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Stripline Core Winding Method

IP.com Disclosure Number: IPCOM000093611D
Original Publication Date: 1967-Nov-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Taren, WJ: AUTHOR

Abstract

Problems with winding ferrite core memories can be eliminated by using a plastic material which when heated can be formed under pressure or vacuum. The basic winding pattern is formed by selective etching of copper into striplines 10 and 12 on two thermal plastic sheets 14 and 16. Cores 18 are positioned over apertures in one of the sheets 16 and the other sheet 14 is placed over the cores and heated to approximately 250 degrees F. This top sheet 14 is then forced against the cores 18. At the same time a vacuum is exerted on the underside of the cores 18 to pull the top sheet 14 through the core openings. The protruding striplines 12 are then soldered to the mating striplines 14 on the bottom sheet 16.

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Stripline Core Winding Method

Problems with winding ferrite core memories can be eliminated by using a plastic material which when heated can be formed under pressure or vacuum. The basic winding pattern is formed by selective etching of copper into striplines 10 and 12 on two thermal plastic sheets 14 and 16. Cores 18 are positioned over apertures in one of the sheets 16 and the other sheet 14 is placed over the cores and heated to approximately 250 degrees F. This top sheet 14 is then forced against the cores 18. At the same time a vacuum is exerted on the underside of the cores 18 to pull the top sheet 14 through the core openings. The protruding striplines 12 are then soldered to the mating striplines 14 on the bottom sheet 16.

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