Browse Prior Art Database

Core Plane Frame

IP.com Disclosure Number: IPCOM000091709D
Original Publication Date: 1968-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Snyder, R: AUTHOR

Abstract

Ferrite core memory arrays commonly include a stack or other arrangement of memory planes. Each is comprised of a frame to which an X-Y grid of wires, carrying the cores, is attached. Each end of each wire is welded or soldered to a terminal pad carried by the frame. A high-precision frame structure is provided by utilizing frame member 8 molded from thermoplastic or thermosetting material. Member 8 is formed by the mold with a first row of apertures 10, 12, 14, 16, 18, etc., on a first array of centers, and a second row 20, 22, 24, 26, 28, 30, etc., on a second array of centers offset from the first array. Each aperture has a pair of leg hole portions 32 and 34 joined at the top by trough portion 36, so as to form an inverted U-shaped channel to receive a staple element 38, 40, and 42.

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Core Plane Frame

Ferrite core memory arrays commonly include a stack or other arrangement of memory planes. Each is comprised of a frame to which an X-Y grid of wires, carrying the cores, is attached. Each end of each wire is welded or soldered to a terminal pad carried by the frame. A high-precision frame structure is provided by utilizing frame member 8 molded from thermoplastic or thermosetting material. Member 8 is formed by the mold with a first row of apertures 10, 12, 14, 16, 18, etc., on a first array of centers, and a second row 20, 22, 24, 26, 28, 30, etc., on a second array of centers offset from the first array. Each aperture has a pair of leg hole portions 32 and 34 joined at the top by trough portion 36, so as to form an inverted U-shaped channel to receive a staple element 38, 40, and 42.

The underside of the frame is molded with slots 44 of a first depth intercepting the leg holes of apertures 10, etc., and shallower slots 46 intercepting the leg holes of the second row apertures 20, etc. As or after the staples are inserted in the frame, their legs are bent outwardly in the slots for anchorage. Staples 38 and 40 are shown in their final positions, with their respective right-hand legs 48 and 50 extending beyond the edge of the frame to form exterior connection elements. Staple 42 is shown partly inserted, prior to the final seating and spreading operation. Finally, the staple elements can be cemented or heat-sealed in place to make certain that t...