Semiconductor integrated circuit device having link element
US6639863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B12/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit device has a first LT fuse group for storing replacement information used in a memory array; a second LT fuse group for storing confirmation information to confirm whether the first LT fuse group has accurately stored the replacement information; and an input/output port for outputting information PI actually stored in the first LT fuse group and information CI actually stored in the second LT fuse group to an external memory tester. The first and second LT fuse groups are fabricated according to the same conditions, and the laser input to the respective group is set to be under the same conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.