Browse Prior Art Database

Magnetic Memory Package

IP.com Disclosure Number: IPCOM000098544D
Original Publication Date: 1959-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Elder, DE: AUTHOR

Abstract

The drawings illustrate a core memory packaging technique which permits a complete three-dimensional matrix to be wired in a single plane, and then folded in a suitable frame to form a multiplane structure. The upper drawing shows the wiring pattern of a 4 x 4 x 4 array. The four planes are laid out side by side and the X lines are threaded in a continuous manner through the cores of each plane. The Y lines are threaded in the zig zag pattern at right angles to the X lines. The odd numbered planes are thus identical and the even numbered planes are their mirror images. Separate sense and inhibit windings are provided for each plane, being reversed in adjacent planes to follow the mirror image pattern.

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Magnetic Memory Package

The drawings illustrate a core memory packaging technique which permits a complete three-dimensional matrix to be wired in a single plane, and then folded in a suitable frame to form a multiplane structure. The upper drawing shows the wiring pattern of a 4 x 4 x 4 array. The four planes are laid out side by side and the X lines are threaded in a continuous manner through the cores of each plane. The Y lines are threaded in the zig zag pattern at right angles to the X lines. The odd numbered planes are thus identical and the even numbered planes are their mirror images. Separate sense and inhibit windings are provided for each plane, being reversed in adjacent planes to follow the mirror image pattern.

After the wiring has been completed, the array is folded on a suitable three dimensional frame along the fold lines A, B, and C, so that the four planes are in vertical alignment, as shown in the lower drawing. If an even number of planes is provided, the two ends of each X line emerge from the same end of the frame in vertical alignment. Similarly, the two ends of each Y line and the sense and inhibit terminals emerge in vertical alignment making a compact and orderly three-dimensional package.

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