Bubble memory device and method of manufacturing the same
US4470131A · kind A · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Jul 28, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49075
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A bubble memory device comprises an insulating substrate holding a bubble memory chip secured thereto, X- and Y-direction driving coils wound on the insulating substrate for providing an in-plane rotating filed to the chip, a lead frame secured to edge portions of the insulating substrate, and magnet blocks disposed above and below the coils and including permanent magnets and field homogenizer plates for providing a bias field to the chip. The magnet blocks are molded together with the insulating substrate, coils and lead frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.