Method of and apparatus for measuring information hold time of memory cell in dynamic MIS memory
US4044344A · kind A · utility
1Cited by
2References
2Claims
0Family size
Assignee
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Key dates
| Filing date | May 12, 1976 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | May 12, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a MIS dynamic memory, information is written in the memory cell at a predetermined address, the access to other plural addresses is made for a fixed time period under such a condition that the memory cell of the predetermined address is not refreshed, and the stored information is thereafter read out of the memory cell of the predetermined address. The level of the read information is compared with a predetermined threshold value, thereby determining the information hold time of the memory cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.