Static information storage and retrieval – Magnetic bubbles – Disposition of elements
Patent
1976-08-16
1978-06-20
Moffitt, James W.
Static information storage and retrieval
Magnetic bubbles
Disposition of elements
G11C 1908
Patent
active
040965813
ABSTRACT:
A magnetic bubble domain package suitable for single or multiple chips in which the coil assembly for producing the rotating magnetic field necessary for bubble movement and logical operations to be performed on these chips comprises a pair of coils wound on a magnetic body in orthogonal relationship with respect to each other which is located external to said chip or chips in order to reduce coil size and power requirements. The package employs an open bias field magnet assembly which comprises an open-ended tubular housing constructed of shielding material and having permanent magnets mounted therein with soft magnetic plates disposed on the permanent magnets. An alternate embodiment employs only a single permanent magnet and a single soft magnetic plate secured within the tubular housing, and uses the magnetic body of the coil assembly as part of the bias field assembly. The chip substructure which is served by this bias field assembly employs a metal plate as an image current producer to increase the uniformity of the drive field. An interconnect member constructed of a thin film of insulating material with electrical conductors disposed thereon is used to provide the interface between the external signal leads of the package and the magnetic bubble domain chip.
REFERENCES:
patent: 4027300 (1977-05-01), Braun
IEEE Transactions on Magnetics, vol. Mag-11, No. 5, 1975, pp. 1151-1153.
Carlo James Thomas
Stephenson, Jr. Alvis Doyle
Comfort James T.
Grossman Rene E.
Hiller William E.
Moffitt James W.
Texas Instruments Incorporated
LandOfFree
External drive coil magnetic bubble package does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with External drive coil magnetic bubble package, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External drive coil magnetic bubble package will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1138761