Static information storage and retrieval – Magnetic bubbles – Generators
Patent
1989-03-06
1989-11-14
Gossage, Glenn A.
Static information storage and retrieval
Magnetic bubbles
Generators
365 36, 365 37, G11C 1908, G11C 1142
Patent
active
048811980
ABSTRACT:
A duplicator in a magnetic bubble memory with non-implanted patterns, a process for realizing the duplicator and a serial - parallel magnetic bubble memory having at least one of the aforementioned duplicators are disclosed. In a magnetic bubble memory having a first group of aligned non-implanted patterns and a second group of aligned non-implanted patterns, the duplicator according to the invention is characterized in that it comprises an extension conductor and a breaking conductor, the extension conductor linking the first and second groups of patterns, the breaking conductor being positioned transversely with respect to the extension conductor, the geometry of the end pattern of the first group of patterns being such that the duplication position is a stable position and the geometry of the patterns of the second group adjacent the axis of the first group being such that the reception position of the duplicated bubble is a stable position.
REFERENCES:
patent: 4253159 (1981-02-01), Nelson
patent: 4415988 (1983-11-01), Komenou et al.
patent: 4493083 (1985-01-01), Kinoshita
Urai et al, "A Major Line Bubble Replicator for Ion-Implanted Bubble Devices", Microelectronics Research Lab, NEC Ltd., Nov. 1982, p. 79.
RCA Technical Notes, No. 885, "Bubble Domain Constructions", by Kurlansik and Clover.
Komenou et al, "Design of a Block Replicate Gate for Ion-Implanted Bubble Devices", IEEE Trans. on Magnetics, vol. 18, No. 6, pp. 1352-1354.
Fedeli Jean-Marc
Magnin Joel
Commissariat a l''Energie Atomique
Gossage Glenn A.
Meller Michael N.
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