Browse Prior Art Database

Rounded Ferrite Core

IP.com Disclosure Number: IPCOM000096490D
Original Publication Date: 1963-Jun-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 23K

Publishing Venue

IBM

Related People

Hiza, P: AUTHOR [+2]

Abstract

The present geometry of ferrite magnetic cores as in A, is that of a solid ring having a rectangular cross-section. Conducting wires pass through the core aperture at a 45 degrees angle from the axis of the core when utilized in a memory array. The sharp edge of the aperture innerface is in contact with the conducting wires thus permitting an abrasive action resulting in core breakage or cracking.

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Rounded Ferrite Core

The present geometry of ferrite magnetic cores as in A, is that of a solid ring having a rectangular cross-section. Conducting wires pass through the core aperture at a 45 degrees angle from the axis of the core when utilized in a memory array. The sharp edge of the aperture innerface is in contact with the conducting wires thus permitting an abrasive action resulting in core breakage or cracking.

To reduce the deleterious effect of the present core geometry, ferrite magnetic cores are made with a curved aperture innerface as in B. With these cores, abrasion between the wires and cores is decreased resulting in improved reliability and over-all performance. Furthermore, faster core switching is achieved since the air gap is reduced and more magnetic material is in intimate contact with the conducting wires.

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