Static information storage and retrieval – Read/write circuit – Bad bit
Patent
1997-02-06
1998-11-17
Zarabian, A.
Static information storage and retrieval
Read/write circuit
Bad bit
3652257, G11C 1300
Patent
active
058386203
ABSTRACT:
In an integrated circuit having addressable primary elements and redundant elements which can be programmed to replace primary elements, a circuit and method are provided for cancelling and replacing redundant elements. A circuit is described which can be used in a memory such as a dynamic random access memory (DRAM) which uses a selectively blowable anti-fuse to disable a redundant element which was previously programmed to replace a defective primary element. The disclosure describes a method for permanently cancelling the defective redundant element and replacing the defective redundant element with another redundant element.
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Ong Adrian E.
Zagar Paul S.
Micro)n Technology, Inc.
Zarabian A.
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