Patent ID: 6191985
Filing Date: 2001-02-20
Classification: G11C

Abstract:
A dynamic memory, comprising:memory cells combined to form blocks and blocks combined to form block groups;bit lines and word lines connected to said memory cells for selecting said memory cells;redundant memory cells in said blocks;at least one redundant word line in at least one of said blocks, said at least one redundant word line connected to said redundant memory cells for selecting said redundant memory cells, said at least one redundant word line, after redundancy programming has been carried out, selectively replacing one of said word lines in any of said blocks; anda decoder unit connected to said word lines:in a first mode of operation, simultaneously selecting one of said word lines in each of said block groups; andin a second mode of operation, simultaneously selecting more than one of said word lines in each of said block groups and deactivating redundancy programming.