CA1104253A - Bubble domain storage using improved transfer switch - Google Patents
Bubble domain storage using improved transfer switchInfo
- Publication number
- CA1104253A CA1104253A CA283,189A CA283189A CA1104253A CA 1104253 A CA1104253 A CA 1104253A CA 283189 A CA283189 A CA 283189A CA 1104253 A CA1104253 A CA 1104253A
- Authority
- CA
- Canada
- Prior art keywords
- along
- magnetic
- bubble
- propagation
- stem
- 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
- 238000012546 transfer Methods 0.000 title claims abstract description 123
- 238000003860 storage Methods 0.000 title abstract description 33
- 230000005291 magnetic effect Effects 0.000 claims abstract description 132
- 239000004020 conductor Substances 0.000 claims abstract description 101
- 239000000463 material Substances 0.000 claims description 16
- 239000000696 magnetic material Substances 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 9
- 239000007779 soft material Substances 0.000 claims description 5
- 230000001902 propagating effect Effects 0.000 claims 3
- 230000003252 repetitive effect Effects 0.000 claims 1
- 230000000873 masking effect Effects 0.000 abstract description 12
- 230000008520 organization Effects 0.000 abstract description 3
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 229910000889 permalloy Inorganic materials 0.000 description 26
- 238000000034 method Methods 0.000 description 15
- 238000013461 design Methods 0.000 description 14
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 13
- 230000007423 decrease Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005272 metallurgy Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000004335 scaling law Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000000992 sputter etching Methods 0.000 description 2
- 101100421674 Drosophila melanogaster slou gene Proteins 0.000 description 1
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 238000001015 X-ray lithography Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- -1 e.g. Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012615 high-resolution technique Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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
- G11C19/0875—Organisation of a plurality of magnetic shift registers
- G11C19/0883—Means for switching magnetic domains from one path into another path, i.e. transfer switches, swap gates or decoders
Landscapes
- Mram Or Spin Memory Techniques (AREA)
- Thin Magnetic Films (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70935876A | 1976-07-28 | 1976-07-28 | |
| US709,358 | 1976-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1104253A true CA1104253A (en) | 1981-06-30 |
Family
ID=24849536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA283,189A Expired CA1104253A (en) | 1976-07-28 | 1977-07-20 | Bubble domain storage using improved transfer switch |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5315717A (Direct) |
| CA (1) | CA1104253A (Direct) |
| FR (1) | FR2360152A1 (Direct) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4156936A (en) * | 1977-05-31 | 1979-05-29 | International Business Machines Corporation | Apparatus and method for improved operation of bubble devices |
| US4175289A (en) * | 1978-06-05 | 1979-11-20 | International Business Machines Corporation | Serrated Y-bar magnetic bubble switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3676870A (en) * | 1971-05-13 | 1972-07-11 | Bell Telephone Labor Inc | Single wall domain transfer circuit |
| US3713116A (en) * | 1971-11-09 | 1973-01-23 | Bell Telephone Labor Inc | Single-wall domain arrangement |
| US3876995A (en) * | 1973-08-08 | 1975-04-08 | Hewlett Packard Co | Magnetic bubble switches |
| JPS5734591B2 (Direct) * | 1974-05-24 | 1982-07-23 |
-
1977
- 1977-06-09 FR FR7718263A patent/FR2360152A1/fr active Granted
- 1977-06-27 JP JP7565477A patent/JPS5315717A/ja active Granted
- 1977-07-20 CA CA283,189A patent/CA1104253A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5315717A (en) | 1978-02-14 |
| JPS5712233B2 (Direct) | 1982-03-09 |
| FR2360152A1 (fr) | 1978-02-24 |
| FR2360152B1 (Direct) | 1980-04-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |