A system and method for making efficient use of fuse ROM redundancy to
increase yield and security. Some embodiments provide a memory repair
system including a non-volatile memory component and a controller coupled
to the non-volatile memory component. The non-volatile memory component
includes a plurality of memory locations. The plurality of memory
locations includes a replacement memory location to replace a faulty
memory location and a replacement indicia memory location to store
replacement memory location indicia. The controller coupled to the
non-volatile memory component reads replacement memory location indicia
from the replacement indicia memory location, determines an address for
the replacement memory location using the indicia, reads the replacement
memory location, and transfers a data value contained in the replacement
memory location to a second memory component to repair a defective memory
location of the second memory component.