Browse Prior Art Database

Generation of Bubbles by Expansion

IP.com Disclosure Number: IPCOM000075825D
Original Publication Date: 1971-Nov-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Levi, R: AUTHOR

Abstract

This configuration will split a single bubble into any number of bubbles.

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Generation of Bubbles by Expansion

This configuration will split a single bubble into any number of bubbles.

A current loop 10 is pulsed while the rotating in-plane field 12 is in position 1 and there is a bubble 14, as shown in Fig. 1. This expands the bubble within the loop 10, so that it is expanded over two similar poles 16 and 18 and one opposite pole 20, as shown in Fig. 2. It is important to note that the rotating field 12 is still at position 1. Upon the ending of the expansion current, the bubble 14 will be attracted to the two poles 16 and 18 and will be repelled by the opposite pole 20, thus pinching the bubble 14 in half. The pinching action (Fig. 3) is accomplished by the opposite pole 20, which is located between two similar poles 16 and 18. The basic principle described here can be used in a fanout technique.

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