Patent ID: 6052318
Filing Date: 2000-04-18
Classification: G11C

Abstract:
A semiconductor memory having parallel redundancy replacement comprising:a plurality of memory arrays each comprising a plurality of elements, and at least two of said plurality of memory arrays comprising a plurality of redundancy elements, said plurality of memory arrays being divided by sense amplifier banks wherein adjacent memory arrays share the sense amplifier bank there between;at least two redundancy elements arranged in at least two domains, each of said at least two domains comprising at least one of said memory arrays and at least one of said sense amplifier banks;wherein at least two of said plurality of memory arrays located within said at least two domains are accessed with the same logical address, and are replaced simultaneously with said at least two redundancy elements located in said at least two domains when at least one of the simultaneously accessed memory arrays is defective, said replacement not using the same sense amplifier bank simultaneously.