Intelligent electrically programmable and electrically erasable ROM
US4460982A · kind A · utility
165Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1982 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | May 20, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An E.sup.2 PROM is disclosed which provides automatic programming verification. Before data is written into the cells, the cells are automatically erased. The contents of the cells are checked to verify that erasing has been completed. If it has not, erasing is continued until the cells are erased. When data is written into the cells, the writing of the data into the cells continues until programming is verified. The verification is conducted at potentials other than the normal reference potential to assure that the cells are well programmed with either binary zeroes or binary ones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.