Magnetic bubble memory with single level electrically-conducting, drive arrangement
US4143419A · kind A · utility
5Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1977 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | Dec 6, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F10/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A conductor-access magnetic bubble memory is realized with a single electrically-conductive film for the propagation of bubbles. The film is characterized by sequences of apertures in the film. The sequences define paths for bubble movement in response to controlled current pulses. Ion-implanted regions offset with respect to the aperture edges ensure unidirectional bubble movement along the paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.