Method for repairing hardware faults in memory chips

Details Method for repairing hardware faults in memory chips Method for repairing hardware faults in memory chips

2007-05-22

2007-05-22

Decady, Albert (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

C714S763000

Reexamination Certificate

active

10133795

ABSTRACT:
Method for repairing hardware faults in memory chips. According to one embodiment, a method is provided for repairing bit errors in memory chips having a multiplicity of memory cells. The method can include detecting bit errors using an error identification algorithm. Further, the method can include determining the addresses of faulty memory cells. The method can also include setting a data bit initiating a repair mode in response to detecting a bit error. In the repair mode, a signal present on a data line to the memory chips can be interpreted as a repair command to perform a repair. In addition, the method can include repairing the bit errors by activating redundant memory cells.

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