Browse Prior Art Database

Read Only Storage System

IP.com Disclosure Number: IPCOM000093651D
Original Publication Date: 1967-Nov-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Taren, WJ: AUTHOR

Abstract

A read-only memory can be formed by the use of thermal plastic material which when heated can be formed under pressure or vacuum. The substrate 10 with sense lines 12 formed on one side has an opening at each bit position. Drive lines 14 are etched on a thermal plastic material 16 and positioned on the substrate at right angles to sense lines 12. Material 16 is then heated and pressure is selectively applied through the apertures in the bit positions where a 1 is to be stored by a data-coded plate 18. Thus lines 14 on material 16 are drawn into the apertures where a 1 is to be stored while lines 14 are uneffected at the apertures where a 0 is to be stored.

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Read Only Storage System

A read-only memory can be formed by the use of thermal plastic material which when heated can be formed under pressure or vacuum. The substrate 10 with sense lines 12 formed on one side has an opening at each bit position. Drive lines 14 are etched on a thermal plastic material 16 and positioned on the substrate at right angles to sense lines 12. Material 16 is then heated and pressure is selectively applied through the apertures in the bit positions where a 1 is to be stored by a data-coded plate 18. Thus lines 14 on material 16 are drawn into the apertures where a 1 is to be stored while lines 14 are uneffected at the apertures where a 0 is to be stored.

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