Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Magnetic Memory

IP.com Disclosure Number: IPCOM000093968D
Original Publication Date: 1966-Apr-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Tiller, WE: AUTHOR

Abstract

The magnetic memory includes ceramic substrates 10 each having a plurality of ferrite torroids 12. These are formed in apertures in the substrate. Reading and writing in the memory is controlled by conductors 14 which are formed on substrates 10 and pass through the ferrite torroids in one coordinate direction and conductors 16 which are passed through torroids in a second coordinate direction. The memory is fabricated by first providing a ceramic substrate 10 with apertures. While the substrate is in an unfired state, the inner surface of the apertures is coated with a green ferrite paint. Conductors 14 are then formed on substrates 10 to pass through the torroids formed by the green ferrite. The structure including the substrates 10, ferrite torroids 12, and conductors 14 is then fired.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Magnetic Memory

The magnetic memory includes ceramic substrates 10 each having a plurality of ferrite torroids 12. These are formed in apertures in the substrate. Reading and writing in the memory is controlled by conductors 14 which are formed on substrates 10 and pass through the ferrite torroids in one coordinate direction and conductors 16 which are passed through torroids in a second coordinate direction. The memory is fabricated by first providing a ceramic substrate 10 with apertures. While the substrate is in an unfired state, the inner surface of the apertures is coated with a green ferrite paint. Conductors 14 are then formed on substrates 10 to pass through the torroids formed by the green ferrite. The structure including the substrates 10, ferrite torroids 12, and conductors 14 is then fired. A number of substrates thus prepared are stacked one above the other and wires 16 threaded through aligned apertures. Since the ferrite torroids 12 of the memory are supported by ceramic substrates 10, they can be made extremely thin to provide high-speed operation.

1

Page 2 of 2

2

[This page contains 2 pictures or other non-text objects]