Linear search algorithm for repair analysis with 4 spare row/4 spare column

An intelligent method of repair analysis that can repair a RAM block with 4 spare rows and 4 spare columns is implemented with CAM that has the function of datamatch, count-sub-entry, search-empty-entry. The key idea of this algorithm is on-the-fly repair analysis by rearrangement of the CAM array contents and repair analysis processing by one row or one column unit with a dual error buffer.