DocumentCode :
1079748
Title :
Magnetic bubble device scaling and density limits
Author :
Kryder, Mark H.
Author_Institution :
Carnegie-Mellon University, Pittsburgh, PA
Volume :
15
Issue :
3
fYear :
1979
fDate :
5/1/1979 12:00:00 AM
Firstpage :
1009
Lastpage :
1016
Abstract :
Scaling of magnetic bubble devices to smaller bubble sizes and higher density is considered. Drive field requirements, materials requirements, fabrication requirements, current requirements, and detector signal-to-noise ratio are all calculated as a function of bubble size and related to practical limits imposed by bubble materials, fabrication techniques, and electromigration limits. It is concluded that "conventional" bubble devices using Permalloy bars can be made practical with 1-μm bubble domains (storage density \\sim6 \\times 10^{6} bits/cm2). Although it may be possible to extend these Permalloy bar devices to even smaller bubbles, it seems more likely that other bubble devices such as contiguous disk devices or bubble lattice devices will in fact be used for densities greater than 6 × 106bits/cm2.
Keywords :
Magnetic bubble devices; Bars; Electromigration; Fabrication; Frequency; Lattices; Magnetic devices; Magnetic domains; Magnetic fields; Magnetic materials; Magnetization;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1979.1070320
Filename :
1070320
Link To Document :
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