Repair circuit

Details Repair circuit Repair circuit

2005-09-27

2005-09-27

Lam, David (Department: 2827)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S225700, C365S230060

Reexamination Certificate

active

06950351

ABSTRACT:
A repair circuit includes a bit fail repair block for using the column and row addresses to determine whether they are fail addresses in order to decide whether bit repair for the fail addresses are to be performed, a row repair block for determining whether the row addresses are fail and deciding whether row repair for the row addresses are to be performed depending on the output of the bit fail repair block, and a plurality of column repair blocks for deciding whether column repair for the column addresses are to be performed and deciding whether a normal column driver must be selected, depending on the column address, column fuse boxes and an output signal of the bit fail repair block.

REFERENCES:
patent: 6084807 (2000-07-01), Choi

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