Guard rail for contiguous element bubble chips

Details Guard rail for contiguous element bubble chips Guard rail for contiguous element bubble chips

1979-12-28

1981-04-21

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365 39, G11C 1908

Patent

active

042636620

ABSTRACT:
Guard rails are described for particular use with magnetic bubble domain chips using contiguous propagation elements. These guard rails generally surround the active device area (storage area) of the chip and are used to move stray bubble domains from the storage area to the edge of the chip, or to a collapser etc., and also to prevent stray bubbles from entering the active device area. These guard rail structures are comprised of contiguous propagation elements characterized by an undulating edge and a smooth edge, both of which generally move bubble domains away from the active device area in response to the reorientation of the same magnetic drive field. In one embodiment, the guard rail is a spiral structure surrounding the active device area, having one end in the interior of the magnetic bubble chip adjacent to the active device area, and another end near the edge of the chip, or near a bubble annihilator, etc. In another embodiment, the guard rail is comprised of a plurality of structures generally defining a broken-spiral which surround the active device area. One end of each of structure is located near the active device area, while the other end is disposed toward the edge of the magnetic bubble chip.

REFERENCES:
patent: 3508222 (1970-04-01), Bobeck et al.
patent: 3729726 (1973-04-01), Bobeok
IBM Technical Disclosure Bulletin-vol. 19, No. 7, Dec. 1976, pp. 2741-2743.

Affiliated with

Also associated with

Rating

Guard rail for contiguous element bubble chips does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Guard rail for contiguous element bubble chips, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Guard rail for contiguous element bubble chips will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-561312