Method and apparatus for the replacement of non-operational metal lines in DRAMS
US6259309A · kind A · utility
1Cited by
11References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 5, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit device including a redundant metal line for replacing a non-operational metal line for connecting to a circuit block. The invention further includes a method for decoupling a defective or otherwise non-operational conductive data line from a circuit block to which it is connected, and replacing the defective conductive data line with a redundant line by coupling it to the same circuit block. A spare conductive block is not needed. The redundant metal lines may be used in multiple levels of hierarchy within an integrated circuit device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.