Block specific spare circuit
US5548225A · kind A · utility
35Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | May 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/808
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit for selecting a block spare in a semiconductor device is designed with a programmable circuit (14), storing an internal address and producing an address match signal AM and a block select signal BS in response to first (A) and second (B) address signals and the internal address. A global spare circuit (28) produces a global spare select signal (GSS), in response to the address match signal. A block spare circuit (34) produces a block spare select signal (BSS), in response to the global spare select signal and the block select signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.