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

Gating a Bubble from a Lattice to an Isolated Region

IP.com Disclosure Number: IPCOM000085554D
Original Publication Date: 1976-Apr-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Collins, TW: AUTHOR

Abstract

At the present time, the generation of bubbles for use in a bubble lattice and/or the detection of bubbles from a bubble lattice is done in an isolated region having a much higher bias field than the lattice.

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

Gating a Bubble from a Lattice to an Isolated Region

At the present time, the generation of bubbles for use in a bubble lattice and/or the detection of bubbles from a bubble lattice is done in an isolated region having a much higher bias field than the lattice.

In order to reduce bubble state stability problems, the isolated region 10 is thinner than the lattice region 12. The isolated region 10 is connected to the lattice region 12 by a sloping transition region 14. Even with a gentle slope of 15 degrees, it is difficult to move a bubble up or down region 14 without a large force. However, a large force causes bubble collapse, runout or a change in state.

Conductors 16 and 18 are used for bubble translation in regions 12 and 10, respectively. The conductor 16 is responsible for a repulsive force which is the primary reason for the difficulty in moving bubbles up the slope 14.

It has been determined that the presence of a conductor 18 along the slope 14 will eliminate the problem, when sufficient current is applied to conductor 18 to cancel out the repulsive force of conductor 16.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]