Static information storage and retrieval – Systems using particular element – Magnetic thin film
Patent
1989-12-22
1992-06-30
Popek, Joseph A.
Static information storage and retrieval
Systems using particular element
Magnetic thin film
365173, 360123, 360126, 336 83, 336200, G11C 1114, H01F 1706
Patent
active
051269716
ABSTRACT:
A thin film magnetic core array has a large number of individual thin film core memory elements arranged on a substrate with X, Y, Z and SENSE conductor leads reeving through the core elements between contact pads arranged about the periphery of the array. Each thin film magnetic memory element includes a bottom pole, a top pole forming a closed magnetic path with the top pole, the structure surrounding the leads passing through the core, and insulation material for electrically insulating the leads from each other and from the pole pieces. The SENSE lead from the array is coupled to a miniature thin film transformer which amplifies the signals read from the individual core elements. The transformer has a bottom pole, a top pole forming a closed magnetic path with the bottom pole, including a central leg extending between the top and bottom poles, and a pair of electrically conductive coils mutually spaced in the region between the top and bottom poles.
REFERENCES:
patent: 3375503 (1968-03-01), Bertelsen
patent: 4689592 (1987-08-01), Walker
patent: 4887236 (1989-12-01), Schloemann
Lin Fong-Jei
Zhu Shengbo
Magnex Corporation
Popek Joseph A.
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