011/80A patent/AU532007B2/en not_active Ceased
- 1980-03-25 FR FR8006647A patent/FR2452762A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2452762A1 (en) | 1980-10-24 |
FR2452762B1 (en) | 1985-05-10 |
AU532007B2 (en) | 1983-09-15 |
GB2046040A (en) | 1980-11-05 |
JPS55132588A (en) | 1980-10-15 |
AU5501180A (en) | 1980-10-02 |
DE2947952C2 (en) | 1985-01-10 |
JPS598908B2 (en) | 1984-02-28 |
CA1135852A (en) | 1982-11-16 |
DE2947952A1 (en) | 1980-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |