Semiconductor storage device

Details Semiconductor storage device Semiconductor storage device

1996-08-22

1999-01-19

Yoo, Do Hyun

Static information storage and retrieval

Read/write circuit

Bad bit

36518907, 3652257, 36523006, G11C 700

Patent

active

058620869

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.

REFERENCES:
patent: 5581508 (1996-12-01), Sasaki et al.
patent: 5666314 (1997-09-01), Akaogi et al.

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