Semiconductor storage device
US5862086A · kind A · utility
21Cited by
2References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 22, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Aug 22, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/808
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor storage device is provided with a storage circuit for a faulty address and a plurality of redundant word lines corresponding to the storage circuit. The storage circuit is adapted to store a faulty address required for selecting a redundant word line. The faulty address is compared with an address input at the time of memory access by a comparator. Using a coincidence signal produced from the comparator and a predetermined address signal contained in the input address, a defect relief circuit selects one of the redundant word lines in place of the faulty word line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.