Method and apparatus for the replacement of non-operational metal lines in DRAMS
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United States of America Patent
Stats
-
Jan 1, 2002
Grant Date -
May 31, 2001
app pub date -
Jan 18, 2001
filing date -
May 5, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor integrated circuit device including a redundant metal line for replacing a non-operational metal line for connecting to a circuit block. The invention further includes a method for decoupling a defective or otherwise non-operational conductive data line from a circuit block to which it is connected, and replacing the defective conductive data line with a redundant line by coupling it to the same circuit block. A spare conductive block is not needed. The redundant metal lines may be used in multiple levels of hierarchy within an integrated circuit device.
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