Magnetic bubble memory with main and auxiliary printed wiring fi

Details Magnetic bubble memory with main and auxiliary printed wiring fi Magnetic bubble memory with main and auxiliary printed wiring fi

1987-04-10

1989-09-19

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Disposition of elements

G11C 506, G11C 1908

Patent

active

048687863

ABSTRACT:
A magnetic bubble memory device comprising a chip assembly having a plurality of bubble memory chips superposed one above the other on a main printed wiring film. The lowermost chip is electrically connected to wiring patterns formed on the main printed wiring film. Each of the upper chip or chips is mounted on an auxiliary printed wiring film and electrically connected to the wiring patterns of the main printed wiring film through the auxiliary printed wiring film. The chip assembly is assembled with coils for generating a revolutional magnetic field disposed in a magnetic shield case in such a manner that the bubble memory chips are disposed inside of the coils and both ends of the main printed wiring film are disposed outside of the coils for outer connection.

REFERENCES:
patent: 4027295 (1977-05-01), Maegawa et al.
patent: 4101970 (1978-07-01), Saito et al.
patent: 4160274 (1979-07-01), Stephenson, Jr.
Nikkei Electronics 1985.12.2 P203-218, K. Hirota & Y. Akiba.

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