Memory repair system and method

Details Memory repair system and method Memory repair system and method

2008-04-15

2008-04-15

Lam, David (Department: 2827)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S201000, C365S230060

Reexamination Certificate

active

07359261

ABSTRACT:
An IC includes a memory module that stores at least one of data and code. A memory repair database stores data relating to defective memory addresses. A memory control module communicates with the memory module and the memory repair database, detects defective memory locations in the memory module, locates redundant memory elements in the memory module, stores information that associates memory addresses of the defective memory locations with the redundant memory elements in the memory repair database, and outputs the information. The memory control module includes a plurality of electrical fuses. Storing the information includes electrically altering at least one of the plurality of electrical fuses. A redundant memory decoder module receives the information and physically remaps the memory addresses to the redundant memory locations.

REFERENCES:
patent: 4250570 (1981-02-01), Tsang et al.
patent: 6449197 (2002-09-01), Hiraki et al.
patent: 6940765 (2005-09-01), Kyung
Self-Repair Boosts Memory SoC Yields; Vincent Ratford; CommsDesign.com; Sep. 5, 2001; 6 pages.

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